Proving you really can have too much of a good thing, a new study has found that the benefits of the hugely popular HIIT workouts dwindle if you do them too often — and can even be harmful. HIIT —which stands for high-intensity interval training — has been a fitness favourite for a while now, given its premise that short bursts of intense exercise burns more fat and build more muscle than longer, steadier workouts. Meaning more results in less time.
However, while the benefits of HIIT are widely known, is there a tipping point?
“There are countless types and formats of high-intensity training available without tested recommendations on how much is too much,” says Jinger Gottschall, an associate professor of kinesiology at Penn State University in the US, who led the study.
“Individuals with a high volume of HIIT training were unable to reach their maximum heart rate regularly and complained of symptoms related to overtraining.”
“It’s one of the most popular types of exercise right now in gyms and classes,” says UKbased personal trainer Matt Roberts, who has worked with Britain’s former prime minister David Cameron and his wife Samantha.
“However, if it’s not used appropriately, there’s the risk of extreme overload, delayed onset muscle soreness (DOMS), injury and
Resistance training can be part of a HIIT workout