“Is High Intensity Interval Training (HIIT) better than Low Intensity Steady State (LISS) exercise?”
Both HIIT and LISS have their benefits – it just depends on the goal. HIIT can be any type of exercise, as long as it’s done intensely. It’s most commonly performed in circuits.
Low Intensity Steady State exercises include:
- walking,
- Tai Chi
- and Pilates.
If you are looking to improve your fitness levels and cardiovascular health, then HIIT is more highly recommended as it stresses out the body’s system for longer. But, due to this strain on the body, HIIT shouldn’t be done more than two to three times a week.
LISS has other benefits, such as improving flexibility, reducing stress and boosting circulation.
HIIT is seen as more advantageous for those who are pushed for time, as it can be done in up to half an hour. But, due to its intensity there is a misconception that HIIT burns off more calories. If you were to expend 100 calories in an intense 15-minute HIIT session, versus 100 calories in a 30-minute LISS session, the results would be the same.
So, one is not necessarily superior to the other – it comes down to what you enjoy and feel comfortable doing. Let’s face it – everyone is different but if you have fun, you’re more likely to do it again!1
“Does exercise mean I can eat whatever I want?”
The first thing to ask yourself here, is what does a good diet look like to you? A good diet should have a healthy calorie balance, be nutritious, and feasible to maintain in the long-term. Most importantly, a healthy diet should meet the needs of your lifestyle and become part of your journey to a healthier you.
If you’re undertaking a restrictive fad diet that’s making you unhappy then in 6 months’ time are you still going to have stuck to it?
The British Dietetic Association say: "There is no such thing as a ‘magic diet’. Most fad diets are associated with some degree of nutritional or health risk. A fad diet is offering a short-term solution to a long-term problem."2
It can be easy to fall into the trap of thinking you can eat plenty of food after a workout because you’ve ‘earned’ it. However, this can result in consuming many more calories than your body requires, leading to no physical change.
Nutrition is key to overall health, so if you’re eating poorly, exercise won’t counteract this. In other words, you can’t out-train a bad diet. You may experience other benefits of working out, such as improved mental health and flexibility, but eating badly won’t support a weight loss goal.
Enjoying a balanced, healthy diet will boost your body’s capability to expend calories over the long-term, which will get even easier when coupled with regular exercise.
Exercising needn’t be complicated. There are a range of ways to keep fit, so don’t be afraid to mix it up when finding what works for you.
Ultimately, it’s about enjoyment, which will help you stay committed. Just remember to check in with your GP before making lifestyle changes. Don’t let misconceptions stop you from taking positive steps towards a fitter, healthier future.
References
- Maintaining healthy behaviour - National Library of Medicine
- Fad diets - British Dietetic Association