Cross-posted from the President’s Council of Fitness, Sports and Nutrition blog.

By: Karin Allor Pfeiffer, PhD, FACSM, Associate Professor in the Department of Kinesiology and faculty in the Center for Physical Activity and Health at Michigan State University, Member of the PCFSN Science Board, and Subcommittee Member of the Physical Activity Guidelines Midcourse Report

In 2008, the U.S.…