Posted 'Exercise Ball Hamstrin… by webguy | Jan 10, 2010 | Fitness | 0 comments Posted ‘Exercise Ball Hamstring Curls | Swis ball leg curl’ to blip.tv: http://blip.tv/file/3070079 Submit a Comment Cancel replyYour email address will not be published. Required fields are marked *Comment * Name * Email * Website Save my name, email, and website in this browser for the next time I comment.