Both work your abs, but in different ways ...
Plus, which move is more effective for strong abs.
In this Story Behind the Song, NSAI Executive Director Bart Herbison sits down with songwriters J.T. Harding and Uncle Kracker about their song "Smile." ...
Fit&Well on MSN
A kinesiologist says you can improve balance, build “strong, responsive feet” and reduce risk of falls with these two simple exercises
Park the balance tricks and use this two-move workout instead ...
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