HIIT BUILDER

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Regular ol situps

On your back / Core / Moderate / No jumping

Side
Angled
Add to a workout Open the builder

How to do it

  1. Set upLie on your back, knees bent, feet flat, arms across your chest or reaching forward.
  2. MoveRoll up one vertebra at a time until you're sitting tall, then roll back down the same way.
  3. Watch forHooking your feet under a couch and yanking up with your hip flexors. If your feet lift, slow down.

Easier or harder

Easier
Crunches: only lift your shoulders.
Harder
Sit-up + punches: add punches at the top.

What it works

Muscles
Core
Position
On your back
Intensity
Moderate Medium
Impact
No jumping

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