Muscle outlines from Body Muscles by Ivan Vulović, Apache 2.0 — regrouped and recoloured for Muscle Train.
Inhale, open arms wide. Maintain a slight bend in elbows, lowering hands to shoulder level. Exhale, squeeze chest to return handles.
Maintain a neutral spine and engaged core. Adjust foot position to modify difficulty. Control movements, avoid momentum. Ensure taut straps. Exhale on arm return, inhale on opening.
MuscleTrain is actively being built. If something looks broken, or you have a suggestion, let us know — it really helps shape the app.