Reverse crunches are one of basic core strengthening exercises that also improve stability throughout the lower back, hips, and spine. Watch here: https://www.youtube.com/watch?v=NwcfA7Kj1fA
We Use Cookies. 4shared uses cookies and other tracking technologies to understand where our visitors are coming from and improve your browsing experience on our Website. By using our Website, you consent to our use of cookies and other tracking technologies. Change my preferences