Add measured max tracking and working loads

CHANGELOG.md

@@ -84,3 +84,19 @@ ANDROID_SYNC_RECEIPT=PASS
 TUI_SYNC_LOG_SHOW=PASS
 BIDIRECTIONAL_SYNC_V1=PASS
 ```
+
+### Measured max v1
+
+Added:
+
+- explicit measured-max derivation from `max_test` sessions only;
+- newest successful measured result and same-mode historical record;
+- dedicated TUI measured-max history and graph;
+- external working-load calculations at 60/70/80/90%;
+- selectable 0.5/1/2.5/5.0 kg working-load rounding;
+- direction-aware assistance measured-max semantics;
+- Android `Entraînement` / `Test max` session selection;
+- Android history/detail max-test identification;
+- measured-max regression coverage.
+
+No estimated 1RM, schema v6, or frozen Trainlog JSON v1 change was introduced.

README.md

@@ -29,7 +29,7 @@ ANDROID_TRIGGERED_SYNC=PASS
 ANDROID_SYNC_RECEIPT=PASS
 BIDIRECTIONAL_SYNC_V1=PASS
 
-DESKTOP_TESTS=19/19 PASS
+DESKTOP_TESTS=20/20 PASS
 ANDROID_BUILD=PASS
 ```
 
@@ -187,3 +187,23 @@ runs, a receipt is returned to Android, and the PC catalog is applied locally.
 - no fake data representation to force incompatible models together;
 - strict compiler warnings;
 - documentation and tests are part of feature completion.
+
+## Measured max
+
+Explicit `max_test` sessions are the only source of measured maxima.
+
+Ordinary training best sets remain ordinary performance even when they exceed a
+previous max-test result.
+
+The desktop exercise catalog exposes a separate measured-max view with current
+result, same-mode record, test history, a dedicated graph, and 60/70/80/90%
+working loads for external resistance. Working loads are rounded to a selectable
+practical increment and are not calculated for assistance.
+
+Android can explicitly save a session as `Entraînement` or `Test max`.
+
+```text
+MEASURED_MAX_V1=PASS
+WORKING_LOAD_PERCENTAGES=PASS
+ANDROID_MAX_TEST_SESSION=PASS
+```

android/app/src/main/java/com/labfytools/trainlog/data/TrainlogRepository.kt

@@ -16,6 +16,7 @@ import com.labfytools.trainlog.model.SessionSummary
 import com.labfytools.trainlog.model.SessionDetail
 import com.labfytools.trainlog.model.SessionExerciseDetail
 import com.labfytools.trainlog.model.SessionSetDraft
+import com.labfytools.trainlog.model.SessionType
 import com.labfytools.trainlog.model.TrackingMode
 import org.json.JSONArray
 import org.json.JSONObject
@@ -296,7 +297,8 @@ class TrainlogRepository(
 
                     put(
                         "session_type",
-                        "training"
+                        draft.sessionType
+                            .wireValue
                     )
                 }
 
@@ -469,6 +471,7 @@ class TrainlogRepository(
             SELECT
                 s.session_id,
                 s.started_at,
+                s.session_type,
                 COUNT(se.id)
             FROM sessions AS s
             LEFT JOIN session_exercises AS se
@@ -488,7 +491,11 @@ class TrainlogRepository(
                         startedAt =
                             cursor.getString(1),
                         exerciseCount =
-                            cursor.getInt(2),
+                            cursor.getInt(3),
+                        sessionType =
+                            SessionType.fromWire(
+                                cursor.getString(2)
+                            ),
                     )
             }
         }
@@ -1136,6 +1143,7 @@ class TrainlogRepository(
                 SELECT
                     s.session_id,
                     s.started_at,
+                    s.session_type,
                     COUNT(se.id)
                 FROM sessions AS s
                 LEFT JOIN session_exercises AS se
@@ -1154,7 +1162,11 @@ class TrainlogRepository(
                         startedAt =
                             cursor.getString(1),
                         exerciseCount =
-                            cursor.getInt(2),
+                            cursor.getInt(3),
+                        sessionType =
+                            SessionType.fromWire(
+                                cursor.getString(2)
+                            ),
                     )
                 }
             } ?: return null

android/app/src/main/java/com/labfytools/trainlog/model/SessionModels.kt

@@ -1,5 +1,23 @@
 package com.labfytools.trainlog.model
 
+enum class SessionType(
+    val wireValue: String,
+) {
+    TRAINING("training"),
+    MAX_TEST("max_test");
+
+    companion object {
+        fun fromWire(
+            value: String,
+        ): SessionType =
+            if (value == "max_test") {
+                MAX_TEST
+            } else {
+                TRAINING
+            }
+    }
+}
+
 data class SessionSetDraft(
     val reps: Int = 0,
     val durationSeconds: Int = 0,
@@ -15,12 +33,14 @@ data class SessionExerciseDraft(
 
 data class SessionDraft(
     val exercises: List<SessionExerciseDraft>,
+    val sessionType: SessionType = SessionType.TRAINING,
 )
 
 data class SessionSummary(
     val sessionId: String,
     val startedAt: String,
     val exerciseCount: Int,
+    val sessionType: SessionType = SessionType.TRAINING,
 )
 
 data class SessionExerciseDetail(

android/app/src/main/java/com/labfytools/trainlog/ui/HistoryScreen.kt

@@ -3,6 +3,7 @@ package com.labfytools.trainlog.ui
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.remember
 import com.labfytools.trainlog.data.TrainlogRepository
+import com.labfytools.trainlog.model.SessionType
 import com.labfytools.trainlog.ui.theme.LocalTrainlogColors
 
 @Composable
@@ -49,12 +50,25 @@ fun HistoryScreen(
                                 session.startedAt
                             ),
                         description =
-                            "${session.exerciseCount} exercice(s)",
+                            sessionTypeLabel(
+                                session.sessionType
+                            ) +
+                                " · " +
+                                "${session.exerciseCount} exercice(s)",
                         onClick = {
                             onOpenSession(
                                 session.sessionId
                             )
                         },
+                        accent =
+                            if (
+                                session.sessionType ==
+                                SessionType.MAX_TEST
+                            ) {
+                                colors.warning
+                            } else {
+                                colors.accent
+                            },
                     )
                 }
             }
@@ -62,6 +76,18 @@ fun HistoryScreen(
     }
 }
 
+internal fun sessionTypeLabel(
+    value: SessionType,
+): String =
+    if (
+        value ==
+        SessionType.MAX_TEST
+    ) {
+        "TEST MAX"
+    } else {
+        "ENTRAÎNEMENT"
+    }
+
 internal fun formatStartedAt(
     value: String,
 ): String {

android/app/src/main/java/com/labfytools/trainlog/ui/SessionDetailScreen.kt

@@ -6,6 +6,7 @@ import com.labfytools.trainlog.data.TrainlogRepository
 import com.labfytools.trainlog.model.ExerciseDataFields
 import com.labfytools.trainlog.model.RecordingMode
 import com.labfytools.trainlog.model.SessionExerciseDetail
+import com.labfytools.trainlog.model.SessionType
 import com.labfytools.trainlog.model.TrackingMode
 import com.labfytools.trainlog.ui.theme.LocalTrainlogColors
 
@@ -63,6 +64,25 @@ fun SessionDetailScreen(
                 )
             )
 
