trainlog/docs/reviews/training_knowledge_v1_scientific_review.md

TRAINING KNOWLEDGE V1 — final scientific review

Date: 2026-09-09. Result: PASS within the documented scope and uncertainty. No blocking scientific correction or confidence downgrade is required.

This bounded review assessed the six canonical scientific catalogs against the previously researched source corpus, reviewed staging interpretations and schema_supplement.json. It also inspected the generated BODY ZONE audit, docs/domain/ synthesis and Android's resolved-versus-conditional query guard. It is a scientific review, not a build, persistence or UI validation report. No production code, canonical catalog, database or persisted relation was edited by this review.

Coverage and fidelity

Canonical collection	Count	Finding
Scientific references	23	Bibliography, identifiers, source types, limitations and claims preserved
Functional muscle entities	53	Muscles, regions and groups remain distinct; membership overlap documented
Joint actions	35	Actions, joint complexes, nominal planes and non-exhaustive contributors preserved
Movement patterns	26	Authored conventions, French names, zones and anti-motion distinctions preserved
Exercise identities	23	17 resolved families, 4 conditional candidates, 2 unresolved warm-ups
Equipment identities	41	38 supplied and 3 custom; manufacturer and model remain null throughout
BODY ZONE audit rows	23	16 confirmed, 4 questionable, 3 unresolved; no proposed mutation

Scientific fields compare equal to the settled staging data plus the reviewed supplement after ignoring array order. References compare equal under the canonical field renaming. The rotary-torso compatibility representation follows representation-decisions.md: a symmetric UUID association marked catalog_compatible_not_observed_occurrence does not assert observed history.

The exercise confidence distribution is 6 high, 11 moderate and 6 uncertain. The equipment scientific-status distribution is 21 scientifically_documented, 17 mechanically_identified_anatomy_incomplete and 3 equipment_identity_uncertain. Scientific documentation of a generic machine family does not certify its local model, trajectory or calibration.

All six high-confidence exercise mappings

Here high applies to the explicitly limited movement-family interpretation: the relevant action, plausible muscle roles and coarse BODY ZONE projection. It does not assert measured local force shares, a known manufacturer, exact resistance curves, equal adaptation or transferable MAX. The source hierarchy supports these bounded claims without requiring an EMG study for every simple anatomical action.

Stable exercise ID	Identified variant and equipment	Actions, roles and zones	Evidence assessment
ex_01ff06dd-ad00-46ee-9b46-ed32cabedbef	Hip adduction; recorded hip_adduction context	Resisted hip adduction; adductor group; thighs	High retained. Established adductor function supports the family mapping; individual contributions depend on hip/knee position.
ex_1872246a-39ae-44dc-b58d-f87e90ca49ab	Leg extension; recorded leg_extension context	Knee extension; quadriceps; thighs	High retained. Rectus femoris/vasti distinction and alignment/hip-angle limitations are explicit.
ex_617007f9-7420-4408-91b9-8ffb77900f13	Seated Leg; recorded seated_leg_curl establishes curl interpretation beyond the ambiguous label	Knee flexion; hamstrings with possible gastrocnemius assistance; thighs	High retained. Equipment provenance identifies the variant; no name heuristic or identity merge.
ex_a1ef5047-b44b-4c64-a6ed-c7a3bc13b163	Seated leg curl; recorded seated_leg_curl	Knee flexion; hamstrings with gastrocnemius assistance; thighs	High retained. Hip-flexion length effect is confined to biarticular hamstrings; no outcome equivalence claimed.
ex_d7398d9f-d928-4d2e-94e9-74e201da55c5	Prone leg curl; recorded prone_leg_curl	Knee flexion; hamstrings with position-dependent gastrocnemius assistance; thighs	High retained. Prone/seated context remains distinct, without an unverified exact hip angle.
ex_ec619fc2-4685-4044-873c-86764bd4a0fe	Arm curl; recorded arm_curl	Elbow flexion; biceps/brachialis primary, brachioradialis secondary, plausible forearm stabilization; arms	High retained for qualitative family roles. Grip/shoulder support limitations prevent a universal quantitative ranking.

