500 Double Unders
Every failed jump do 10 sit ups
*Upon completion stretch calves for no less than two consecutive minutes per side.
500 Double Unders
Every failed jump do 10 sit ups
*Upon completion stretch calves for no less than two consecutive minutes per side.
Local 1592 Fitness Training 
Paul Mc:
20:02
140 sit ups
I can’t consistently do doubles, so I did one single in between each double. It took me 30 min. to do 500 doubles and 500+ singles, with way to many sit ups to count. Steve Minnich