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Swiss Ball


Fitness Systems

Swiss Balls • Stability Balls • Physioballs
A great fitness tool for strengthening the back, abs, and more!


swiss ball prone jacknife The Jacknife Basic

Tuck both knees so that your heels touch your buns.

11 more exercises - beginner, intermediate, and advanced

Go to the Swiss Ball page

 
Animated Exercises

Jacknife Basic

See the
Jacknife Advanced


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