HIIT

abbreviation or noun

: a form of interval training that alternates very brief periods (such as 20 to 40 seconds) of intense exercise at maximum effort with periods (such as 15 to 30 seconds) of less intense exercise : high-intensity interval training
HIIT, or high-intensity interval training, is a training technique that requires you to perform quick, intense bursts of exercise, followed by short and active recovery periods.Sudhakar Jha

Examples of HIIT in a Sentence

Recent Examples on the Web
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Boxing, racquetball, HIIT, rowing, and jumping rope may also burn more calories than running at moderate or high intensities. Sarah Bence, Verywell Health, 18 Aug. 2025 The researchers compared the HIIT session with two other pre-test conditions: a period of seated rest and moderate-intensity cycling. Daniella Gray, MSNBC Newsweek, 12 Aug. 2025 But lately, the heated workout has edged toward the norm, with a wave of warm classes ranging from barre and Pilates to HIIT, cycling, and strength training. Erica Sloan, SELF, 8 Aug. 2025 Running, cycling, HIIT, and jumping rope are all examples of cardio exercise proven to improve cholesterol profiles. Sohaib Imtiaz, Verywell Health, 30 July 2025 See All Example Sentences for HIIT

Word History

First Known Use

1994, in the meaning defined above

Time Traveler
The first known use of HIIT was in 1994

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Cite this Entry

“HIIT.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/HIIT. Accessed 28 Aug. 2025.

Last Updated: - Updated example sentences
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