1 - Start in a high plank position with your hands under your shoulders, legs extended, feet about hip-width apart, and body forming a straight line from head to heels.
2 - Brace your core, squeeze your glutes, and avoid letting your hips sag or rotate.
3 - Lower one forearm to the floor, then lower the other forearm so you are in a forearm plank position.
4 - Press one hand into the floor and straighten that arm, then press through the other hand to return to the high plank position.
5 - Keep your torso as stable as possible throughout the movement and avoid rocking side to side.
6 - Repeat for the desired number of repetitions or duration, alternating the lead arm each rep.
