This one is not for the faint-hearted! (Or for a bad day - ha!). You can use a paper plate under each foot or a towel under both feet if you're doing this at home. Get ready to work your body head to toe and TORCH calories!

Bust out this series for 45-90 seconds at a time for 3-5 sets to take your HIIT circuit and total body workout to the next level!

Tips on form:
- Keep your hips at shoulder level in plank position.
- Squeeze your glutes, guads and lower belly.
- Pull your shoulders down your back to engage your lats.
- When you do the knee tuck, your hips should stay in one spot, (they should not fall when you pull your knees in).

Let me know what other exercises you throw into your total body HIIT circuit on IG/TW: @cassiebstrong #BStrong!

B Strong,

Cassie B.