Plank to push up
Start in a plank position on your elbows as described above Hold your body in a straight position and straighten your right arm then your left so that you are resting on your hands and toes with elbows locked out in pushup position. Keep your back straight and avoid lifting your hips. Tighten the abdominal muscles to avoid your hips from moving side to side during the movement. Lower back into a plank position and repeat starting with your left arm.
2 sets 6 reps per arm