89 structures across four layers — every muscle, bone, fascial line and ligament that actually changes how you train. Toggle a layer, then tap anything.
LAYERS
front
back
Full index
ARM
BACK
CHEST
CORE
FOOT
HIP
LOWER LEG
NECK & HEAD
SHOULDER
SPINE
THIGH
Note: A training reference, not a medical atlas. Shapes are schematic and grouped the way we program them, and this covers the structures that matter for training — not all 600+ muscles or 206 bones. For pain, injury or rehab, work with a physiotherapist. train@yogiathletics.com