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

The basic membership will cost you $35 a year, which comes with a run club shirt, discounts on races, free interval training and more. — Rashad Alexander, Kansas City Star, 24 June 2026

Goldstein's fitness plan focused on a structured running program that included three days of interval training and one lower-body strength-training day each week. — ABC News, 15 June 2026

The Fitbit Air shows specific beats per minute (bpm), and those values proved precise in testing, accurately reflecting the varied intensities of interval training sessions. — Andrew Gebhart, PC Magazine, 30 May 2026

If your cardiorespiratory fitness could use a boost, Gavino said a wide range of physical activities can help, including aerobic activities like brisk walking, cycling, swimming, and interval training. — Sarah Garone, Health, 13 May 2026

Word History

First Known Use

1955, in the meaning defined above

Rhymes for interval training

• immunostaining
• abstaining
• attaining
• campaigning
• complaining
• constraining
• containing
• detaining
• disdaining
• entraining
• explaining
• maintaining

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