Chief Master Sgt. John Storms, 628th Security Forces Squadron superintendent, drops a piece of chalk into the chalk bucket after applying it to his hands to assist with grip when lifting weights during a CrossFit class Nov. 19, 2012, at the Joint Base Charleston, S.C., Fitness Center. Several of the individuals at the CrossFit class use chalk, hand straps and tape when lifting weights. (U.S. Air Force photo/ Senior Airman Dennis Sloan)
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