Muscle outlines from Body Muscles by Ivan Vulović, Apache 2.0 — regrouped and recoloured for Muscle Train.
Start in a push-up position, body in a straight line. Place fists shoulder-width apart, knuckles down. Engage your core, lower chest towards the ground, keeping elbows close. Extend arms to return to the starting position. Repeat.
Align wrists with forearms. Maintain a tight core. Start on a softer surface if needed. Focus on controlled movements. Inhale on descent, exhale on ascent. Adjust fist position or use push-up bars if wrists are uncomfortable.
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