Muscle outlines from Body Muscles by Ivan Vulović, Apache 2.0 — regrouped and recoloured for Muscle Train.
Adjust rings to height. Grip rings, lean forward, arms extended out sides (soft elbows). Bring arms together to chest front. Pause at peak, return slow to start. Repeat.
Engage core always. Controlled—no swinging; full range for chest. Avoid: Rushing speed, arms too low (shoulder stress).
MuscleTrain is actively being built. If something looks broken, or you have a suggestion, let us know — it really helps shape the app.