“In 2013, a study published in the Journal of Strength and Conditioning Research, a publication of the National Strength and Conditioning Association (NCSA), found that 10 weeks of CrossFit improves body composition (among other things). But it also noted that among the study subjects, 16 percent had to drop out of the study early due to injury. That was a problem for CrossFit, Inc., says Tucker Jones, owner and head coach at Ballston CrossFit and CrossFit Route 7, because it was false.”