It has been brought to our attention that the article [1] in reference [7] Smith MM, Sommer AJ, Starkoff BE, Devor ST. Crossfit-based high-intensity power training improves maximal aerobic fitness and body composition. J Strength Cond Res. 2013;27(11):3159-72 was retracted in October 2017. At the time of the submission of the manuscript the authors were not aware of the retraction and legal implications related to this reference. Therefore, the authors do not support the findings of the retracted article such as that CrossFit has "an apparent disproportionate musculoskeletal injury risk, especially for novice participants". The overall conclusions of the case report are not affected by this erratum.