Fig. 1. The Push Up Plus Exercise (A) the subject places their hands shoulder-width apart and their feet are placed on the mat with their knees at a distance from their hands equal to 75% of their height.When asked to assume the warm-up position, the subject will raise their knees off the floor, extend their legs, and assume a push-up position with their elbows fully extended.When you signal the start of the exercise, the subject should immediately push off the floor with their palms, keeping their shoulder blades as far back as possible.