What is a Swiss ball reverse crunch?

Lie on your back with your hands out to your sides while squeezing a Swiss ball in between your feet. Keeping your legs as straight as possible, lift the ball up and off of the ground. Push the ball towards the sky while curling your lower back off of the floor. Slowly lower to the starting position.21 Şub 2014

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Do medicine ball crunches work?

As you’ve probably guessed, the medicine ball crunch is a great core workout , and your abs will certainly feel the strain of a full set. It’ll also improve the strength and flexibility in your arms and shoulders, and if you opt for a little throw and catch, your co-ordination should benefit as well.21 Oca 2017

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