+            TrainlogInfo(
+                text =
+                    "Type : " +
+                        sessionTypeLabel(
+                            detail.summary
+                                .sessionType
+                        ),
+                color =
+                    if (
+                        detail.summary
+                            .sessionType ==
+                        SessionType.MAX_TEST
+                    ) {
+                        colors.warning
+                    } else {
+                        colors.accent
+                    },
+            )
+
             TrainlogInfo(
                 "${detail.summary.exerciseCount} exercice(s)"
             )

android/app/src/main/java/com/labfytools/trainlog/ui/SessionScreen.kt

@@ -1,5 +1,7 @@
 package com.labfytools.trainlog.ui
 
+/* TRAINLOG_ANDROID_MAX_TEST_SESSION_V1 */
+
 /* TRAINLOG_ANDROID_SESSION_REMOVE */
 
 /* TRAINLOG_VARIABLE_SET_REPS_V1 */
@@ -30,6 +32,7 @@ import com.labfytools.trainlog.model.RecordingMode
 import com.labfytools.trainlog.model.SessionDraft
 import com.labfytools.trainlog.model.SessionExerciseDraft
 import com.labfytools.trainlog.model.SessionSetDraft
+import com.labfytools.trainlog.model.SessionType
 import com.labfytools.trainlog.model.TrackingMode
 import com.labfytools.trainlog.ui.theme.LocalTrainlogColors
 import com.labfytools.trainlog.ui.theme.TrainlogTypography
@@ -70,6 +73,13 @@ fun SessionScreen(
             )
         }
 
+    var sessionType by
+        remember {
+            mutableStateOf(
+                SessionType.TRAINING
+            )
+        }
+
     var sessionRevision by
         remember {
             mutableIntStateOf(0)
@@ -93,9 +103,89 @@ fun SessionScreen(
             accent = colors.muted,
         )
 
+        TrainlogFrame(
+            title = "TYPE DE SEANCE"
+        ) {
+            TrainlogAction(
+                label =
+                    if (
+                        sessionType ==
+                        SessionType.TRAINING
+                    ) {
+                        "[✓] Entraînement"
+                    } else {
+                        "[ ] Entraînement"
+                    },
+                description =
+                    "Séance normale de travail.",
+                accent =
+                    if (
+                        sessionType ==
+                        SessionType.TRAINING
+                    ) {
+                        colors.success
+                    } else {
+                        colors.muted
+                    },
+                onClick = {
+                    sessionType =
+                        SessionType.TRAINING
+                },
+            )
+
+            TrainlogAction(
+                label =
+                    if (
+                        sessionType ==
+                        SessionType.MAX_TEST
+                    ) {
+                        "[✓] Test max"
+                    } else {
+                        "[ ] Test max"
+                    },
+                description =
+                    "Séance explicitement dédiée à une mesure de max.",
+                accent =
+                    if (
+                        sessionType ==
+                        SessionType.MAX_TEST
+                    ) {
+                        colors.warning
+                    } else {
+                        colors.muted
+                    },
+                onClick = {
+                    sessionType =
+                        SessionType.MAX_TEST
+                },
+            )
+        }
+
         TrainlogFrame(
             title = "SEANCE EN COURS"
         ) {
+            TrainlogInfo(
+                text =
+                    "Type : " +
+                        if (
+                            sessionType ==
+                            SessionType.MAX_TEST
+                        ) {
+                            "TEST MAX"
+                        } else {
+                            "ENTRAÎNEMENT"
+                        },
+                color =
+                    if (
+                        sessionType ==
+                        SessionType.MAX_TEST
+                    ) {
+                        colors.warning
+                    } else {
+                        colors.accent
+                    },
+            )
+
             if (
                 draftExercises.isEmpty()
             ) {
@@ -254,7 +344,9 @@ fun SessionScreen(
                                 .saveSession(
                                     SessionDraft(
                                         exercises =
-                                            draftExercises
+                                            draftExercises,
+                                        sessionType =
+                                            sessionType,
                                     )
                                 )
                     ) {
@@ -265,6 +357,9 @@ fun SessionScreen(
                             selectedExercise =
                                 null
 
+                            sessionType =
+                                SessionType.TRAINING
+
                             sessionRevision += 1
 
                             message =

docs/android.md

@@ -242,3 +242,29 @@ Android is not intended to own:
 - direct SQLite-file synchronization;
 - exercise-name heuristics;
 - a mounted-filesystem dependency.
+
+## 15. Test-max sessions
+
+Android session entry exposes:
+
+```text
+Entraînement
+Test max
+```
+
+The selection is persisted in the existing Android `sessions.session_type`
+column and exported in the mobile snapshot as:
+
+```text
+training
+max_test
+```
+
+History and detail visibly identify max-test sessions.
+
+Selecting `Test max` is explicit metadata; Trainlog does not infer max tests
+from large repetition or duration values.
+
+Android's current session form still records the exercise data fields it
+supports. Measured-max classification on the desktop uses only actual values
+that were truly captured and synchronized.

docs/current_state.md

@@ -31,7 +31,7 @@ ANDROID_SYNC_RECEIPT=PASS
 TUI_SYNC_LOG_SHOW=PASS
 BIDIRECTIONAL_SYNC_V1=PASS
 
-DESKTOP_TESTS=19/19 PASS
+DESKTOP_TESTS=20/20 PASS
 ANDROID_BUILD=PASS
 HARDWARE_SYNC_VALIDATION=PASS
 ```
@@ -120,7 +120,7 @@ No mounted Android filesystem is required.
 Desktop:
 
 ```text
-19/19 Meson tests PASS
+20/20 Meson tests PASS
 frozen JSON validator PASS
 import-contract validator PASS
 git diff --check PASS
@@ -139,8 +139,31 @@ multiple distinct request IDs consumed once each PASS
 No new feature is frozen by this documentation cleanup.
 
 ```text
+MEASURED_MAX_V1=PASS
+WORKING_LOAD_PERCENTAGES=PASS
+ANDROID_MAX_TEST_SESSION=PASS
 NEXT_FEATURE=UNFROZEN
 ```
 
 Future work must start from this validated baseline rather than from obsolete
 historical `NEXT` notes.
+
+## Measured max v1
+
+```text
+MEASURED_MAX_V1=PASS
+MEASURED_MAX_ONLY_FROM_MAX_TEST=PASS
+WORKING_LOAD_PERCENTAGES=PASS
+ASSISTANCE_DIRECTION_AWARE=PASS
+ANDROID_MAX_TEST_SESSION=PASS
+DESKTOP_TESTS=20/20 PASS
+```
+
+A measured maximum is derived only from explicit `max_test` sessions. Ordinary
+training is never promoted implicitly.
+
+The current measured result is the newest successful max test. The historical
+record compares max tests using the same load mode.
+
+External-load working percentages are pure calculations from the current
+measured load; they are not persisted and no estimated 1RM is introduced.

