There's growing dissent among sports scientists about whether paying attention to deep abdominal muscles actually gives you a more powerful core and a stronger back and whether it's even safe.
By GRETCHEN REYNOLDS, New York Times
Wed, 06/17/2009 - 9:03am
There's growing dissent among sports scientists about whether paying attention to deep abdominal muscles actually gives you a more powerful core and a stronger back and whether it's even safe.