By the Editors of Men’s Health
Are those infomercial exercise devices six-pack saviors, or money-wasting scams? You don’t have to call an 800 number to find out. Researchers at Slippery Rock University, in Pennsylvania, measured muscle activation in five different abs gadgets and compared them with the classic situp.
The Ab Sling
These hanging straps activated people’s abdominal muscles most—but were also the most despised exercise, says study coauthor Jeff Lynn, Ph.D. “It’s very uncomfortable. Many complained about arm and shoulder fatigue, pain, and numbness.”