docs/database.md

@@ -276,3 +276,38 @@ schema_v5_migration
 ```
 
 The current normal suite contains 19 tests.
+
+## 11. Measured-max derivation
+
+Measured maxima require no desktop schema v6.
+
+The existing `sessions.session_type = max_test` classification plus actual
+`performed_sets` are sufficient.
+
+Exercise performance points carry the originating session type so the
+measured-max layer can distinguish explicit tests from ordinary training.
+
+Rules:
+
+```text
+training session
+    never becomes measured max implicitly
+
+max_test + external
+    greatest successful actual load
+    tie -> greatest reps/duration
+
+max_test + assistance
+    lowest successful assistance
+    tie -> greatest reps/duration
+
+max_test + no load
+    greatest successful reps/duration
+```
+
+A zero-repetition failed attempt is not a successful measurement.
+
+The current measured result is the newest successful max-test point. The record
+is the best max-test point using the same load mode.
+
+No extra maximum row is persisted; results are derived from canonical history.

docs/exercise_data_model.md

@@ -199,3 +199,29 @@ Continuous activity must never be:
 - hidden in notes;
 - converted into a fake set;
 - silently discarded.
+
+## 10. Measured max semantics
+
+`session_type = max_test` is an explicit semantic boundary.
+
+Measured max v1 never equates an ordinary best set with a measured maximum.
+
+For set-based exercises:
+
+```text
+external
+    max measured load = greatest successful actual load in a max_test
+
+assistance
+    best measured assistance = lowest successful assistance in a max_test
+
+none
+    measured max = greatest successful reps/duration in a max_test
+```
+
+Ties use greater repetitions/duration.
+
+The newest successful explicit test is the current measured result. A separate
+same-mode historical record may be older.
+
+No estimated 1RM is mixed into this contract.

docs/roadmap.md

@@ -161,3 +161,23 @@ fake performed sets for continuous activity
 fake uniform targets for heterogeneous actual sets
 incompatible changes to Trainlog JSON v1
 ```
+
+## Measured max v1
+
+```text
+MEASURED_MAX_V1=PASS
+MEASURED_MAX_ONLY_FROM_MAX_TEST=PASS
+MEASURED_MAX_HISTORY=PASS
+MEASURED_MAX_GRAPH=PASS
+WORKING_LOAD_PERCENTAGES=PASS
+ANDROID_MAX_TEST_SESSION=PASS
+DESKTOP_TESTS=20/20 PASS
+```
+
+No schema v6 and no Trainlog JSON v1 change were required.
+
+The next product feature remains intentionally unfrozen:
+
+```text
+NEXT_FEATURE=UNFROZEN
+```

docs/tests.md

@@ -85,7 +85,7 @@ Current normal suite:
 Validated checkpoint:
 
 ```text
-19/19 PASS
+20/20 PASS
 ```
 
 Notable regression coverage:
@@ -214,3 +214,29 @@ JAVA_HOME=/usr/lib/jvm/java-17-openjdk ./gradlew assembleDebug
 
 Documentation must describe the resulting state, not retain contradictory old
 `NEXT` checkpoints.
+
+## 11. Measured-max regression
+
+The normal Meson suite contains:
+
+```text
+measured_max
+```
+
+Coverage proves:
+
+- stronger ordinary training is ignored by measured-max classification;
+- only `max_test` sessions participate;
+- zero-repetition failed attempts are not promoted;
+- newest successful explicit test is the current measurement;
+- historical external-load record can remain older than current;
+- lower assistance is better;
+- no-load max tests compare actual reps/duration;
+- external working loads round to the configured increment;
+- working-load percentages reject assistance.
+
+Current normal baseline:
+
+```text
+20/20 PASS
+```

docs/tui.md

@@ -264,3 +264,43 @@ Current normal suite:
 ```text
 19/19 PASS
 ```
+
+## 15. Measured max view
+
+From `3 Exercices`, the selected exercise exposes:
+
+```text
+Enter   ordinary performance history
+m       measured max
+```
+
+The measured-max page is deliberately separate from ordinary best-set history.
+
+It shows:
+
+- count of explicit max-test sessions;
+- newest successful measured result;
+- best historical result using the same load mode;
+- dedicated max-test graph;
+- max-test history;
+- external-load working percentages at 60%, 70%, 80%, and 90%.
+
+For external load, `r` cycles practical rounding increments:
+
+```text
+0.5 kg
+1.0 kg
+2.5 kg
+5.0 kg
+```
+
+Working percentages are display calculations only.
+
+Assistance remains inverse-direction:
+
+```text
+less assistance = better
+```
+
+No percentage-of-max working load is produced for assistance or no-load
+performance.

tui/include/trainlog/database.h

@@ -197,6 +197,7 @@ TrainlogStatus trainlog_database_latest_body_pair(
 typedef struct TrainlogExercisePerformancePoint {
     char session_id[TRAINLOG_ID_MAX + 1U];
     char started_at[TRAINLOG_TIMESTAMP_MAX + 1U];
+    TrainlogSessionType session_type;
     TrainlogTrackingMode tracking_mode;
     TrainlogLoadMode load_mode;
     size_t actual_set_count;

tui/include/trainlog/measured_max.h

@@ -0,0 +1,60 @@
+#ifndef TRAINLOG_MEASURED_MAX_H
+#define TRAINLOG_MEASURED_MAX_H
+
+/**
+ * @file measured_max.h
+ * @brief Explicit measured-max classification and working-load calculations.
+ */
+
+#include <stdbool.h>
+#include <stddef.h>
+
+#include "trainlog/database.h"
+#include "trainlog/status.h"
+
+typedef struct TrainlogMeasuredMaxSummary {
+    size_t test_count;
+    size_t successful_test_count;
+    bool found;
+    TrainlogExercisePerformancePoint current;
+    bool has_record;
+    TrainlogExercisePerformancePoint record;
+} TrainlogMeasuredMaxSummary;
+
+/**
+ * @brief Summarize explicit max-test sessions from newest-first performance.
+ *
+ * Only points whose session_type is TRAINLOG_SESSION_MAX_TEST participate.
+ * Ordinary training performance is never promoted to a measured maximum.
+ *
+ * current is the newest successful explicit max-test result.
+ * record is the best successful max-test result using the same load mode as
+ * current:
+ *
+ * - external: greatest actual load, tie -> greatest reps/duration;
+ * - assistance: lowest assistance, tie -> greatest reps/duration;
+ * - no load: greatest reps/duration.
+ *
+ * No estimated 1RM is calculated.
+ */
+TrainlogStatus trainlog_measured_max_summarize(
+    const TrainlogExercisePerformancePoint *points,
+    size_t count,
+    TrainlogMeasuredMaxSummary *output
+);
+
+/**
+ * @brief Calculate a working load from the current measured external load.
+ *
+ * The result is percentage of the measured load rounded to the nearest
+ * positive increment. This calculation is deliberately unavailable for
+ * assistance and no-load performance.
+ */
+TrainlogStatus trainlog_measured_max_working_load(
+    const TrainlogExercisePerformancePoint *measured,
+    double percentage,
+    double increment_kg,
+    double *output_kg
+);
+
+#endif

tui/meson.build

@@ -36,6 +36,7 @@ trainlog_core_sources = files(
   'src/usb.c',
   'src/mtp.c',
   'src/reps.c',
+  'src/measured_max.c',
   'src/sync.c',
 )
 
@@ -341,3 +342,15 @@ trainlog_sync_once = executable(
   dependencies: trainlog_core_dep,
   c_args: strict_c_args,
 )
+
+test_measured_max = executable(
+  'test_measured_max',
+  'tests/test_measured_max.c',
+  dependencies: trainlog_core_dep,
+  c_args: strict_c_args,
+)
+
+test(
+  'measured_max',
+  test_measured_max,
+)

tui/src/database.c

@@ -3340,6 +3340,7 @@ static bool performance_candidate_better(
     }
 }
 
+/* TRAINLOG_MEASURED_MAX_SESSION_TYPE_V1 */
 TrainlogStatus trainlog_database_list_exercise_performance(
     TrainlogDatabase *database,
     const char *exercise_id,
@@ -3352,6 +3353,7 @@ TrainlogStatus trainlog_database_list_exercise_performance(
         "SELECT "
         "s.session_id, "
         "s.started_at, "
+        "s.session_type, "
         "e.tracking_mode, "
         "se.load_mode, "
         "ps.id, "
@@ -3377,13 +3379,19 @@ TrainlogStatus trainlog_database_list_exercise_performance(
     size_t copied = 0U;
     int rc;
 
