In practice, those dueling goals have led HIIT scientists to study intervals ranging from a protracted four minutes to a quickie 20 seconds. And in the new study, which was published this week in Medicine & Science in Sports & Exercise, he and his colleagues settled on a blink-swift four seconds. The rest of us, Coyle and his colleagues reasoned, probably would require twice as long — or about four seconds. At first, they sprinted for four seconds, with Allen calling out a second-by-second countdown, followed by 56 seconds of rest, repeating that sequence 15 times, for a total of 60 seconds of intervals. But even if the time commitment is doubled, most of us probably could resolve to exercise in 2021 often and intensely for eight seconds at a time.

Source: Indian Express January 01, 2021 03:33 UTC