HIIT

Advanced

Step and strength endurance

Conditioning · Step-ups, Marching in place, Bodyweight squats, and Step jacks

Timer
1:37:40 including countdown
Equipment
Low, stable box
Active calories
269–439 kcal

Rough estimate for 70 kg (154 lb) of body weight. Pace, rest and movement affect actual energy use. Adult Compendium

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HIIT

How it works

A 10-second countdown leads into 14 rounds. Work for 90 seconds on each movement, rest 10 seconds between movements and 30 seconds between rounds.

Take the first round easy. Set a steady pace you can sustain and take extra breaks as needed. Use a stable, non-slip step about 4–8 in (10–20 cm) high.

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The movements

  1. Step-ups

    Put your whole foot on a low, non-slip box. Step up and down under control, alternating your lead leg each rep.

    Make it easier Use a lower step you can climb without momentum.

    90 sec each interval
  2. Marching in place

    Lift one knee at a time and place each foot down softly. Keep your torso tall and let your arms swing naturally.

    90 sec each interval
  3. Bodyweight squats

    Stand with your feet about shoulder-width apart. Lower your hips under control, then stand by pressing through the whole foot.

    Make it easier Use a shallower range if it helps you stay steady.

    90 sec each interval
  4. Step jacks

    Step to one side and raise your arms out to the sides. Bring your foot and arms back to the middle, then switch sides.

    90 sec each interval