Mike Christopher of Body-Solid discusses the hack squat, its many benefits and how to use the Body-Solid GLPH1100 Hack Squat machine.
- BodySolid.com: http://www.bodysolid.com
- GLPH1100: http://www.bodysolid.com/home/GLPH1100/Body-Solid_Leg_Press___Hack_Squat
