Muscle outlines from Body Muscles by Ivan Vulović, Apache 2.0 — regrouped and recoloured for Muscle Train.
Plank, hands wider than shoulders. Straight head-heels, core/glutes tight. Bend elbows out, lower chest near floor (90° elbows). Press palms to extend arms. Repeat form-perfect.
Hands wider than shoulders (chest target). Straight line head-heels, core tight. Controlled descent (no chest touch); breathe in down/out up. Knees if needed, build to full.
MuscleTrain is actively being built. If something looks broken, or you have a suggestion, let us know — it really helps shape the app.