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20120814012346-stability-ball-jack-knife-3-sets-for-five-of-seven

Stability Ball Jack Knife 10x3 for 6 of 14 days.

Place your ankles on top of the exercise ball, legs extended, chest facing the floor and extend your arms to lift you from the floor.
Keeping your weight on your extended arms, roll the ball in by bending your knees and hips and extend your legs back after a short pause
Breathe out while rolling the ball in and breathe in while returning to starting position.
Three sets of 10-15, 6 out of 14 days

Stability Ball Jack Knife 10x3 for 6 of 14 days. Challenge rules

  1. Three sets of 10-15 for Six out of 14 days.
  2. What size stability ball should you buy http://www.livestrong.com/article/290889-what-size-stability-ball-should-i-buy/
  3. Not all types of physical activity are suitable for everyone. Users take Challenges and training advice at their own personal risk.

Related Exercises

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Exercise Ball Exercises

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Jane H Stability Ball Jack Knife 10x3 for 6 of 14 days. Challenge

Contributorgold Jane H Oh my, I have had this challenge sitting here for over a year! Now, I must either buy an exercise ball or make sure I do this one at gym so I can hit complete some day soon!

encouraged this.

20131122040327-janeh

Will look into it, thanks for the prompting Brad and Maria :)

Maria B and Brad N encouraged this.

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Teresa D Stability Ball Jack Knife 10x3 for 6 of 14 days. Challenge

Contributorgold Teresa D day 1... oooh that's quite a toughie!

encouraged this.

20130913184138-teresad

ye felt it..x front of my thighs.x

20130914084906-annet1

Takes lots of control doesn't it?!!! Just think how strong it's making you! :)))

Teresa D encouraged this.

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28 takers

  • Sarah
  • Victoria
  • Tea
  • Gordana
  • Ana
  • Liz
  • Jessica
  • Mimi
  • Christine
  • Teresa
  • Ana
  • Sarah
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Challenge creator

Robyn R

created the challenge

14th August 2012

20130328234646-robyn

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