What is HIIT Workout? A Guide to HIIT in Singapore 2023

“I don’t have time to work out…Even back when I was getting up early to squeeze in a workout, I didn’t see results.” Sounds familiar? If you’ve got a packed schedule and are losing motivation, welcome to the club! Getting fit and healthy is a lot more complicated than most of us realise and it’s all too easy to give up when you don’t see results. Can HIIT workouts change all that?

If you’ve been reading up on health and fitness news anytime over the past few years, you’ve certainly heard a lot about HIIT, or high-intensity interval training. In today’s fast-paced culture, a more effective workout in less time sounds like a dream come true. But, before you hit the gym, let’s take a moment to separate fact from fiction on the HITT trend.

What Is HIIT?

Fast, better, harder! HIIT workout routines are all about maximising every second to get the very best results from the quickest possible sweat session. It’s a training strategy that runners have been using for the past century as they’ve alternated between jogging and sprinting to boost their endurance. Over the past decade, fitness physiologists have released a long line of studies showing the promising results of HIIT workouts and it’s been garnering attention around the globe.

It’s crucial to note, however, that HIIT doesn’t simply mean alternating between a fast and slow pace. “There’s a strict definition of HIIT in terms of heart rate,” said Todd Astorino, a kinesiology professor at California State University San Marcos. When researchers are talking about HIIT, they mean working at 80+ per cent of your maximum heart rate and then resting or moving to low-intensity workouts. Only this exact style of workout qualifies as HIIT.

Are HIIT Workouts Effective?

Overall, yes. If you are looking for a workout that will give you the best results in the shortest amount of time, HIIT is a winner. According to the American College of Sports Medicine, HIIT workouts were chosen by fitness pros as one of the best current fitness trends. Another such trend is F45, where you have do a series of high-intensity workouts in 45 minutes. Harvard has tagged it as the “faster route to fitness” while a Norwegian study declared that HIIT can help you live longer

If experts around the world have been singing its praises for years, are HIIT workouts the best way to get fit? Of course, like everything in the world of health and fitness, the story is not so simple. On top of understanding the benefits of HIIT workouts, it’s essential to look at the cons of high-intensity exercise.

What Are the Disadvantages of HIIT Training?

In Singapore, doctors have been seeing a wave of injuries caused by HIIT such as shoulder pain and knee injuries and that trend has been mirrored across the world.  A recent headline proclaimed that too much HIIT training could be doing more harm than good. It seems that too much of a good thing can indeed be a bad thing.

Read more: Will ACL Tear Heal on Its Own?

This is one of the fundamental lessons of HIIT workouts: go hard, but not for too long.  According to sports therapist Barry Sigrist, the key is to work within the right ratios. This means 20-minute sessions where you are working for 30 seconds at your maximum (or, ideally with a smartwatch or activity tracker that will show when you’re at 80 per cent of your max heart rate) then break for 60 seconds.

It might feel strange to push for only 30 seconds and then rest for 60 seconds but that’s the secret to success. This is what gives your muscles the time they need to renew their levels of oxygen and glycogen. If you rest too much, however, you’ll start breaking down muscle tissue.

Is It OK To Do HIIT Every Day?

Definitely not. When it comes to HIIT training, it’s key to remember that intervals of rest are just as important as intervals of high-intensity work. According to the Mayo Clinic, you should aim for one to two HIIT workout sessions a week. Of course, that doesn’t mean that you should be lounging on the sofa snacking the other five to six days a week! Instead, focus on the golden rules of moderation and variety.

Don’t overwhelm your body with high-intensity workouts daily. Look to strength training and low-intensity cardio on your off days such as yoga and pilates. Focus on keeping your body moving and doing regular stretches rather than driving to the maximum level every day. Be sure to stretch before working out to reduce the chances of getting muscle cramps and injuries.

Is HIIT a Good Way to Lose Weight?

Yep! If you’re looking for a quick weight to burn calories, HIIT workouts are the gold standard. Compared to MICT (moderate-intensity continuous training) workouts like jogging or cycling, HIIT will do more for you in less time. According to studies, shorter HIIT sessions will help you lose weight just as effectively as longer MICT sessions.

While HIIT training for weight loss doesn’t guarantee overnight success, it does mean that you could get the same results with a 20-minute HIIT workout as you might get with a 40-minute run. If you’re looking to drop weight, you can choose either one or a mix of both and see good results.

Before you start with HIIT, however, you need to know the basics. New fitness enthusiasts often get lost in the world of exercise trends (and it’s easy to understand why) so let’s keep it simple: wondering if you will lose more weight running or doing a HIIT routine? Be aware that on a minute-to-minute basis, HIIT gives you a better workout, but it’s not the only way.

