Help? Please!

Duckeyfinn17

Hi my name is Rebbecca!
I just worked out this morning and I did Jack-knives on a fitness ball, and I can not seem to find out what that is called in the fitness diary! If anyone could give me some feed back that would be awesome!! Thank you!!! (:

HuskyLady

Not sure what that is, but I Googled it & this is what I found.

http://www.ball-exercises.com/exercises/abs/index.html#6

Hope it helps.

Duckeyfinn17

Thanks! I keep trying to find it in the fitness diary but it doesn't come up. It shows there is no results for it