This exercises is designed to be performed with resistance tubes or bands. Resistance Tube exercises offer a portable solution for full body conditioning and full range-of-motion training.
Stand with feet hip-width apart on the center of tube and cross it once or twice in front of the body. Then grasp a handle in each hand, with arms by the sides. Crouch down and walk hands forward to assume full push-up position.
Next, shift the body weight onto the left hand and rotate the extended right arm to reach for ceiling, keeping shoulders down.
Pause for three counts, return to push-up position and compete the move on the other side.