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Fitball - Superman

Fitball - Superman

This is similar to one of the many plank varieties, but on a fitball - which is great for your core stability. Balance on the fitball using only one hand and the opposite knee. The other hand and leg are straight out in the air. How long can you hold this position for?   more about this challenge...

Comment on this challenge
  • profile pic Great challenge - very diificult, but fun by Worthster on 11/24/2011 10:06:00 PM

  • profile pic this is more difficult - give me a weeks practice by John Feelgood on 11/22/2011 7:42:00 PM