Vera Angelina M, Barrera Bene D, Peterson Leif E, Yetter Thomas R, Dong David, Delgado Domenica A, McCulloch Patrick C, Varner Kevin E, Harris Joshua D
Houston Methodist Orthopedics and Sports Medicine, Houston, Texas, USA.
Orthop J Sports Med. 2020 Jul 28;8(7):2325967120937643. doi: 10.1177/2325967120937643. eCollection 2020 Jul.
Few investigations have examined dance-specific injury prevention programs (IPPs), and no published randomized controlled trials are available that evaluate IPPs for dance.
The implementation of an IPP will significantly reduce the risk of injury in professional ballet dancers.
Randomized controlled trial; Level of evidence, 2.
A randomized controlled trial was designed that entailed a superiority model for the intervention group. All professional dancers from a single ballet company were eligible to participate. Randomization and allocation were performed before the start of the season. The control group practiced and performed without change to preexisting standard operating practice. The IPP group was instructed to perform a 30-minute exercise program 3 times per week over the 52-week study period. Injuries were recorded. Standard continuous and categorical data comparisons and correlations were used. Cox proportional hazards regression models for recurrent failures were used wherein the hazard ratio indicates the relative likelihood of injury in the control versus intervention groups.
Of the 52 eligible dancers, 75% (n = 39) participated. Of these 39 dancers, 19 (9 males, 10 females; mean age, 26.6 ± 4.0 years) were randomized to the control group and 20 (11 males, 9 females; mean age, 25.1 ± 5.1 years) to the IPP group. No significant ( > .05) difference was found in baseline demographics between groups. A total of 116 injuries were recorded for the entire study population (49 IPP; 67 control). Traumatic and chronic injuries accounted for 54% and 46% of injuries, respectively. The injury rate was 82% less (IPP hazard ratio, 0.18; = -2.29; = .022) in the IPP group after adjustment for confounding variables, and time between injuries was 45% longer (IPP hazard ratio, 0.55; = -2.20; = .028) than for controls.
The present study is the first prospective randomized controlled investigation of an IPP for professional ballet. The results showed an 82% decrease in injury rate for the intervention group and an extended period from previous injury to subsequent injury.
NCT04110002 (ClinicalTrials.gov identifier).
很少有研究探讨针对舞蹈的损伤预防计划（IPP），目前尚无已发表的评估舞蹈IPP的随机对照试验。
实施IPP将显著降低职业芭蕾舞演员受伤的风险。
随机对照试验；证据等级，2级。
设计了一项随机对照试验，采用优势模型用于干预组。一家芭蕾舞公司的所有职业舞者均符合参与条件。在赛季开始前进行随机分组和分配。对照组按照现有的标准操作惯例进行练习和表演，不做改变。IPP组被要求在为期52周的研究期间每周进行3次30分钟的锻炼计划。记录损伤情况。使用标准的连续和分类数据比较及相关性分析。采用Cox比例风险回归模型分析复发性损伤，其中风险比表示对照组与干预组受伤的相对可能性。
52名符合条件的舞者中，75%（n = 39）参与了研究。在这39名舞者中，19名（9名男性，10名女性；平均年龄，26.6 ± 4.0岁）被随机分配到对照组，20名（11名男性，9名女性；平均年龄，25.1 ± 5.1岁）被分配到IPP组。两组间基线人口统计学特征无显著（> 0.05）差异。整个研究人群共记录到116次损伤（IPP组49次；对照组67次）。创伤性损伤和慢性损伤分别占损伤总数的54%和46%。在对混杂变量进行调整后，IPP组的损伤率降低了82%（IPP风险比，0.18；z = -2.29；P = 0.022），且两次损伤之间的时间比对照组长45%（IPP风险比，0.55；z = -2.20；P = 0.028）。
本研究是第一项针对职业芭蕾舞IPP的前瞻性随机对照研究。结果显示干预组的损伤率降低了82%，且从上一次损伤到下一次损伤的时间延长。
NCT04110002（ClinicalTrials.gov标识符）。
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