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HIIT (High-Intensity Interval Training)

Alternating between intense bursts of exercise and rest or low-intensity periods.

Updated

HIIT involves short periods of maximum effort followed by rest or low-intensity recovery. Typical protocols use 20-40 seconds of work followed by equal or longer rest. HIIT is time-efficient, burns significant calories, and creates an afterburn effect (EPOC) where you continue burning calories post-workout. It can be done with any exercise modality.

Examples

  • 30 seconds sprint, 30 seconds rest x 10
  • Tabata: 20 seconds on, 10 seconds off x 8
  • 20-minute HIIT session

Common questions

What is HIIT?

Alternating between intense bursts of exercise and rest or low-intensity periods. HIIT involves short periods of maximum effort followed by rest or low-intensity recovery.

What exercises train the HIIT?

Good options include Trail Running/Walking, Walking, Treadmill, Bicycling, Bicycling, Stationary, Elliptical Trainer. Each links to a step-by-step guide with demonstration images.

What are examples of HIIT?

30 seconds sprint, 30 seconds rest x 10; Tabata: 20 seconds on, 10 seconds off x 8; 20-minute HIIT session.

Put it into practice

12-Week Muscle Building · £29

A 12-week, four-day hypertrophy plan in three phases, with a modest calorie surplus

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