-    if (database == NULL ||
+    if (
+        database == NULL ||
         database->connection == NULL ||
         exercise_id == NULL ||
         exercise_id[0] == '\0' ||
         output_count == NULL ||
-        (capacity > 0U && output == NULL)) {
+        (
-        return TRAINLOG_STATUS_INVALID_ARGUMENT;
+            capacity > 0U &&
+            output == NULL
+        )
+    ) {
+        return
+            TRAINLOG_STATUS_INVALID_ARGUMENT;
     }
 
     *output_count = 0U;
@@ -3398,7 +3406,8 @@ TrainlogStatus trainlog_database_list_exercise_performance(
     );
 
     if (rc != SQLITE_OK) {
-        return TRAINLOG_STATUS_DATABASE_ERROR;
+        return
+            TRAINLOG_STATUS_DATABASE_ERROR;
     }
 
     rc = sqlite3_bind_text(
@@ -3410,31 +3419,63 @@ TrainlogStatus trainlog_database_list_exercise_performance(
     );
 
     if (rc != SQLITE_OK) {
-        (void)sqlite3_finalize(statement);
+        (void)sqlite3_finalize(
-        return TRAINLOG_STATUS_DATABASE_ERROR;
+            statement
+        );
+
+        return
+            TRAINLOG_STATUS_DATABASE_ERROR;
     }
 
-    while ((rc = sqlite3_step(statement)) == SQLITE_ROW) {
+    while (
+        (rc = sqlite3_step(statement)) ==
+        SQLITE_ROW
+    ) {
         const unsigned char *session_id =
-            sqlite3_column_text(statement, 0);
+            sqlite3_column_text(
+                statement,
+                0
+            );
 
         const unsigned char *started_at =
-            sqlite3_column_text(statement, 1);
+            sqlite3_column_text(
+                statement,
+                1
+            );
+
+        const unsigned char *session_type =
+            sqlite3_column_text(
+                statement,
+                2
+            );
 
         const unsigned char *tracking_mode =
-            sqlite3_column_text(statement, 2);
+            sqlite3_column_text(
+                statement,
+                3
+            );
 
         const unsigned char *load_mode =
-            sqlite3_column_text(statement, 3);
+            sqlite3_column_text(
+                statement,
+                4
+            );
 
         bool new_session;
 
-        if (session_id == NULL ||
+        if (
+            session_id == NULL ||
             started_at == NULL ||
+            session_type == NULL ||
             tracking_mode == NULL ||
-            load_mode == NULL) {
+            load_mode == NULL
-            (void)sqlite3_finalize(statement);
+        ) {
-            return TRAINLOG_STATUS_DATABASE_ERROR;
+            (void)sqlite3_finalize(
+                statement
+            );
+
+            return
+                TRAINLOG_STATUS_DATABASE_ERROR;
         }
 
         new_session =
@@ -3455,7 +3496,8 @@ TrainlogStatus trainlog_database_list_exercise_performance(
             current = NULL;
 
             if (copied < capacity) {
-                current = &output[copied];
+                current =
+                    &output[copied];
 
                 (void)memset(
                     current,
@@ -3477,6 +3519,20 @@ TrainlogStatus trainlog_database_list_exercise_performance(
                     (const char *)started_at
                 );
 
+                if (
+                    !session_type_from_sql(
+                        (const char *)session_type,
+                        &current->session_type
+                    )
+                ) {
+                    (void)sqlite3_finalize(
+                        statement
+                    );
+
+                    return
+                        TRAINLOG_STATUS_DATABASE_ERROR;
+                }
+
                 current->tracking_mode =
                     tracking_mode_from_sql(
                         (const char *)tracking_mode
@@ -3491,63 +3547,100 @@ TrainlogStatus trainlog_database_list_exercise_performance(
             }
         }
 
-        if (current != NULL &&
+        if (
-            sqlite3_column_type(statement, 4) != SQLITE_NULL) {
+            current != NULL &&
+            sqlite3_column_type(
+                statement,
+                5
+            ) != SQLITE_NULL
+        ) {
             int metric_value;
             int has_weight;
             double weight_kg;
 
             ++current->actual_set_count;
 
-            if (current->tracking_mode ==
+            if (
-                TRAINLOG_TRACKING_REPS) {
+                current->tracking_mode ==
+                TRAINLOG_TRACKING_REPS
+            ) {
                 metric_value =
-                    sqlite3_column_type(statement, 5) !=
+                    sqlite3_column_type(
-                        SQLITE_NULL
+                        statement,
-                        ? sqlite3_column_int(statement, 5)
+                        6
+                    ) != SQLITE_NULL
+                        ? sqlite3_column_int(
+                            statement,
+                            6
+                        )
                         : 0;
             } else {
                 metric_value =
-                    sqlite3_column_type(statement, 6) !=
+                    sqlite3_column_type(
-                        SQLITE_NULL
+                        statement,
-                        ? sqlite3_column_int(statement, 6)
+                        7
+                    ) != SQLITE_NULL
+                        ? sqlite3_column_int(
+                            statement,
+                            7
+                        )
                         : 0;
             }
 
             has_weight =
-                sqlite3_column_type(statement, 7) !=
+                sqlite3_column_type(
-                    SQLITE_NULL;
+                    statement,
+                    8
+                ) != SQLITE_NULL;
 
             weight_kg =
                 has_weight != 0
-                    ? sqlite3_column_double(statement, 7)
+                    ? sqlite3_column_double(
+                        statement,
+                        8
+                    )
                     : 0.0;
 
-            if (performance_candidate_better(
+            if (
+                performance_candidate_better(
                     current,
                     current->load_mode,
                     metric_value,
                     has_weight,
                     weight_kg
-                )) {
+                )
+            ) {
                 current->has_performance = 1;
-                current->metric_value = metric_value;
+                current->metric_value =
-                current->has_weight = has_weight;
+                    metric_value;
-                current->weight_kg = weight_kg;
+                current->has_weight =
+                    has_weight;
+                current->weight_kg =
+                    weight_kg;
             }
         }
     }
 
     if (rc != SQLITE_DONE) {
-        (void)sqlite3_finalize(statement);
+        (void)sqlite3_finalize(
-        return TRAINLOG_STATUS_DATABASE_ERROR;
+            statement
+        );
+
+        return
+            TRAINLOG_STATUS_DATABASE_ERROR;
     }
 
-    if (sqlite3_finalize(statement) != SQLITE_OK) {
+    if (
-        return TRAINLOG_STATUS_DATABASE_ERROR;
+        sqlite3_finalize(
+            statement
+        ) != SQLITE_OK
+    ) {
+        return
+            TRAINLOG_STATUS_DATABASE_ERROR;
     }
 
