Figure 5.

High plank stability with weight pull. (a) The athlete begins in a high plank position on a foam (unstable) surface. A weighted object (kettlebell) is underneath the upper extremity of the stabilizing arm. (b) While stabilizing on the affected upper extremity, the opposite upper extremity horizontally adducts and reaches for the weight while maintaining proper plank alignment. (c) The weighted object is pulled through horizontal abduction to the opposite side. It is then repeated with the other arm back to starting position.