Metabolic Effects of HIIT

by: Len Kravitz, PhD


Studies find high-intensity interval training protects against heart disease and shows promise for improving insulin sensitivity and controlling blood pressure.

High-intensity interval training is enormously popular in the fitness indus- try this year. HIIT workouts typically include short bursts (6 seconds to 4 minutes) of intense exercise (≥ 90% maximal aerobic capacity) alternating with relief breaks of varying lengths (Kessler, Sisson & Short 2012; Boutcher 2011).

The workouts include a limitless vari- ety of exercises, including

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IDEA Fitness Journal, Volume 11, Issue 5

© 2014 by IDEA Health & Fitness Inc. All rights reserved. Reproduction without permission is strictly prohibited.

About the Author

Len Kravitz, PhD

Len Kravitz, PhD IDEA Author/Presenter

Len Kravitz, PhD, is the program coordinator of exercise science and a researcher at the University of New Mexico in Albuquerque, where he recently won the Outstanding Teacher of the Year award. Len w...