The great thing about planks with shoulder taps is all you need is your own body weight. The plank with shoulder taps helps to strengthen your core, glutes, arms, and shoulders. This exercise helps to reduce lower back pain, improves your posture, and tighten your midsection.
1) Start in a plank or push up position with your wrists right underneath your shoulders.
2) Keeping your belly button drawn in and your core engaged touch your left shoulder with your right hand.
3) Alternate sides touching each shoulder 5-12 times while making sure that you are minimizing the movement in your hips as much as possible.
This exercise is great to use as a part of your warm up or insert into the strength component of any workout.