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To Make High-Intensity Interval Training Work, Get Out Of Your Comfort Zone

Tech Times—February 2, 2015

High-intensity interval training (Hiit) is most effective when practitioners move outside their comfort zones, according to new research.

Exercise utilizing the principles of Hiit involves short bursts of intensive activity, broken by times of rest. The practice can build muscles and burn calories at a surprising rate with just 20 minutes a day of effort. Taking part in Hiit can burn calories and trim fat in as little as half of the time required for those who participate in steady-state exercises. However, finding the best level of exertion is key to getting into shape with Hiit, the study revealed.

"We lose strength as we age, and that process occurs more quickly the further we get from 18 years old. But HIIT gives us a great way to preserve strength - and even to build strength - as we age," Jordan Metzl, MD, a sports-medicine physician and fitness instructor from Hospital for Special Surgery in New York City, said.

Metzl recommends that anyone over the age of 60 should consult with their physicians before starting a Hiit program, due to the stress the exercise can put on bones and hearts.

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