Add Yahoo as a preferred source to see more of our stories on Google. Meet the experts: Jacqueline Kasen, CPT, is a Miami-based coach, master trainer, and senior director of group fitness at Anatomy.

Lee Haney’s back was the factor that led to his 8-year-long Mr. Olympia reign. Aspiring bodybuilders or fitness enthusiasts, this is your day to learn how to take care of your paraspinal muscles ...