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.
- Plank to Pushup
- Bicycle Crunches
- Curtsy Lunges (Speed Skaters for advanced)
- Mtn Climbers
- Jumping Jacks (High knees for advanced)
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