Pingback: Pinterest as a personal trainer | little food court
What are the “hips up”?
Yes, please explain “hips up.”
This is what I found on youtube: http://www.youtube.com/watch?v=g1B6AqrjSsc
What’s reverse crunches?! & bicycle crunches?!
Pingback: Pinterest as a personal trainer | little food court
What are the “hips up”?
Yes, please explain “hips up.”
This is what I found on youtube: http://www.youtube.com/watch?v=g1B6AqrjSsc
What’s reverse crunches?! & bicycle crunches?!