Why I do it: Plank is hard, and elbow plank is hard, but moving from one to the other is even more challenging, which is why this exercise is so effective at strengthening my upper body.
- Begin in a full plank. Lower your right elbow to the mat and then your left, coming into an elbow plank.
- Put your right hand on the mat and straighten your right elbow. Do the same on the left to return to a full plank.
- This counts as one rep.
Image Source: POPSUGAR Photography