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MAGAZINE ARTICLES
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July
2005
p. 68
Fitness Flash Fab-ab tool A stability ball
makes abs work harder—if properly placed, says
Eric Sternlicht, Ph.D., a kinesiologist at Occidental College in Los Angeles. For the best
results, crunch with the ball under your lower back; keeping it under
your shoulders is even less effective than crunching on the floor. |
