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Illustration of the Stability Ball Crunch: Let the low back drape over the ball for extra range, then crunch up short.
isolation · Core

Stability Ball Crunch

Stability Ball Crunch is an isolation core movement for abs, using no equipment. 3 sets of 15-25, 1 min rest.

Primary muscle
Abs
Equipment
None — bodyweight
Difficulty
Beginner
Sets and reps
3 × 15-25
Rest
45s
Force
pull

How to do it

  1. 1
    Set up

    Sit onto the ball and walk out until it sits under the low back.

  2. 2
    The cue that matters

    Let the low back drape over the ball for extra range, then crunch up short.

  3. 3
    Work it

    3 sets of 15-25, resting about 1 minute between them.