Muscle outlines from Body Muscles by Ivan Vulović, Apache 2.0 — regrouped and recoloured for Muscle Train.
Get into a push-up position: hands slightly wider than shoulder-width, palms level with your chest, body straight. Lower yourself until your chest touches the floor or nearly does. Press yourself up, keeping your body in position. Repeat for the required number of reps.
Keep your torso straight and don't let your lower back sag. Don't flare your elbows as you press up. Try not to raise your shoulders, especially on the last reps of each set. Keep your head neutral: don't look straight ahead, look slightly forward, about 15–20 degrees. Press up as you exhale and lower yourself as you inhale.
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