See more free online exercise videos at http://befitandstrong.com. The stomach crunch has been a staple ab exercise for many years. But when done on an exercise ball, the effectiveness of the exercise is dramatically increased. You’ll find this exercise not only works the abdominal muscles, but also works the thighs and butt as you work to maintain your balance. Check out this free online exercise video to see exactly how it’s done.
Duration : 0:1:58
December 9th, 2009 - 4:55 pm
what song is in the …
what song is in the background .. rlly good!!
December 9th, 2009 - 4:55 pm
i hurt y tail bone …
i hurt y tail bone with that ball what do you mean your not going to get hurt?!
December 9th, 2009 - 4:55 pm
i have a ball like …
i have a ball like that
December 9th, 2009 - 4:55 pm
hmmm good!!!:D
hmmm good!!!:D
December 9th, 2009 - 4:55 pm
lovely
lovely
December 9th, 2009 - 4:55 pm
good.
good.