Tighten your abs and build muscle with crunch combos; learn great exercises for fitness on the beach in this free video.
Expert: Jeanette Stojcevski
Bio: Jeannette Stojcevski has been an avid runner for over 15 years. Her track career started in middle school and spans through college.
Filmmaker: Nili Nathan
this exercise for crunch not for legs :)
blemba2 2 years ago
its bad to cross your legs because one side of your abs gets worked more than the other.
grybok1ng 2 years ago