- Bring right arm back to right side, then extend it directly up toward sky, rotating torso and lifting left foot off mat to bring left knee toward chest. Extend left leg out to right to briefly touch foot to ground.
- Rotate back to full push-up position. MAKE IT HARDER: Do 10 seconds of mountain climbers between reps when in full push-up, alternately bringing knees into chest as if running.
- Do 12 reps. Switch sides; repeat.
Watch a video demonstration of this exercise