The midlife

Irish Independent - Health & Living - - FITNESS -

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

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