The first five rows use established lower-limb anatomy. OpenStax's main text identifies the adductors, knee extensors and knee flexors and distinguishes lower-leg plantarflexors. Inconsistent image alternative text is not used to reverse an anatomical action. OpenStax lower-limb anatomy

The seated/prone curl distinction also has an intervention source which explicitly considers biarticular hamstrings and biceps femoris short head. Its longitudinal finding is not generalized to all people, machines or strength tasks. Maeo and colleagues

The curl mapping is supported by the anatomical elbow-flexor and forearm functions. Its primary/secondary labels are qualitative exercise interpretation, not ratios established by the textbook. OpenStax upper-limb anatomy

Representation checks

• Custom Chest press, Converting chest press and Abdominal retain interpretation: null. Their useful candidate interpretations remain explicitly conditional and uncertain. Chest candidates include the reviewed pectoralis_major / horizontal_push interpretation only under stated execution assumptions.
• Marche retains a conditional gait interpretation, without creating an occurrence-to-treadmill association or assigning a persisted full-body zone. Both generic warm-up identities have neither ordinary nor candidate mapping.
• Rear Delt is linked to its actual UUID on the combined apparatus. Pec Fly is a separate unlinked capability. Assisted dip and assisted chin/pull-up are separate unlinked capabilities with empty actual exercise-ID lists. No capability or legacy manifest slug becomes a phantom exercise identity.
• The four added aggregates preserve member and overlap semantics. The functional hip-flexor and spinal-stabilizer groups are non-exhaustive. Their action lists describe member capabilities, not actions shared by every member. Anatomical regions remain muscle_region.
• Action contributors are non-exhaustive; missing a possible contributor does not claim absence of participation. Nominal planes are not trajectory constraints. Anti-extension, anti-rotation and lateral stabilization have no invented dynamic joint action and remain authored task conventions.
• Manufacturer/model fields are null for every physical identity. Example manufacturer references remain mechanics/identification examples rather than anatomical outcome evidence or local equipment identification.
• EMG findings remain distinct from intervention evidence and do not establish force shares, hypertrophy rankings or universal primary-muscle status. Vigotsky and colleagues
• BODY ZONE audit confirmed means the existing coarse projection is scientifically compatible under the stated interpretation. It does not certify observed technique. questionable preserves conditional geometry or identity; it is not a direction to mutate persistence.
• Android's inspected ordinary query path obtains only resolved_family_variant_limited interpretations. Conditional/null records cannot enter ordinary muscle, pattern or scientific-zone matches through that guard. Broader runtime behavior remains the engineering review's scope.

Remaining uncertainty and handoff

Exact local manufacturer/model, resistance curves, range settings and detailed trajectories remain unresolved. Custom apparatus require actual execution confirmation. Back Extension requires pelvic-restraint and spinal-versus-hip motion evidence. Row/pulldown contributions depend on arm path and support; hip-abduction contributions depend on hip angle. Rotary torso compatibility must not be presented as a historical occurrence. Missing Pec Fly and assisted exercise identities require real catalog creation or identity evidence before linkage. Generic warm-ups require their actual activity sequences.

The scientific foundation supports contextual MAX interpretation only. Assistance is not external resistance; no conversion, estimated 1RM, percentage prescription, universal recovery duration or exercise-equivalence guarantee is justified by these catalogs.

These uncertainties require observation or future scoped research. They do not require xhigh escalation solely because the catalog is large. Scientific implementation handoff: preserve the reviewed distinctions and current confidence levels, and complete engineering validation separately. No BODY ZONE migration is recommended.

Reviewed catalog content hashes

SHA-256 values identify the exact reviewed catalog bytes. A subsequent change to scientific fields requires a bounded delta review.

File	SHA-256
science-references-v1.json	ceef31455e0c1da1bc383d4b3a7dc63198cfb62ba0f80e26bc79bae77abb7836
muscles-v1.json	21cb08c9c2ca393d5c87cf73a607175b7c267061687767912a0c92769be5ff4b
joint-actions-v1.json	a66737f4419bcc4040d0abe5ca525b2a185e80f0bcf679091222eb540b3fd8a1
movement-patterns-v1.json	ddd4e3522ebcb4df4618ed2a952fdb5834c42e21e7220a0afd69ab8f3437f072
exercise-knowledge-v1.json	30ee4f400626af9a39c0547ae28360db94e76736462501e113f57721429ef43f
equipment-knowledge-v1.json	b96ca23026fa1f0eb94bc8c0b2a586951130919db5342ee5d60ff1353725acb2

Subsequent representation verification

The authored BODY ZONE audit was subsequently embedded in each exercise record so both platforms and the audit generator can read it from the canonical source. An automated comparison verified that removing only body_zone_audit reproduces the exact reviewed exercise-catalog SHA-256 above. All 23 embedded annotations also equal the reviewed audit data after the documented status and array-order normalization. No scientific assertion or confidence changed. The complete exercise catalog now has SHA-256 a2c72e4743dc5dc24d1a7bbf9e8234442adc2d5ef6882f15cadea1cb9629d647.