Hip Strength and Knee Pain in High School Runners: A Prospective Study

Hip Strength and Knee Pain in High School Runners: A Prospective Study
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DOI：
10.1016/j.pmrj.2011.04.007
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发表时间：
2011-09-01
期刊：
PM&R
影响因子：
2.1
通讯作者：
Smith, Jay
Smith, Jay
中科院分区：
医学4区
文献类型：
--
作者：
Finnoff, Jonathan T.;Hall, Mederic M.;Smith, Jay

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目的：为了确定损伤前髋关节肌肉无力是否与高中跑步运动员髌股关节疼痛（PFP）的发展有关，设计：前瞻性队列研究，设置：学术机构运动医学中心，参与者：高中跑步运动员，方法：在跑步季节开始时评估高中跑步运动员的基线髋关节力量。在发展PFP的运动员中重复进行力量测试。受伤和非受伤groups.Results：6受伤发生在5的98名受试者谁完成了这项研究之间的峰值髋关节肌肉力量和强度比进行了比较。受伤受试者的基线髋关节内外强度比低于未受伤受试者（P = 0.008）。在受伤组中，髋关节外展和外旋强度从受伤前到受伤后下降（分别为P = 0.002和P = 0.01）。Logistic回归分析表明，基线髋关节外展力量越大，（比值比= 5.35，95%可信区间[CI] 1.46-19.53; P <0.01）和外展-内收力量比增加了损伤的风险（比值比= 14.14，95%CI 0.90-221.06; P = 0.05），损伤前髋关节外旋与内旋强度比值越大，损伤风险越低（比值比< 0.01，95%CI
Objective: To determine whether pre-injury hip muscle weakness is associated with the development of patellofemoral pain (PFP) in high school running athletes.Design: Prospective cohort study.Setting: Academic institution sports medicine center.Participants: High school running athletes.Methods: Baseline hip strength of high school running athletes was assessed at the beginning of the running season. Strength testing was repeated in athletes who developed PFP. Peak hip muscle strengths and strength ratios were compared between the injured and non-injured groups.Results: Six injuries occurred in 5 of the 98 subjects who completed the study. The baseline hip external-to-internal strength ratio was lower in injured than in uninjured subjects (P = .008). In the injured group, hip abduction and external rotation strengths decreased from pre-injury to post-injury (P = .002 and P = .01, respectively). Logistic regression analysis demonstrated that a greater baseline hip abduction strength (odds ratio = 5.35, 95% confidence interval [CI] 1.46-19.53; P < .01) and abduction-to-adduction strength ratio increased the risk of injury (odds ratio = 14.14, 95% CI 0.90-221.06; P = .05), and a greater pre-injury hip external-to-internal rotation strength ratio decreased the risk of injury (odds ratio < 0.01, 95% CI