Exercise Ball Crunch

AbsExercise ballBeginnerIsolation
Exercise Ball Crunch — start position
Start
Exercise Ball Crunch — finish position
Finish
Muscles worked
PrimaryAbs

How to do it

  1. 01

    Lie on an exercise ball with your lower back curvature pressed against the spherical surface of the ball. Your feet should be bent at the knee and pressed firmly against the floor. The upper torso should be hanging off the top of the ball. The arms should either be kept alongside the body or crossed on top of your chest as these positions avoid neck strains (as opposed to the hands behind the back of the head position).

  2. 02

    Lower your torso into a stretch position keeping the neck stationary at all times. This will be your starting position.

  3. 03

    With the hips stationary, flex the waist by contracting the abdominals and curl the shoulders and trunk upward until you feel a nice contraction on your abdominals. The arms should simply slide up the side of your legs if you have them at the side or just stay on top of your chest if you have them crossed. The lower back should always stay in contact with the ball. Exhale as you perform this movement and hold the contraction for a second.

  4. 04

    As you inhale, go back to the starting position.

  5. 05

    Repeat for the recommended amount of repetitions.

In the app

Exercise Ball Crunch appears when you own an exercise ball and the day's window has room for it. Its minutes come from Rule 2 (Sessions are built to fit, never guaranteed, graded product): the window sets how long it runs, never the other way round.

If a machine is taken the engine swaps a same-pattern movement and says why.

If you don't have an exercise ball

Same movement pattern, same primary muscles — swap by what you have.

With machine
With cable
With bodyweight

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