Muscle outlines from Body Muscles by Ivan Vulović, Apache 2.0 — regrouped and recoloured for Muscle Train.
Band anchored chest-high. Face away, one handle each hand. Step forward tension, feet shoulder-width. Arms out sides (soft elbows/palms forward), core tight/soft knees. Arc hands together chest-front (slight elbow bend). Squeeze chest peak. Return slow controlled.
Secure anchor. Slight elbow bend always (joint relief). Squeeze chest on meet. Slow/controlled for engagement. Step farther for more tension. No elbow lockout. Exhale together, inhale return. Proper tension from start. Elbows level (chest focus). Shoulders down/back. Hands wide arc (chest tension). Core stable for balance/form.
MuscleTrain is actively being built. If something looks broken, or you have a suggestion, let us know — it really helps shape the app.