Abstract
Background: Previously published studies have reported injury rates ranging from 0.74 to 3.3 per 1000 h of exposure in CrossFit participants. However, the existing body of evidence is mainly based on experienced participants; therefore, the injury incidence and injury rate within novice CrossFit participants remains relatively unknown. The aim of this study wasto investigate the injury incidence and injury rate among novice participants in an eight-week CrossFit program. Methods: This survey-based prospective cohort study included CrossFit Copenhagen’s novice members who began an eight-week, free-of-charge membership period. A questionnaire was distributed at baseline and at eight-week follow-up. Information about exposure was retrieved through the online booking system. Injury incidence, defined as proportion of participants who sustained an injury, and injury rates per 1000 h of exposure were calculated. Results: Among the 168 included participants, a total of 28 injuries (14.9%) were reported. The number of injured participants and total exposure time resulted in an injury rate per 1000 h of exposure of 9.5. Conclusions: Compared to the existing body of evidence, the findings in this study indicate that the risk of injuries is higher among novice participants than among experienced CrossFit participants.
Highlights
CrossFit is a type of high-intensity functional training and is one of the fastest growing fitness programs in the fitness industry [1,2]
We investigated if the injury rate was higher among participants who attended introduction classes compared to participants who did not attend introduction classes
We found a total injury incidence of 14.9% among novice CrossFit participants included in this study and exposed to eight weeks of CrossFit training
Summary
CrossFit is a type of high-intensity functional training and is one of the fastest growing fitness programs in the fitness industry [1,2]. Several mechanisms for the presumed high number of injures have been discussed, including performing technical movements under high intensity close to exertion and even performing harmful movements [4,5] These possible mechanisms are still undocumented, and a growing body of evidence concludes that the injury rates of CrossFit participants arecomparable to the injury rates of other noncontact sports such as Olympic weightlifting and gymnastics [4,6,7,8,9,10,11,12,13,14,15,16,17,18]. Among the studies reporting an injury rate per 1000 h of exposure, the results seem to be relatively. Conclusions: Compared to the existing body of evidence, the findings in this study indicate that the risk of injuries is higher among novice participants than among experienced CrossFit participants
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