     *output_count = copied;
+
     return TRAINLOG_STATUS_OK;
 }
 

tui/src/measured_max.c

@@ -0,0 +1,205 @@
+/**
+ * @file measured_max.c
+ * @brief Explicit measured-max and working-load implementation.
+ */
+
+#include "trainlog/measured_max.h"
+
+#include <math.h>
+#include <string.h>
+
+static bool measured_point_better(
+    const TrainlogExercisePerformancePoint *candidate,
+    const TrainlogExercisePerformancePoint *current
+)
+{
+    if (
+        candidate == NULL ||
+        candidate->has_performance == 0
+    ) {
+        return false;
+    }
+
+    if (
+        current == NULL ||
+        current->has_performance == 0
+    ) {
+        return true;
+    }
+
+    if (
+        candidate->load_mode !=
+        current->load_mode
+    ) {
+        return false;
+    }
+
+    switch (candidate->load_mode) {
+    case TRAINLOG_LOAD_EXTERNAL:
+        if (candidate->has_weight == 0) {
+            return false;
+        }
+
+        if (
+            candidate->weight_kg >
+            current->weight_kg
+        ) {
+            return true;
+        }
+
+        return
+            candidate->weight_kg ==
+                current->weight_kg &&
+            candidate->metric_value >
+                current->metric_value;
+
+    case TRAINLOG_LOAD_ASSISTANCE:
+        if (candidate->has_weight == 0) {
+            return false;
+        }
+
+        if (
+            candidate->weight_kg <
+            current->weight_kg
+        ) {
+            return true;
+        }
+
+        return
+            candidate->weight_kg ==
+                current->weight_kg &&
+            candidate->metric_value >
+                current->metric_value;
+
+    case TRAINLOG_LOAD_NONE:
+    default:
+        return
+            candidate->metric_value >
+            current->metric_value;
+    }
+}
+
+TrainlogStatus trainlog_measured_max_summarize(
+    const TrainlogExercisePerformancePoint *points,
+    size_t count,
+    TrainlogMeasuredMaxSummary *output
+)
+{
+    size_t index;
+
+    if (
+        output == NULL ||
+        (
+            count > 0U &&
+            points == NULL
+        )
+    ) {
+        return
+            TRAINLOG_STATUS_INVALID_ARGUMENT;
+    }
+
+    (void)memset(
+        output,
+        0,
+        sizeof(*output)
+    );
+
+    for (
+        index = 0U;
+        index < count;
+        ++index
+    ) {
+        const TrainlogExercisePerformancePoint *point =
+            &points[index];
+
+        if (
+            point->session_type !=
+            TRAINLOG_SESSION_MAX_TEST
+        ) {
+            continue;
+        }
+
+        ++output->test_count;
+
+        if (point->has_performance == 0) {
+            continue;
+        }
+
+        ++output->successful_test_count;
+
+        if (!output->found) {
+            output->found = true;
+            output->current = *point;
+            output->has_record = true;
+            output->record = *point;
+            continue;
+        }
+
+        if (
+            point->load_mode ==
+                output->current.load_mode &&
+            measured_point_better(
+                point,
+                &output->record
+            )
+        ) {
+            output->record = *point;
+        }
+    }
+
+    return TRAINLOG_STATUS_OK;
+}
+
+TrainlogStatus trainlog_measured_max_working_load(
+    const TrainlogExercisePerformancePoint *measured,
+    double percentage,
+    double increment_kg,
+    double *output_kg
+)
+{
+    double raw;
+    double rounded;
+
+    if (
+        measured == NULL ||
+        output_kg == NULL ||
+        measured->session_type !=
+            TRAINLOG_SESSION_MAX_TEST ||
+        measured->has_performance == 0 ||
+        measured->load_mode !=
+            TRAINLOG_LOAD_EXTERNAL ||
+        measured->has_weight == 0 ||
+        !isfinite(measured->weight_kg) ||
+        measured->weight_kg <= 0.0 ||
+        !isfinite(percentage) ||
+        percentage <= 0.0 ||
+        percentage > 100.0 ||
+        !isfinite(increment_kg) ||
+        increment_kg <= 0.0
+    ) {
+        return
+            TRAINLOG_STATUS_INVALID_ARGUMENT;
+    }
+
+    raw =
+        measured->weight_kg *
+        percentage /
+        100.0;
+
+    rounded =
+        floor(
+            raw /
+            increment_kg +
+            0.5
+        ) *
+        increment_kg;
+
+    if (rounded <= 0.0) {
+        rounded =
+            increment_kg;
+    }
+
+    *output_kg = rounded;
+
+    return TRAINLOG_STATUS_OK;
+}

tui/src/tui.c

@@ -24,6 +24,7 @@
 #include "trainlog/catalog.h"
 #include "trainlog/duration.h"
 #include "trainlog/id.h"
+#include "trainlog/measured_max.h"
 #include "trainlog/mtp.h"
 #include "trainlog/sync.h"
 #include "trainlog/reps.h"
@@ -642,7 +643,8 @@ static void draw_exercise_performance_graph(
     TrainlogLoadMode mode,
     TrainlogTrackingMode tracking_mode,
     int top,
-    int height
+    int height,
+    bool measured_max
 )
 {
     size_t indices[EXERCISE_GRAPH_POINTS];
@@ -720,7 +722,9 @@ static void draw_exercise_performance_graph(
         mvprintw(
             top,
             left,
-            "Assistance (kg) — moins = mieux"
+            measured_max
+                ? "Assistance mesurée (kg) — moins = mieux"
+                : "Assistance (kg) — moins = mieux"
         );
 
         attroff(
@@ -733,7 +737,9 @@ static void draw_exercise_performance_graph(
         mvprintw(
             top,
             left,
-            "Charge du meilleur set (kg)"
+            measured_max
+                ? "Max mesuré (kg)"
+                : "Charge du meilleur set (kg)"
         );
     } else if (
         tracking_mode ==
@@ -742,13 +748,17 @@ static void draw_exercise_performance_graph(
         mvprintw(
             top,
             left,
-            "Meilleure durée"
+            measured_max
+                ? "Durée max mesurée"
+                : "Meilleure durée"
         );
     } else {
         mvprintw(
             top,
             left,
-            "Meilleures répétitions"
+            measured_max
+                ? "Répétitions max mesurées"
+                : "Meilleures répétitions"
         );
     }
 
@@ -1234,7 +1244,8 @@ static void screen_exercise_performance(
             graph_mode,
             exercise->tracking_mode,
             graph_content_top,
-            graph_height
+            graph_height,
+            false
         );
     }
 
