SOME METHODS OF bulking up go beyond weight training and diet. Though forbidden by sports leagues, many steroid treatments are perfectly legal. Dr. Todd Schroeder, associate professor of clinical physical therapy and director of the University of Southern California Clinical Exercise Research Center at the USC Division of Biokinesiology and Physical Therapy, estimated that over half of Marvel’s stars use some form of performance enhancing drug (PED) to get the physiques they want. “At least for the short term,” he said. “I would say that fifty to seventy-five percent do.” For an in-depth 2013
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