HIIT [ 40 sec ON / 15 sec OFF ] Switch exercise at each interval. Repeat the circuit 4 times. Take 1 min rest between each circuit.

List of exercises:
- Side-to-side surfer squat jumps
- Squat hold
- Curtsy to squat
- Inchworm + knee-to-elbow 2 times
- Bear crawl (forward & backward)
- Lunge right knee up
- Lunge left knee up
- Plank twist