@@ -1300,6 +1311,497 @@ static void screen_exercise_performance(
     }
 }
 
+/* TRAINLOG_MEASURED_MAX_TUI_V1 */
+
+static void screen_exercise_measured_max(
+    TrainlogDatabase *database,
+    const TrainlogExercise *exercise
+)
+{
+    static const double increments[] = {
+        0.5,
+        1.0,
+        2.5,
+        5.0
+    };
+
+    static const double percentages[] = {
+        60.0,
+        70.0,
+        80.0,
+        90.0
+    };
+
+    size_t increment_index = 2U;
+
+    if (
+        database == NULL ||
+        exercise == NULL
+    ) {
+        return;
+    }
+
+    for (;;) {
+        TrainlogExercisePerformancePoint
+            points[MAX_SESSIONS];
+
+        TrainlogExercisePerformancePoint
+            max_points[MAX_SESSIONS];
+
+        TrainlogMeasuredMaxSummary summary;
+
+        size_t count = 0U;
+        size_t max_count = 0U;
+        size_t index;
+        size_t history_limit;
+
+        bool decorated =
+            COLS >= 100 &&
+            LINES >= 30;
+
+        int summary_top =
+            decorated ? 8 : 3;
+
+        int summary_bottom =
+            decorated ? 15 : 9;
+
+        int graph_top =
+            decorated ? 16 : 10;
+
+        int graph_bottom =
+            decorated ? 23 : 17;
+
+        int history_top =
+            decorated ? 24 : 18;
+
+        int history_bottom =
+            LINES - 4;
+
+        int key;
+
+        if (
+            trainlog_database_list_exercise_performance(
+                database,
+                exercise->exercise_id,
+                points,
+                MAX_SESSIONS,
+                &count
+            ) != TRAINLOG_STATUS_OK ||
+            trainlog_measured_max_summarize(
+                points,
+                count,
+                &summary
+            ) != TRAINLOG_STATUS_OK
+        ) {
+            draw_shell(
+                "TRAINLOG — Max mesuré",
+                "Une touche pour revenir"
+            );
+
+            status_line(
+                "Impossible de lire les tests de max.",
+                TRAINLOG_COLOR_ERROR
+            );
+
+            wait_key();
+            return;
+        }
+
+        for (
+            index = 0U;
+            index < count &&
+            max_count < MAX_SESSIONS;
+            ++index
+        ) {
+            if (
+                points[index].session_type ==
+                TRAINLOG_SESSION_MAX_TEST
+            ) {
+                max_points[max_count] =
+                    points[index];
+
+                ++max_count;
+            }
+        }
+
+        erase();
+        box(
+            stdscr,
+            0,
+            0
+        );
+
+        if (decorated) {
+            section_ascii_header(
+                ":: M A X   M E S U R E ::"
+            );
+
+            dashboard_panel(
+                summary_top,
+                2,
+                summary_bottom,
+                COLS - 3,
+                "MAX MESURE"
+            );
+
+            dashboard_panel(
+                graph_top,
+                2,
+                graph_bottom,
+                COLS - 3,
+                "EVOLUTION DES TESTS MAX"
+            );
+
+            if (
+                history_bottom >
+                history_top + 1
+            ) {
+                exercise_panel(
+                    history_top,
+                    2,
+                    history_bottom,
+                    COLS - 3,
+                    "HISTORIQUE TESTS MAX"
+                );
+            }
+
+            attron(
+                trainlog_theme_attribute(
+                    TRAINLOG_COLOR_MUTED
+                )
+            );
+
+            mvprintw(
+                LINES - 2,
+                2,
+                "%.*s",
+                COLS - 4,
+                "r arrondi charge  b/Échap retour"
+            );
+
+            attroff(
+                trainlog_theme_attribute(
+                    TRAINLOG_COLOR_MUTED
+                )
+            );
+        } else {
+            draw_shell(
+                "TRAINLOG — Max mesuré",
+                "r arrondi charge  b/Échap retour"
+            );
+
+            exercise_panel(
+                summary_top,
+                2,
+                summary_bottom,
+                COLS - 3,
+                "MAX MESURE"
+            );
+
+            exercise_panel(
+                graph_top,
+                2,
+                graph_bottom,
+                COLS - 3,
+                "EVOLUTION"
+            );
+
+            if (
+                history_bottom >
+                history_top + 1
+            ) {
+                exercise_panel(
+                    history_top,
+                    2,
+                    history_bottom,
+                    COLS - 3,
+                    "HISTORIQUE"
+                );
+            }
+        }
+
+        attron(
+            A_BOLD |
+            trainlog_theme_attribute(
+                TRAINLOG_COLOR_ACCENT
+            )
+        );
+
+        mvprintw(
+            summary_top + 1,
+            5,
+            "%s",
+            exercise->name
+        );
+
+        attroff(
+            A_BOLD |
+            trainlog_theme_attribute(
+                TRAINLOG_COLOR_ACCENT
+            )
+        );
+
+        mvprintw(
+            summary_top + 2,
+            5,
+            "Tests max : %zu · réussis : %zu",
+            summary.test_count,
+            summary.successful_test_count
+        );
+
+        if (!summary.found) {
+            mvprintw(
+                summary_top + 3,
+                5,
+                "Aucun max mesuré réussi."
+            );
+
+            mvprintw(
+                summary_top + 4,
+                5,
+                "Seules les séances explicitement « Test de max » comptent."
+            );
+        } else {
+            char current_text[128];
+            char record_text[128];
+            char current_date[11];
+            char record_date[11];
+
+            exercise_format_performance(
+                &summary.current,
+                current_text,
+                sizeof(current_text)
+            );
+
+            exercise_format_performance(
+                &summary.record,
+                record_text,
+                sizeof(record_text)
+            );
+
+            exercise_short_date(
+                summary.current.started_at,
+                current_date
+            );
+
+            exercise_short_date(
+                summary.record.started_at,
+                record_date
+            );
+
+            mvprintw(
+                summary_top + 3,
+                5,
+                "Actuel : %s · %.*s",
+                current_date,
+                COLS - 32,
+                current_text
+            );
+
+            mvprintw(
+                summary_top + 4,
+                5,
+                "Record même mode : %s · %.*s",
+                record_date,
+                COLS - 42,
+                record_text
+            );
+
+            if (
+                summary.current.load_mode ==
+                TRAINLOG_LOAD_EXTERNAL
+            ) {
+                double working[4];
+                bool valid = true;
+
+                for (
+                    index = 0U;
+                    index < 4U;
+                    ++index
+                ) {
+                    if (
+                        trainlog_measured_max_working_load(
+                            &summary.current,
+                            percentages[index],
+                            increments[increment_index],
+                            &working[index]
+                        ) != TRAINLOG_STATUS_OK
+                    ) {
+                        valid = false;
+                        break;
+                    }
+                }
+
+                if (valid) {
+                    mvprintw(
+                        summary_top + 5,
+                        5,
+                        "Travail : 60%% %.1f · 70%% %.1f · 80%% %.1f · 90%% %.1f kg",
+                        working[0],
+                        working[1],
+                        working[2],
+                        working[3]
+                    );
+
+                    mvprintw(
+                        summary_top + 6,
+                        5,
+                        "Arrondi : %.1f kg (r pour changer) · aucun 1RM estimé",
+                        increments[increment_index]
+                    );
+                }
+            } else if (
+                summary.current.load_mode ==
+                TRAINLOG_LOAD_ASSISTANCE
+            ) {
+                attron(
+                    trainlog_theme_attribute(
+                        TRAINLOG_COLOR_WARNING
+                    )
+                );
+
+                mvprintw(
+                    summary_top + 5,
+                    5,
+                    "Assistance : moins de kg = mieux."
+                );
+
+                mvprintw(
+                    summary_top + 6,
+                    5,
+                    "Pourcentages de charge non applicables à l'assistance."
+                );
+
+                attroff(
+                    trainlog_theme_attribute(
+                        TRAINLOG_COLOR_WARNING
+                    )
+                );
+            } else {
+                mvprintw(
+                    summary_top + 5,
+                    5,
+                    "Sans charge externe : pourcentages non applicables."
+                );
+
+                mvprintw(
+                    summary_top + 6,
+                    5,
+                    "Le max reste une valeur réellement réalisée, jamais estimée."
+                );
+            }
+        }
+
+        if (
+            summary.found &&
+            max_count > 0U
+        ) {
+            int graph_content_top =
+                graph_top + 1;
+
+            int graph_height =
+                graph_bottom -
+                graph_top -
+                2;
+
+            draw_exercise_performance_graph(
+                max_points,
+                max_count,
+                summary.current.load_mode,
+                exercise->tracking_mode,
+                graph_content_top,
+                graph_height,
+                true
+            );
+        } else {
+            mvprintw(
+                graph_top + 2,
+                5,
+                "Aucun point de max mesuré à tracer."
+            );
+        }
+
+        if (
+            history_bottom >
+            history_top + 1
+        ) {
+            int first_row =
+                history_top + 1;
+
+            history_limit =
+                history_bottom >
+                    first_row
+                    ? (size_t)(
+                        history_bottom -
+                        first_row
+                    )
+                    : 0U;
+
+            for (
+                index = 0U;
+                index < max_count &&
+                index < history_limit;
+                ++index
+            ) {
+                char date[11];
+                char text[128];
+
+                exercise_short_date(
+                    max_points[index].started_at,
+                    date
+                );
+
+                exercise_format_performance(
+                    &max_points[index],
+                    text,
+                    sizeof(text)
+                );
+
+                mvprintw(
+                    first_row +
+                        (int)index,
+                    5,
+                    "%s  %-13s  %.*s",
+                    date,
+                    exercise_load_mode_label(
+                        max_points[index]
+                            .load_mode
+                    ),
+                    COLS - 40,
+                    text
+                );
+            }
+        }
+
+        refresh();
+        key = getch();
+
+        if (
+            key == 'b' ||
+            key == 'B' ||
+            key == 27 ||
+            key == '\n' ||
+            key == KEY_ENTER
+        ) {
+            return;
+        }
+
+        if (
+            key == 'r' ||
+            key == 'R'
+        ) {
+            increment_index =
+                (
+                    increment_index + 1U
+                ) %
+                (
+                    sizeof(increments) /
+                    sizeof(increments[0])
+                );
+        }
+    }
+}
+
 /* TRAINLOG_SECTION_ASCII_HEADER */
 
