Sugimoto Dai, Mattacola Carl G, Mullineaux David R, Palmer Thomas G, Hewett Timothy E
*The Micheli Center for Sports Injury Prevention, Waltham, Massachusetts; †Division of Sports Medicine, Department of Orthopedics, Boston Children's Hospital, Boston, Massachusetts; ‡Cincinnati Children's Hospital Medical Center, Sports Medicine Biodynamics Center and Human Performance Laboratory, Cincinnati, Ohio; §Rehabilitation Science Doctoral Program, College of Health Science, University of Kentucky, Lexington, Kentucky; ¶School of Sport and Exercise Science, College of Social Sciences, University of Lincoln, Lincoln, United Kingdom; ‖Athletic Training Program, College of Education, Criminal Justice, and Human Services, University of Cincinnati, Cincinnati, Ohio; **Department of Pediatrics and Orthopaedic Surgery, College of Medicine, and Department of Biomedical Engineering, College of Engineering and Applied Sciences, University of Cincinnati, Cincinnati, Ohio, and Sports Medicine, Sports Health and Performance Institute, Department of Orthopaedics, School of Health and Rehabilitation Sciences, and Departments of Physiology & Cell Biology, Family Medicine and Biomedical Engineering, The Ohio State University, Columbus, Ohio.
Clin J Sport Med. 2014 Sep;24(5):422-8. doi: 10.1097/JSM.0000000000000059.
To evaluate hip abductor and adductor peak torque outputs and compare their ratios between sexes.
A cross-sectional laboratory-controlled study.
Participants visited a laboratory and performed an isokinetic hip abductor and adductor test. All participants performed 2 sets of 5 repetitions of concentric hip abduction and adduction in a standing position at 60 degrees per second. Gravity was determined as a function of joint angle relative to the horizontal plane and was corrected by normalizing the weight of the limb on an individual basis.
A total of 36 collegiate athletes.
Sex (20 females and 16 males).
Bilateral peak hip abductor and adductor torques were measured. The 3 highest peak torque values were averaged for each subject.
Independent t tests were used to compare sex differences in hip abductor and adductor peak torques and the abductor:adductor peak torque ratios. Males demonstrated significantly greater hip abductor peak torque compared with females (males 1.29 ± 0.24 Nm/kg, females 1.13 ± 0.20 Nm/kg; P = 0.03). Neither hip adductor peak torque nor their ratios differed between sexes.
Sex differences in hip abductor strength were observed. The role of weaker hip abductors in females deserves further attention and may be a factor for higher risk of knee pathologies.
评估髋外展肌和内收肌的峰值扭矩输出，并比较两性之间的比率。
横断面实验室对照研究。
参与者前往实验室进行等速髋外展和内收测试。所有参与者在站立位以每秒60度的速度进行2组，每组5次的向心髋外展和内收动作。根据相对于水平面的关节角度确定重力，并通过根据个体情况对肢体重量进行归一化来校正。
总共36名大学运动员。
性别（20名女性和16名男性）。
测量双侧髋外展肌和内收肌的峰值扭矩。每个受试者取3个最高峰值扭矩值的平均值。
采用独立样本t检验比较髋外展肌和内收肌峰值扭矩以及外展肌：内收肌峰值扭矩比率的性别差异。与女性相比，男性的髋外展肌峰值扭矩明显更大（男性1.29±0.24 Nm/kg，女性1.13±0.20 Nm/kg；P = 0.03）。两性之间的髋内收肌峰值扭矩及其比率均无差异。
观察到髋外展肌力量存在性别差异。女性较弱的髋外展肌的作用值得进一步关注，可能是膝关节病变风险较高的一个因素。
