Muscle outlines from Body Muscles by Ivan Vulović, Apache 2.0 — regrouped and recoloured for Muscle Train.
Hands shoulder-width on elevated surface (bench/step). Feet back to straight head-heels line. Core tight, elbows close. Bend elbows to lower chest near surface. Brief pause. Press palms to straighten arms. Repeat.
Stable surface for safety. Straight head-heels line, core engaged. Elbows ~45° (shoulder protection). Controlled speed; breathe in down/out up. Adjust incline height for difficulty. Hands shoulder-width (chest focus). Elbows close (less shoulder strain). No sagging hips (protect back). Neutral neck. Tight core for stability. Consistent full ROM. Feet back for leverage.
MuscleTrain is actively being built. If something looks broken, or you have a suggestion, let us know — it really helps shape the app.