Plank With Shoulder Tap Why I do it: This plank variation strengthens the upper body and core, and is good practice for strengthening and balancing in handstand walks. Begin in a plank variation with your feet slightly wider than your hips for added stability. Keeping your torso stable, bring your right hand to your left shoulder, then return your right hand back to the mat. Bring your left hand to your right shoulder and return it to the mat. This counts as one rep. Image Source: POPSUGAR Studios