 static void section_ascii_header(
@@ -1560,7 +2062,7 @@ static void screen_exercises(
                 2,
                 "%.*s",
                 COLS - 4,
-                "Tab zone  ↑↓/PgUp/PgDn catalogue  ←→ menu  Entrée ouvrir  a ajouter  0/Home accueil  F1-F4 direct  b/Échap retour"
+                "Tab zone  ↑↓/PgUp/PgDn catalogue  ←→ menu  Entrée ouvrir  m max mesuré  a ajouter  0/Home accueil  F1-F4 direct  b/Échap retour"
             );
 
             attroff(
@@ -1571,7 +2073,7 @@ static void screen_exercises(
         } else {
             draw_shell(
                 "TRAINLOG — Exercices",
-                "↑↓ naviguer  Entrée performance  a ajouter  b/Échap retour"
+                "↑↓ naviguer  Entrée performance  m max mesuré  a ajouter  b/Échap retour"
             );
         }
 
@@ -1757,6 +2259,17 @@ if (primary_top_nav_activate(
             continue;
         }
 
+        if (count > 0U &&
+            (key == 'm' ||
+             key == 'M')) {
+            screen_exercise_measured_max(
+                database,
+                &exercises[selected]
+            );
+
+            continue;
+        }
+
         if (count > 0U &&
             (key == '\n' ||
              key == KEY_ENTER)) {

