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If you like this challenge but it's private, for people of a much higher or lower ability/fitness level, or you think lots of people are lying about their scores, don't forget you can easily create a similar challenge for a different set of competitors, or keep it private for friends who you trust to post honest scores. If you create your own challenge you'll be able to moderate all entries as well.
This will challenge your abs like nothing else! Start out with your hands on the floor and your feet together on the ball (like a press-up). Keeping your legs and back straight, bring... more details
