Swimmers, pitchers, tennis players, and people who perform frequent overhead arm movements might experience rear deltoid muscle pain or discomfort. Rear deltoid exercises don’t just bulk up your ...

The deltoid muscle has three distinct parts: the anterior (front), lateral (side), and posterior (rear) deltoid. Each part contributes to different arm movements: Injury to any of these three ...

Make sure you’re balancing out your ‘pushing’ movements with your ‘pulling’ movements for both shoulder health and posture. Focus on rear delt flyes.' In order to build muscle mass ...