Best Gym HIIT Classes | ONYX Gym & Fitness
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Onyx Class HIIT

About our HIIT class

HIIT (High-Intensity Interval Training) is one of the best types of training if you want to burn calories FAST! In our HIIT classes, you’ll alternate between intense bursts of activity and short recovery periods, ensuring your heart rate stays elevated and your muscles are constantly challenged.

Whether you’re a seasoned athlete looking to amplify your fitness routine or a beginner seeking an effective and time-efficient workout, our HIIT class led by our experienced ONYX Coaches are the perfect fit for you!

What can I expect from this class?

  • Improved stamina and a high cardiovascular workout
  • A structured combination of exercises to improve your strength, power, and endurance
  • When consistently taken and paired with a nutritional and balanced diet can help to promote fat loss over time
  • Modifications and progressions for exercises based on fitness levels
  • A supportive and motivating group environment

Why choose this ONYX class?

Unleash your potential with our HIIT class, a dynamic fusion of high-intensity movements and brief recovery periods. This exhilarating workout accelerates metabolism, boosts endurance, and incinerates calories efficiently. This class lets you experience a vigorous routine that produces remarkable results in record time!

We have a huge range of classes to suit all levels

Strength & Conditioning

Strength & Conditioning classes aim to improve overall fitness and performance by integrating exercises that target strength, endurance, agility and power.

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Learn the basics of boxing, whilst getting in fighting fit shape! Aimed at all experience levels, this is a high intensity class to get your heart racing and calories burning FAST!

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Our Strength class is a dynamic and challenging workout designed to enhance muscular strength, endurance and overall fitness.

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This type of class aims to tone, lift, and shape the buttocks while also engaging other supporting muscles in the lower body.

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Frequently Asked Questions

Make sure to bring a towel, bottle of water and wear comfortable gym clothing. We will provide all other equipment and have mats available to use.

Our HIIT classes are smaller and limited to just 12 participants. This allows our Coach to spend more time with each participant.

Yes, you will need to prebook into the class using the GymMaster app or on our Member Portal. You will just need to click on “Book a Class”. If you’re not sure how to do this, please see one of our staff at reception.

You have up to 30 minutes before a class to cancel your booking. You can cancel your booking on the GymMaster app. If you cannot cancel within the app, please give us a call or send us an email to let us know you won’t be able to make it, so that we can free up the spot for someone else to participate.

Yes, our HIIT class caters to beginner to intermediate participants. If you are inexperienced. Please let our instructing Coach know before your class!

You will need to have medical clearance from your doctor or health professional before participating in one of our group classes. If you have any limitations or recommendations from your health professional, please arrive 5 minutes early to discuss this with our Coach running the class.

Once you have checked in at reception or one of our after-hours doors, please head to our turfed functional training area where you can start with some light stretching until the class starts.

Yes, absolutely! You can bring a friend along to join our classes. If they are an ONYX Member or Fitness Passport member, it’s free for them. Please just ensure they book in via the app. If they are not a member, they can pay a $20 casual fee to participate. Please try to inform us in advance so we can book them in as well.

Yes, doing our HIIT classes can improve stamina by challenging your cardiovascular system and muscles, making them more efficient over time.

HIIT training is a very effective exercise method to promote fat loss and generally results in greater fat loss when compared to endurance training when performed for an equal amount of time. It also has a greater impact on metabolism and muscle preservation. However, to lose fat it is also essential to follow a consistent weight loss diet!