The "muscle-up" is a difficult exercise, requiring a lot of strength and practice. It's something I've photographed for a long time, but have never been satisfied with the result. It just didn't seem like you could convey what the athletes were doing with a single frame. So after a lot of thought, I decided that in-camera multiple exposure was the answer. It's the only way to show the whole movement and range of motion. Finally satisfied.
Shot on a Nikon D810 and lit with 5 strobes.