Which Is Better: HIIT or Cardio?

As any trainer will tell you, the best workout is the one you love. If you would rather cycle down a shady trail for an hour than face a 30-minute high-intensity workout, cycling is the best workout for you in terms of sustainability.

Those who don’t mind a serious sweat session will be rewarded with improved cardiorespiratory fitness though. Research from teams in Queensland, Australia, and Trondheim, Norway found that HIIT provides nearly double the cardiorespiratory fitness as a medium-intensity continuous training session of jogging or cycling.

Does HIIT Burn Belly Fat?

According to Sigrist, HIIT workouts tell your body to release human growth hormones and testosterone. That’s important because those are the two of the key players in metabolising fat. Those often dreaded exercises like burpees that push you to your absolute limit are what create the hormonal response that burns fat. By pushing yourself for 15 to 30 seconds at your max, you’ll be in an anaerobic state and producing lactic acid while releasing adrenaline that’ll push your body to burn fat while building muscles.

How Long Does HIIT Take to Show Results?

A range of studies has shown the quick power of HIIT workouts. The average person trying HIIT regularly for the first time can expect to see results within as few as four sessions. If you don’t already exercise regularly, you might feel your progress with every workout.

As always, however, it’s essential to remember that exercise needs to work in conjunction with a healthy diet. If you’re eating more calories than you’re burning, you’re slowing down the process.

What Happens to Your Body After HIIT?

Another acronym you’ll see if you read about HIIT for long enough is EPOC (Post-Exercise Oxygen Consumption). This so-called “afterburn effect” is your body’s way of cooling down after an intensive workout. After your HIIT session, your body works to rebalance your hormones while repairing muscle tissue and cells.

While the repair process is something that your body will do on autopilot as you go on with your day, you need to know about it because it’ll continue your calorie burn. The more intense your workout is, the longer your body will fight to repair itself and the more calories you’ll burn

Is HIIT Better Than Weight Training?

This depends on your goal. Weight training will help you boost your strength, while HIIT workouts are good for your overall health and overall cardiovascular health. The best option for you depends on where you are on the journey.

According to Dr Connolly at Plymouth University, if you’re completely new to exercise, you may want to start with lower-intensity workouts and then make your way up to HIIT. If you’re middle-aged or older and looking to stay healthy, HIIT is a good starting point. For older adults and athletes, it’s essential to consider as well, however, that weight training strengthens your joints, muscles, and bones.

If you’re looking to lose weight, it’s crucial to look at the value of weight training. More weight training means more lean muscle mass which means higher metabolism. If you’ve ever seen anyone who seems to be able to eat whatever they want without gaining weight, you’re looking at someone with a lot of lean muscle mass.

If you want to be lean and toned, look at a blend of HIIT and weight training. And, remember that HIIT should be limited to no more than twice a week. During the rest of the week, opt for weight training and lower-impact workouts.

Is HIIT Worth It?

If you’ve come this far, you are probably interested enough to try a few HIIT workout sessions. Experiment with different workout classes at the gym or just tune into a YouTube HIIT video. Explore different workouts and see what you enjoy.

Bottom line: The best workout is the one you do! Run 40 minutes, do a 20-minute HIIT session, or lift weights for 30 minutes. Want to truly get in the best shape of your life? Do all three types of workouts weekly! 

Looking for a Reliable Orthopaedic Doctor in Singapore?

If you’re experiencing aches and pains after your HIIT workout, it is best to seek orthopaedic treatment in Singapore. These professionals will uncover the root of the problem and will determine whether physiotherapy or orthopaedic surgery is best for your condition. If you’re suitable for physiotherapy, your doctor will create a long-term training routine to further boost your shoulder mobility and build strength in your limbs.

Meanwhile, you can learn about the differences between a chiropractor, osteopath and physiotherapist to find the best treatment for your injury, or learn abut the differences between chiropractors and orthopaedic doctors.

To get started, you can book an appointment online with our orthopaedic clinic in Singapore and ask for Dr James Tan. Prefer to chat? Message us on our Whatsapp at+65 8028 4572 or call us at +65 6235 8781 or via email hello@quantumortho.com.sg.

RoH - Call to action - Contact us 1

If you’d like to find us directly, visit one of our clinics below:

Mount Elizabeth Medical Centre

3 Mount Elizabeth, #13-14

Singapore 228510

Mount Alvernia Hospital

820 Thomson Road

Medical Centre D #05-60

Singapore 574623

Check out our other articles: