HUMAN BODY ATLASSTATIC ANATOMY REFERENCE
Anatomy · educational movement

SOURCE EXTERIOR / REPRESENTATIVE SHAPE

Explore an approximate body shape.

External outline only · no fitted internal anatomy

BODY PARTS 3D / MALE REFERENCE

Explore the body. Layer by layer.

Static male reference · 713 selected source objects

AB09 / SOURCE MODEL + RECORDING

Study the recorded squat.

Source bone display · first observed squat sequence

19 source display geometries · 2 facets are boundary references, with no filled patch

AI-SEGMENTED INDIVIDUAL REFERENCE / 001

Explore the torso-fat surface.

A separate donor · source label 35, not the anatomy body

Source Torso-fat · individual AI-derived reference, not a personal fat estimate

MOTION CAPTURE / ACTUAL RECORDING

Watch the recorded
walking landmarks.

24 skin markers · illustrative connections, not bones

Loading source anatomy…
Layers ↗

Bones loading · other source layers load when requested

Rose marks muscle tissue, with no available measurement.
Rust → amber overlays only four right-leg recording channels.
Unmeasured does not mean inactive.
Bone, skin, teal cartilage, sand connective, muted-gold neural, muted-red artery and violet gland colours mark static source references, never activation or flow.
Colour range 0–100%MVC; displayed values remain uncapped.

Actual source translation retained · skin landmarks, not anatomical mesh motion
Geometry stays still. The timeline changes recorded signals, not anatomical pose.

SOURCE-NATIVE POSE / SAME-RECORDING RAW EMG

Recorded time 0.000 s

Source row 0
LeftRightSource recording loading…

· Signed voltage, not activation, %MVC or force. Each sensor pair has its own displayed scale.

What these signals mean

Unfiltered raw voltages share the pose recording’s timestamps. Acquisition at 1,259 Hz was published after upsampling to 2,000 Hz. Biceps femoris sensor heads are unresolved; medial gastrocnemius is distinct from the walking record’s lateral head. Amplitude is not a comparison of effort across muscles. Clipping cannot be established without hardware limits. All 6,501 stored samples are retained and drawn; cursor values use the exact raw sample at the source pose time.

WALKING / RAW SIMULTANEOUS RECORDING

Landmarks + signed EMG 0.000 s

Participant1 / V4 / T2
Common overlap 0–3.02 s
signed V · simultaneous raw source time
0 s3.02 s

Source200Hz markers /2000Hz EMG · shared timestamps · playback stops at the boundary, no endpoint smoothing

WALKING / ONE MEASURED STRIDE

Right-leg surface EMG Stride phase 0%

4 km/h · reference participant
0.000 / 1.040 s
Tibialis anteriorSurface EMG envelope · %MVC
01000%100%
%MVC = recorded EMG relative to the source’s maximum voluntary contraction reference.Electrical amplitude ≠ muscle force. BF is a surface sensor group, not separate head measurements.

Moreira 2021 · Participant1 / V4 / T2 / right St1 · source-normalised %MVC

This hosted copy includes the active browser study and its licences. Editable source and review evidence are retained in the original archive.

SOURCE NOTES

Source references,
with clear limits.

An earlier donor torso-fat study is retained in the original archive. It is not part of this hosted three-mode copy.

These are authentic BodyParts3D meshes and separate recorded datasets. Educational Movement poses the same partial source anatomy with an authored visual rig; it is not registered to the recorded walking or AB09 models and does not show measured activation.

Anatomy & rights

BodyParts3D release 4.0, official ISA obj_99 source: 99% polygon reduced. Raw source units are millimetres; the editable Blender source and GLB explicitly convert to metres. Smooth shading and study colours are derived. No surfaces were subdivided or fabricated.

BodyParts3D, © The Database Center for Life Science, licensed under CC Attribution 4.0 International. Original OBJ comments retain the historical BY-SA2.1Japan notice; the current 2025 archive grant and original source bytes are preserved.

Current official asset licence ↗ · Source/member/hash ledger · Editable Blender source
Selected source coverage

198 bone objects, 360 muscle objects or parts, one skin surface, 34 cartilage/disc objects, 17 other-connective objects, 30 nerve/ganglion references, 71 artery references and two lacrimal gland references. These 713 source-object/part counts are not normal human structure totals. The prior 67 unresolved objects, seven first-tissue exclusions and 97 further held records are not rendered. Every added tissue category remains partial.

Excluded coverage includes extensor carpi ulnaris, flexor digitorum superficialis, digastric and hyoid, plus intercostal/pelvic representations, hand sets and foot sesamoids. Their part/group identities or overlapping representations need further review. No fat layer or verified female body is supplied.

Added cartilage/disc, other-connective, neural, artery and lacrimal reference surfaces use the same BP3D static male source frame. The nerve/ganglion and artery layers do not map every peripheral path or vessel, and two lacrimal objects do not make an organ atlas. No new layer carries recorded activation, flow or secretion. In Educational Movement these same selected source objects use approximate source-derived rig weights. They remain separate from the donor-fat, exterior and recorded movement models. One original smooth-normal corner on the right stylohyoid ligament is retained as a source-lighting limitation; the 103 new objects have no such exception. Original topology is retained; source positions are converted to metres and float32.

103 selected objects and 97 held records · 103-source fidelity check · Editable 103-object source · First added-tissue selection and seven exclusions · Independent source fidelity check · Editable added tissue source
Excluded source names and IDs
    Complete selection and exclusion ledger · Source-to-export coordinate audit · Whole-body editable Blender source
    Educational Movement source and limits

    Fourteen authored movements, including illustrative walking and running cycles, pose the same 713 partial BP3D source objects and eight anatomy layers. Walking and running loop at an authored seam; the other twelve examples stop at their endpoint. Rig pivots and visual weights are reconstructed for study, not measured attachment footprints or clinical mechanics. Warm role colours represent reviewed qualitative exercise roles; cool colours mark passive stretch targets. Unhighlighted muscles may also participate. This phase is not recorded time, and no colour gives EMG magnitude, force, strain or personal activation. The BP3D poses are not registered to the Moreira or AB09 recordings.

    The source-rest GLB geometry and FJ/FMA IDs are retained. The editable source includes the visual armature and actions; arbitrary fractional Blender action frames can differ slightly from browser quaternion interpolation. A complete clean-room rebuild has not been certified.

    Current rig and visual-weight ledger · Fourteen authored movements and source roles · 713-object visual mapping · Matching editable Blender source · Construction and rebuild limits
    The recording

    Source-plane angle values loading…

    Participant1, male,25 years,1.81m,66.2kg; walking4km/h. Selected right St1 is1.04s, with1001 paired angle/envelope samples. A300ms RMS envelope and MVC normalisation were applied by the source study. The eight columns in the processed right file represent four muscles across two strides, not eight simultaneous bilateral channels.

    Left same-phase channels remain unavailable. BF is a surface recording group; no independent short-head signal is shown. Playback speed changes viewing time, not the physical walking speed. The source’s unequal start/end values are preserved; playback stops at the end.

    Primary walking study ↗ · CC0 dataset record ↗
    Local software & next stages

    Application code is MIT; Three.js r180 is MIT. All runtime files are local. The earlier recorded-landmark, donor-fat, and recorded-model views remain preserved in the prior portable package and source files; they are not loaded as main study modes here. The separate Moreira stride signal panel remains in Anatomy and is not a measurement of these educational poses. Entered measurements are processed locally. No analytics, accounts or uploads are used. This hosted copy includes browser assets and attribution; editable and raw sources remain in the preserved archive.

    Complete anatomy, sex-specific internal layers, complete fat/measurement fitting and validated recorded anatomical deformation remain unfinished. Movements uses authored reconstructed poses and qualitative muscle roles; its clip phase is not measured time. Illustrative walking and running do not show recorded ground-contact timing, speed, or activation. The static anatomy skin is one source reference. The separate Approximate body shape mode offers estimated exterior fitting; no internal anatomy is fitted. Source-backed educational relationships describe possibilities in study conditions, not a diagnosis or computed injury cascade.

    Application licence · Asset/data/vendor notices · Exact candidate identity