Human functionality occurs in the shape of an X across the body from one arm down through the core to the foot, and the same on the other side. A big criss-cross, all driven by the power and synergy ...

All products are independently selected by our editors. If you buy something, we may earn an affiliate commission. Perhaps you've heard of a fitness phenomenon called P90X? The 90-day, at-home workout ...

Stream 'P90X - Core Synergistics (2004)' and watch online. Discover streaming options, rental services, and purchase links for this movie on Moviefone. Watch at home and immerse yourself in this movie ...

Eddie Lacy took some shots for his weight last season, and apparently those jabs motivated the Pro Bowl running back to spend his offseason doing nothing but working out. Former Alabama running back ...