40 seconds of work, 20 seconds of rest. Go straight down the list. 4 Rounds - the only rest you get is the 20 seconds between exercises. This one is all about hustle.
- Mountain Climber Pushups (4 Mtn Climbers + 1 Pushup)
- Plank Leg Raises
- Situp and Twist
- Squat to High Knee
- Lunge to Jump
- Jump Rope (or 10m Sprint Touches)