Begin in a plank position with your feet in line with your hips.
Lower your body toward the floor, and then push through your arms, returning to plank.
Twist to the left, reaching your left arm to the ceiling without letting your pelvis rise or lower.
Return to plank position, bringing your hand back to the floor, and perform another push-up. When returning to plank, twist to the right, and reach your right arm to the ceiling.
Return back to plank position, returning your arm to the floor. This completes one rep.
Continue for 40 seconds, then rest for 20 seconds.