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Cardio training & cardio classes

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member rowing at a gym hiit class

What to expect in a cardio class

Get your heart pumping and energy flowing in our high-intensity cardio workout classes. From HYROX and HIIT to boxercise and cycling, our group fitness sessions are designed for maximum impact and maximum fun.

New to exercise or easing back in? We offer beginner cardio classes and low-impact options, so everyone can get moving, build endurance, and enjoy a great workout.

Find your class today

  • HYROX members participating in a HYROX class

    HYROX

    Combines high-intensity cardio and functional strength training to build serious endurance and push your limits

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  • members stretching at a gym cardio class

    Insanity

    Maximum interval training, short bursts of super intense cardio for optimum fat burning and toning -leave buzzing with endorphins

  • member rowing at a gym hiit class

    HIIT

    Our HIIT class is a total body, heart pumping, aerobic, strength and conditioning workout

  • two members using a bike at the gym

    Cardio blast

    Dynamic mix of aerobic routines and intense cardio exercises is designed to eat up the calories

  • member doing kettlebell squats at a gym class

    20-20 cardio & strength class

    Fire up with 20 minutes of cardio, getting your heart pumping

  • members using ski erg at a gym class

    Amrap

    Designed to push you to your limits and burn calories fast. Expect fast-paced, high-intensity cardio

  • members throwing punches at a gym boxing class

    Bootcamp

    Fast-paced cardio and strength exercises, this interval workout is tough, but great fun too

  • members using the weight sled with a personal trainer

    Circuit

    Combine strength, cardio and functional movements as a circuit of high-intensity exercises

FAQs

1. What are the benefits of cardio classes?

Cardio classes are a fun, high-energy way to burn calories, boost your heart health, and build stamina. Whether it’s Bootcamp, HIIT or Circuit, you’ll get a full-body gym cardio workout that keeps you moving and motivated.

They’re great for improving fitness at any level - and with expert instructors, it’s easier to stay on track. If you’re after real results and a serious endorphin hit, cardio classes are the way to go.

2. Is it better to do cardio or weights first?

It depends on your fitness goals. If you’re aiming to burn fat or boost endurance, starting with a cardio workout can help get your heart rate up and maximise that calorie burn. But if your goal is to build strength or muscle, it’s best to hit the weights first while your energy levels are highest.

At The Gym Group, you can mix and match - try a quick gym cardio session to warm up, then move into strength training, or join a cardio class after lifting to finish strong. Whatever your goal, we’ve got the space and support to help you smash it.

3. What is the best cardio for beginners?

If you’re just getting started, the best cardio is something simple, low-impact, and easy to stick with. Think brisk walking on the treadmill, cycling, or one of our beginner-friendly cardio classes. These workouts help you build fitness without putting too much pressure on your joints.

The key is consistency - start slow, focus on good form, and increase intensity as your fitness improves. At The Gym Group, we’ve got loads of beginner cardio options, plus expert support to help you feel confident from day one.

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* Offer available at selected sites only. See Terms & Conditions for further details. ** 24 hour access not currently available at all Gyms. Please see individual Gym pages for further details. ⨥Applicable terms, conditions and joining fees may apply. © 2025 The Gym Group.