Improving your plank exercise with upper body rotation. Elbows stays at 90 degree hold, moving side to side.

Here I'm explaining how to improve your plank exercise by pushing off the floor while 1 arm is in a forearm plank position.

Here I'll explain how to make the forearm plank exercise much more effective by incorporating movements of the arms.

4 steps to make the traditional plank exercise more effective by contracting muscles in a plank position.