Build strength by working your fast twitch muscle fibers with quick bursts of speed and plyometrics. With challenging moves like plyometric push-ups and power lunges, plan to get nice and sweaty. Sarah designed this HIIT workout with optimized interval blocks to enable your body to burn calories post-workout by entering into a state of EPOC (excess post-exercise oxygen consumption). Be sure to drink plenty of water during and post-workout.

Get ready for a challenging physical and mental HIIT workout. These moves will work your coordination and enable you to develop razor sharp skills in both your body and your mind. Sarah designed this workout with optimized interval blocks to enable your body to burn calories post-workout by entering into a state of EPOC (excess post-exercise oxygen consumption). Be sure to drink plenty of water during and post-workout.

Build up your cardiovascular endurance and strength with this intense HIIT workout. Sarah designed this workout with optimized interval blocks to enable your body to burn calories post-workout by entering into a state of EPOC (excess post-exercise oxygen consumption). Be sure to drink plenty of water during and post-workout.

Fire up that metabolism and burn loads of calories with this intense bodyweight-only HIIT workout. Sarah designed this workout with optimized interval blocks to enable your body to burn calories post-workout by entering into a state of EPOC (excess post-exercise oxygen consumption). Be sure to drink plenty of water during and post-workout.

Take some time for recovery and give your body some much needed TLC with Sarah Kusch. This video is all about repairing your tissues and improving your body awareness. The result? Faster muscle recovery so you can move on to your next challenge and better overall fitness performance.

Keep your body and mind guessing with back to back strength and cardio intervals in this challenging HIIT workout. Sarah designed this workout with optimized interval blocks to enable your body to burn calories post-workout by entering into a state of EPOC (excess post-exercise oxygen consumption). Be sure to drink plenty of water during and post-workout.

Build strength and boost your metabolism with this fun HIIT workout. Sarah designed this workout with optimized interval blocks to enable your body to burn calories post-workout by entering into a state of EPOC (excess post-exercise oxygen consumption). Be sure to drink plenty of water during and post-workout.

This HIIT workout is all about enhancing your performance and building strength through exercises that test and build your agility, speed, strength, and endurance. There's a strong emphasis on the core in this one and the optimized interval blocks will enable your body to burn calories post-workout by entering into a state of EPOC (excess post-exercise oxygen consumption). Be sure to drink plenty of water during and post-workout.

Get ready for a fun HIIT challenge that'll leave you sweating and feeling like you just conquered Everest. Sarah designed this workout with optimized interval blocks to enable your body to burn calories post-workout by entering into a state of EPOC (excess post-exercise oxygen consumption). Be sure to drink plenty of water during and post-workout.