Muscle outlines from Body Muscles by Ivan Vulović, Apache 2.0 — regrouped and recoloured for Muscle Train.
Sit with legs extended, then bend knees and bring soles together, allowing knees to drop. Hold feet and gently pull towards body. Maintain a straight back, lean forward from hips, and hold for 20-30 seconds. Release.
Keep back straight. Let gravity assist knee drop; avoid forcing. Breathe deeply. Use a cushion under knees if needed. Best performed post-workout.
MuscleTrain is actively being built. If something looks broken, or you have a suggestion, let us know — it really helps shape the app.