The transversus abdominis (TA) muscle is the deepest of the abdominal muscles. It extends between the ribs and the pelvis, wrapping around the trunk from front to back. The fibers of this muscle ...

If you've been training for a while, you know classic ab workouts like crunches and situps only go so far to hone six-pack abs. While they're not totally useless, incorporating weighted ab exercises ...