interval training

noun

: a method of physical training that involves alternating brief periods (such as 1 to 2 minutes) of intense exercise with longer periods (such as 3 to 5 minutes) of less intense activity

This challenging 45-minute routine uses a strategy called interval training—alternating high-intensity activity with periods of "active rest," or lower-intensity exercise.

—Troy DeMond

… interval training works both the aerobic and the anaerobic system. During the high intensity efforts, the anaerobic system uses the energy stored in the muscles (glycogen) for short bursts of activity.

—Donna Cotnam

see also high-intensity interval training

Examples of interval training in a Sentence

Recent Examples on the Web

Forth also regularly holds group fitness classes focusing on high-intensity interval training (aka HIIT), yoga, and spin, as well as mat and reformer pilates. —Keyaira Boone, Travel + Leisure, 4 Feb. 2025

The game encourages interval training and can be played solo or co-op. —Felecia Wellington Radel, USA TODAY, 3 Feb. 2025

Today, the dance workout also incorporates strength work and high intensity interval training. —Danielle Friedman, New York Times, 15 Jan. 2025

New research suggests high intensity interval training (HIIT) can do more to improve fitness than moderate-intensity workouts. —Lisa Rapaport, EverydayHealth.com, 9 Aug. 2024

Princess Kate is known for her varied workout routines, which include cold swimming, tennis, interval training and more, as well as jumping on the trampoline and staying active with her children Prince George, 11, Princess Charlotte, 9, and Prince Louis, 6. —Janine Henni, People.com, 5 Nov. 2024

More research and longer-term studies into the impacts of interval training are needed. —New Atlas, 10 Oct. 2024

Incline Range An incline range can lend variability to your workouts and is a great feature to have on hand for interval training or steep hikes. —Ashley Zlatopolsky, Architectural Digest, 12 Sep. 2024

But a new study published in the journal Stroke suggests that some stroke survivors may get a better health boost from high intensity interval training (HIIT) — and suffer no health issues from these more challenging workouts. —Lisa Rapaport, EverydayHealth.com, 9 Aug. 2024

Word History

First Known Use

1955, in the meaning defined above

Kids Definition

interval training

noun

: a method of physical training that involves alternating brief periods (as 1 to 2 minutes) of intense exercise with longer periods (as 3 to 5 minutes) of less intense activity