tui/tests/test_measured_max.c

@@ -0,0 +1,514 @@
+/**
+ * @file test_measured_max.c
+ * @brief Explicit measured-max and working-load regression tests.
+ */
+
+#include <stdbool.h>
+#include <stdio.h>
+#include <string.h>
+
+#include "trainlog/database.h"
+#include "trainlog/measured_max.h"
+
+#define CHECK(condition)                                                     \
+    do {                                                                     \
+        if (!(condition)) {                                                  \
+            (void)fprintf(                                                   \
+                stderr,                                                      \
+                "CHECK failed at %s:%d: %s\n",                               \
+                __FILE__,                                                    \
+                __LINE__,                                                    \
+                #condition                                                   \
+            );                                                               \
+            return false;                                                    \
+        }                                                                    \
+    } while (0)
+
+static bool add_exercise(
+    TrainlogDatabase *database,
+    const char *id,
+    const char *name
+)
+{
+    return
+        trainlog_database_insert_exercise(
+            database,
+            id,
+            name,
+            name,
+            TRAINLOG_TRACKING_REPS
+        ) == TRAINLOG_STATUS_OK;
+}
+
+static bool insert_reps_session(
+    TrainlogDatabase *database,
+    const char *session_id,
+    const char *started_at,
+    TrainlogSessionType session_type,
+    const char *exercise_id,
+    TrainlogLoadMode load_mode,
+    const int *reps,
+    const double *weights,
+    size_t set_count
+)
+{
+    TrainlogSetInput sets[4];
+    TrainlogSessionExerciseInput exercise;
+    TrainlogSessionInput session;
+    size_t index;
+
+    if (
+        database == NULL ||
+        session_id == NULL ||
+        started_at == NULL ||
+        exercise_id == NULL ||
+        reps == NULL ||
+        set_count == 0U ||
+        set_count > 4U
+    ) {
+        return false;
+    }
+
+    (void)memset(
+        sets,
+        0,
+        sizeof(sets)
+    );
+
+    for (
+        index = 0U;
+        index < set_count;
+        ++index
+    ) {
+        sets[index].reps =
+            reps[index];
+
+        if (
+            load_mode !=
+            TRAINLOG_LOAD_NONE
+        ) {
+            if (weights == NULL) {
+                return false;
+            }
+
+            sets[index].has_weight = true;
+            sets[index].weight_kg =
+                weights[index];
+        }
+    }
+
+    (void)memset(
+        &exercise,
+        0,
+        sizeof(exercise)
+    );
+
+    (void)snprintf(
+        exercise.exercise_id,
+        sizeof(exercise.exercise_id),
+        "%s",
+        exercise_id
+    );
+
+    exercise.recording_mode =
+        TRAINLOG_RECORDING_SETS;
+
+    exercise.load_mode =
+        load_mode;
+
+    exercise.rest_seconds = 120;
+    exercise.target_sets =
+        (int)set_count;
+    exercise.target_reps = 1;
+
+    if (
+        load_mode !=
+        TRAINLOG_LOAD_NONE
+    ) {
+        exercise.target_has_weight = true;
+        exercise.target_weight_kg =
+            weights[0];
+    }
+
+    exercise.sets = sets;
+    exercise.set_count = set_count;
+
+    (void)memset(
+        &session,
+        0,
+        sizeof(session)
+    );
+
+    (void)snprintf(
+        session.session_id,
+        sizeof(session.session_id),
+        "%s",
+        session_id
+    );
+
+    (void)snprintf(
+        session.started_at,
+        sizeof(session.started_at),
+        "%s",
+        started_at
+    );
+
+    (void)snprintf(
+        session.ended_at,
+        sizeof(session.ended_at),
+        "%s",
+        "2026-09-06T21:00:00+02:00"
+    );
+
+    session.session_type =
+        session_type;
+
+    session.exercises =
+        &exercise;
+
+    session.exercise_count = 1U;
+
+    return
+        trainlog_database_insert_session(
+            database,
+            &session
+        ) == TRAINLOG_STATUS_OK;
+}
+
+static bool test_measured_max_semantics(void)
+{
+    TrainlogDatabase *database = NULL;
+
+    TrainlogExercisePerformancePoint
+        points[16];
+
+    TrainlogMeasuredMaxSummary summary;
+
+    size_t count = 0U;
+    double working = 0.0;
+
+    const int one_rep[] = {1};
+    const int failed_then_one[] = {0, 1};
+    const int reps_20[] = {20};
+    const int reps_15[] = {15};
+
+    const double training_140[] = {140.0};
+    const double external_110[] = {110.0};
+    const double external_latest[] = {
+        115.0,
+        105.0,
+    };
+    const double assistance_30[] = {30.0};
+    const double assistance_35[] = {35.0};
+
+    CHECK(
+        trainlog_database_open(
+            ":memory:",
+            &database
+        ) == TRAINLOG_STATUS_OK
+    );
+
+    CHECK(
+        add_exercise(
+            database,
+            "ex_measured_external",
+            "measured external"
+        )
+    );
+
+    CHECK(
+        add_exercise(
+            database,
+            "ex_measured_assistance",
+            "measured assistance"
+        )
+    );
+
+    CHECK(
+        add_exercise(
+            database,
+            "ex_measured_none",
+            "measured none"
+        )
+    );
+
+    /*
+     * A stronger ordinary training set must never become a measured maximum.
+     */
+    CHECK(
+        insert_reps_session(
+            database,
+            "se_training_140",
+            "2026-09-01T18:00:00+02:00",
+            TRAINLOG_SESSION_TRAINING,
+            "ex_measured_external",
+            TRAINLOG_LOAD_EXTERNAL,
+            one_rep,
+            training_140,
+            1U
+        )
+    );
+
+    CHECK(
+        insert_reps_session(
+            database,
+            "se_max_external_old",
+            "2026-09-02T18:00:00+02:00",
+            TRAINLOG_SESSION_MAX_TEST,
+            "ex_measured_external",
+            TRAINLOG_LOAD_EXTERNAL,
+            one_rep,
+            external_110,
+            1U
+        )
+    );
+
+    /*
+     * 115 kg x 0 is a failed attempt. The newest successful measured result is
+     * 105 kg while the older historical measured record remains 110 kg.
+     */
+    CHECK(
+        insert_reps_session(
+            database,
+            "se_max_external_new",
+            "2026-09-03T18:00:00+02:00",
+            TRAINLOG_SESSION_MAX_TEST,
+            "ex_measured_external",
+            TRAINLOG_LOAD_EXTERNAL,
+            failed_then_one,
+            external_latest,
+            2U
+        )
+    );
+
+    CHECK(
+        trainlog_database_list_exercise_performance(
+            database,
+            "ex_measured_external",
+            points,
+            16U,
+            &count
+        ) == TRAINLOG_STATUS_OK
+    );
+
+    CHECK(count == 3U);
+
+    CHECK(
+        points[0].session_type ==
+        TRAINLOG_SESSION_MAX_TEST
+    );
+
+    CHECK(
+        points[2].session_type ==
+        TRAINLOG_SESSION_TRAINING
+    );
+
+    CHECK(
+        trainlog_measured_max_summarize(
+            points,
+            count,
+            &summary
+        ) == TRAINLOG_STATUS_OK
+    );
+
+    CHECK(summary.test_count == 2U);
+    CHECK(summary.successful_test_count == 2U);
+    CHECK(summary.found);
+    CHECK(summary.has_record);
+
+    CHECK(
+        strcmp(
+            summary.current.session_id,
+            "se_max_external_new"
+        ) == 0
+    );
+
+    CHECK(
+        summary.current.weight_kg >
+        104.99
+    );
+
+    CHECK(
+        summary.current.weight_kg <
+        105.01
+    );
+
+    CHECK(
+        summary.current.metric_value ==
+        1
+    );
+
+    CHECK(
+        summary.record.weight_kg >
+        109.99
+    );
+
+    CHECK(
+        summary.record.weight_kg <
+        110.01
+    );
+
+    CHECK(
+        trainlog_measured_max_working_load(
+            &summary.current,
+            80.0,
+            2.5,
+            &working
+        ) == TRAINLOG_STATUS_OK
+    );
+
+    CHECK(
+        working > 84.99 &&
+        working < 85.01
+    );
+
+    CHECK(
+        insert_reps_session(
+            database,
+            "se_max_assistance_old",
+            "2026-09-02T19:00:00+02:00",
+            TRAINLOG_SESSION_MAX_TEST,
+            "ex_measured_assistance",
+            TRAINLOG_LOAD_ASSISTANCE,
+            one_rep,
+            assistance_30,
+            1U
+        )
+    );
+
+    CHECK(
+        insert_reps_session(
+            database,
+            "se_max_assistance_new",
+            "2026-09-03T19:00:00+02:00",
+            TRAINLOG_SESSION_MAX_TEST,
+            "ex_measured_assistance",
+            TRAINLOG_LOAD_ASSISTANCE,
+            one_rep,
+            assistance_35,
+            1U
+        )
+    );
+
+    CHECK(
+        trainlog_database_list_exercise_performance(
+            database,
+            "ex_measured_assistance",
+            points,
+            16U,
+            &count
+        ) == TRAINLOG_STATUS_OK
+    );
+
+    CHECK(
+        trainlog_measured_max_summarize(
+            points,
+            count,
+            &summary
+        ) == TRAINLOG_STATUS_OK
+    );
+
+    CHECK(
+        summary.current.weight_kg >
+        34.99
+    );
+
+    CHECK(
+        summary.current.weight_kg <
+        35.01
+    );
+
+    CHECK(
+        summary.record.weight_kg >
+        29.99
+    );
+
+    CHECK(
+        summary.record.weight_kg <
+        30.01
+    );
+
+    CHECK(
+        trainlog_measured_max_working_load(
+            &summary.current,
+            80.0,
+            2.5,
+            &working
+        ) == TRAINLOG_STATUS_INVALID_ARGUMENT
+    );
+
+    CHECK(
+        insert_reps_session(
+            database,
+            "se_max_none_old",
+            "2026-09-02T20:00:00+02:00",
+            TRAINLOG_SESSION_MAX_TEST,
+            "ex_measured_none",
+            TRAINLOG_LOAD_NONE,
+            reps_20,
+            NULL,
+            1U
+        )
+    );
+
+    CHECK(
+        insert_reps_session(
+            database,
+            "se_max_none_new",
+            "2026-09-03T20:00:00+02:00",
+            TRAINLOG_SESSION_MAX_TEST,
+            "ex_measured_none",
+            TRAINLOG_LOAD_NONE,
+            reps_15,
+            NULL,
+            1U
+        )
+    );
+
+    CHECK(
+        trainlog_database_list_exercise_performance(
+            database,
+            "ex_measured_none",
+            points,
+            16U,
+            &count
+        ) == TRAINLOG_STATUS_OK
+    );
+
+    CHECK(
+        trainlog_measured_max_summarize(
+            points,
+            count,
+            &summary
+        ) == TRAINLOG_STATUS_OK
+    );
+
+    CHECK(
+        summary.current.metric_value ==
+        15
+    );
+
+    CHECK(
+        summary.record.metric_value ==
+        20
+    );
+
+    trainlog_database_close(
+        database
+    );
+
+    return true;
+}
+
+int main(void)
+{
+    CHECK(
+        test_measured_max_semantics()
+    );
+
+    (void)printf(
+        "PASS measured_max\n"
+    );
+
+    return 0;
+}