![The Stability Ball Jackknife: A Cure For Crunch And Plank Boredom | Member Login Area | Tom Venuto's Burn the Fat Inner Circle - Weight Loss - Fat Loss - Support Community - The Stability Ball Jackknife: A Cure For Crunch And Plank Boredom | Member Login Area | Tom Venuto's Burn the Fat Inner Circle - Weight Loss - Fat Loss - Support Community -](https://www.burnthefatinnercircle.com/members/images/1744b.jpg)
The Stability Ball Jackknife: A Cure For Crunch And Plank Boredom | Member Login Area | Tom Venuto's Burn the Fat Inner Circle - Weight Loss - Fat Loss - Support Community -
How to Perform a Swiss Ball Jackknife | physical exercise, knee, Core stability, vertebral column | The Swiss Ball Jackknife is a great anterior core exercise that requires lots of core stability.
![Human Kinetics on X: "Are you performing the stability ball jackknife with good form? Get tips on this exercise and 100 others with step-by-step instructions in Exercise Technique Manual for Resistance Training: https://t.co/A2UYaX4d1R Human Kinetics on X: "Are you performing the stability ball jackknife with good form? Get tips on this exercise and 100 others with step-by-step instructions in Exercise Technique Manual for Resistance Training: https://t.co/A2UYaX4d1R](https://pbs.twimg.com/media/FMOi9nxXoAEAvnf.jpg)