New Research Sparks Call for Guidelines Around High-Intensity Interval Training

SOURCE: Les Mills

New research has for the first time set a recommended upper limit of High-Intensity Interval Training (HIIT) at 30-40 minutes working out at above 90 percent of the maximum heart rate per week.

The study findings – presented by Associate Professor Jinger Gottschall at the 2018 American College of Sports Medicine (ACSM) Annual Meeting this month – provide evidence that any more than 30-40 minutes of HIIT in a maximum training zone per week can reduce performance and potentially result in a greater risk of injury.

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