C CLOSE-GRIP MEDICINEBALL PUSHUP Get into pushup position, resting both hands on a medicine ball . Lower your body until your chest gently touches the ball , then push yourself back to the starting position. That's one rep.
D PRISONER SQUAT Stand with your feet shoulder-width apart and your hands behind your head . Keeping your lower back in its natural arch, squat down as low as you can , then rise back up. That's one rep.