What is it?

Grit class is a fun and challenging high-intensity class. It is designed to challenge your co-ordination, aerobic fitness levels and mental toughness. The workout completed in the class helps tone the body fast using effective HIIT training to activate what is known as the the epic effect. This means you will be exhausted after the workout but will continue burning lots of calories for up to thirty minutes after the class. In this class you can burn up to 400 calories and more – the same calorie burn that our classes Tone and TRX Combo also offer.

There are three variations of the class to keep you on your toes but all offer the same great cardio and calorie burning results!

westpark fitness les mills grit class

Grit Cardio: focus on speed of repetitions to spike heart rate

westpark fitness les mills grit class

Grit Plyo: focus on explosive movement to spike heart rate

westpark fitness les mills grit class

Grit Strength: focus on full range of motion to spike heart rate

The science behind Les Mills Grit

There’s no disputing it. It’s scientifically proven that this Les Mills Grit class works. HIIT cardio training drives you to burn calories for hours after the workout, increase aerobic fitness, activates the fast-twitch muscle fibers and grows lean muscle tissue which increases fat burn. Don’t just take our word for it, try the class for yourself and you are sure to feel the benefit and see the results.


30 – 60min

Select the day below to see the times & durations:

Frequently asked questions

All you need to know about this class

How fit do I need to be to do Les Mills Grit?

This workout is designed to challenge YOUR fitness. Exercise modifications allow everyone to push their individual limits.

How many times a week should I do this class?

Les Mills Grit is designed to complement your training schedule. Completing the class twice a week is sure to bring you noticeable results/

What should I bring to the workout?

Wear your usual workout clothes and bring a water bottle, a towel and a hugely positive attitude! We’ll do the rest.

Can I still do Les Mills Grit if I am pregnant?

No, women are advised to reduce their exercise intensity during pregnancy so high-intensity interval training (HIIT) is not recommended. We suggest talking to your doctor if you have any more questions about exercising while pregnant.

Why is the class based on movement to blocks of time, as opposed to working on the beat?

Movement to blocks of time allow you to complete maximum repetitions which allow a focus on power training – maximising muscle output to hit top-end training zones. The music is an integral part of the class, but doesn’t necessarily dictate the pace. As you work to your own individual max effort, you can really push your limits – and that’s a fundamental component of this Grit class. So if moving in time to music isn’t your thing, don’t stress, it is simply there to motivate you (not confuse you). The great thing is for people who love moving to the beat is that it’s definitely still an option as the music also provides you with a base tempo to move to.

How do we select the music for the class?

Music selection is an extensive process that involves searching through music for hours and hours to find specific beats per minute and beats that stay true to the essence of the class program. It is then fine-tuned (speeding up, slowing down or extending pieces of music) to adapt it to fit the class workout and to include sound effects to emphasise key moments. We obsess over these details to turn a good fitness experience into an amazing one. Les Mills Grit is based on time intervals so we also need to select (or create) pieces of music that fit perfectly with the work and recovery times for each block of work. You also need different music to motivate you through each stage of the workout, so the music in each block is chosen to push you to your max – and then to bring you down to reset and rest in the breaks and recoveries.

Is Les Mills Grit safe?

All of the class workouts are designed with set exercises that have safety and science at their core. They’ve all been tried and tested for safety and results. If you have any specific health concerns, check with your doctor before doing a Less Mills Grit class workout.


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