Muscle outlines from Body Muscles by Ivan Vulović, Apache 2.0 — regrouped and recoloured for Muscle Train.
Get into a push-up position with your hands on the parallel bars, ideally slightly wider than shoulder-width apart. Lower yourself deep by bending your elbows: your shoulders should end up level with the bars or slightly below. Hold this position, then smoothly straighten your arms, keeping your body straight. Repeat for the required number of reps.
To start, try to find low parallel bars: it's easier to get into the starting position and to get off them. If the bottom position feels uncomfortable or you lack flexibility, start with a partial range of motion and gradually increase it.
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