-
J Sports Med Phys Fitness. 2020 Nov;60(11):1470-1476. doi: 10.23736/S0022-4707.20.11040-5. Epub 2020 Jul 16.
CrossFit is a relatively new sport with rapidly growing participation rates in the United States and around the world. We sought to determine risk factors for sustaining multiple CrossFit-related injuries requiring medical evaluation.
CrossFit-related musculoskeletal injuries evaluated at a single hospital system (N.=837) were identified. For musculoskeletal injuries, use of physical therapy, injection, advanced diagnostic imaging including CT or MRI, and surgery were documented. Independent risk factors for sustaining multiple injuries requiring medical evaluation were assessed by multivariate logistic regression analysis.
A total of 94/837 (11.2%) underwent evaluation for 2 or more CrossFit-Related injuries (74% new injury to different body part; 26% subsequent injury, same body part). Independent risk factors for repeat injury (recurrent injury or second new injury) included increased length of follow-up (per year: OR 1.50 CI: 1.29, 1.75; P<0.001), initial injury during spring season (OR 2.03 CI: 1.27, 3.26; P=0.004), advanced imaging not obtained for evaluation of initial injury (OR 2.62 CI: 1.37, 5.02; P=0.002), course of physiotherapy completed for initial injury (2.00 CI: 1.17, 3.41; P=0.008), corticosteroid injection administered for initial injury (OR 2.43 CI: 1.21, 4.88; P=0.01), and increased age (per 5 year increase: OR 1.12 CI: 1.01, 1.24; P=0.03). These risk factors in combination had moderate discriminatory ability for identifying athletes at risk for multiple injuries.
There are multiple risk factors for sustaining a recurrent or second new CrossFit-related injury requiring medical evaluation including older age, length of participation, and spring season participation. Risk factors for repeat injury related to initial evaluation and treatment include not receiving advanced imaging, receiving a corticosteroid injection, or undergoing physical therapy. The anatomic site of initial injury was not related to risk of subsequent injury in this population.
CrossFit 是一项相对较新的运动，在美国和世界各地的参与率迅速增长。我们旨在确定需要医疗评估的多种 CrossFit 相关损伤的危险因素。
确定在单一医院系统中评估的 CrossFit 相关肌肉骨骼损伤（N=837）。对于肌肉骨骼损伤，记录了物理治疗、注射、包括 CT 或 MRI 在内的高级诊断成像以及手术的使用情况。通过多变量逻辑回归分析评估了发生需要医疗评估的多次损伤的独立危险因素。
共有 94/837（11.2%）人因 2 次或更多次 CrossFit 相关损伤（74%为不同身体部位的新损伤；26%为同一身体部位的后续损伤）接受了评估。重复损伤（复发或第二次新损伤）的独立危险因素包括随访时间延长（每年：OR 1.50 CI：1.29，1.75；P<0.001）、春季初始损伤（OR 2.03 CI：1.27，3.26；P=0.004）、未对初始损伤进行高级成像评估（OR 2.62 CI：1.37，5.02；P=0.002）、完成初始损伤的物理治疗课程（OR 2.00 CI：1.17，3.41；P=0.008）、初始损伤给予皮质类固醇注射（OR 2.43 CI：1.21，4.88；P=0.01）和年龄增加（每增加 5 岁：OR 1.12 CI：1.01，1.24；P=0.03）。这些危险因素结合起来，可以很好地识别有多次损伤风险的运动员。
发生需要医疗评估的复发性或第二次新 CrossFit 相关损伤的危险因素有多个，包括年龄较大、参与时间较长和春季参与。与初始评估和治疗相关的重复损伤的危险因素包括未接受高级成像、接受皮质类固醇注射或进行物理治疗。在该人群中，初始损伤的解剖部位与随后的损伤无关。
