
We put a team of the world’s top trainer talent in a room and asked them to come up with their favorite HIIT challenges. The end result … Nine tough new challenges that will put even the most supreme athlete’s fitness to the test. Ready to give them a go?
Melroy Oostra’s split lunge bench tuck. See how many you can do in 30 seconds.

James Thomas’ double bolt sprint tuck. See how many you can do in 30 seconds.

Erin Maw and Ben Main’s partner slip, push, tap and tuck. Grab a partner and see how many you can do in 30 seconds.

Gina Fito’s switch climber sit through with tricep push up. See how many you can do in 30 seconds.

Bas Hollander’s push up sprint ladder. Measure out five meters and see how far you can climb in 30 seconds.

Natasha Vincent’s agility circuit – burpee, run forward, shuffle tap to the right, back, block jump, ladder back (and repeat to the left). See how many you can do in 30 seconds.

Fagner Pinto’s double heisman butt kick. See how many you can do in 30 seconds.

Vili Fifita’s plyo push up with a triple clap switch. See how many you can do in 30 seconds.

Des Helu’s flying superman butt kick tuck. See how many you can do in 30 seconds.

Ready for more?
Press play on this exclusive LES MILLS GRIT Cardio workout and you’ll raise your heart rate with a full 30 minutes of cardio intensity. With a real focus on agility and lateral movements, this special edition workout has been shaped to highlight the benefits of the new Reebok HIIT shoe and help you take your athletic performance to the next level.
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