If you go the gym a lot, you've probably seen someone misuse a machine or do an exercise wrong. But it probably wasn't as funny as THIS dude. There's a video online of some guy doing sit-ups at the gym, except he never actually does one.
In his mind, he can bang out about 75 sit-ups in 20 seconds.
Crazy close, isn't it?
What do YOU think ?
Remember when jumping rope was fun and a darned good workout?
This girl has taken it to an EXTREME !