Janssen I, Brown N A T, Munro B J, Steele J R
Biomechanics Research Laboratory, Faculty of Science, Medicine and Health, University of Wollongong, Wollongong, New South Wales, Australia; AIS Movement Science, Australian Institute of Sport, Canberra, Australia.
Scand J Med Sci Sports. 2015 Apr;25(2):265-72. doi: 10.1111/sms.12172. Epub 2014 Jan 15.
Patellar tendinopathy is the most common overuse knee injury in volleyball, with men reporting more than twice the injury prevalence than women. Although high patellar tendon loading is thought to be a causative factor of patellar tendinopathy, it is unknown whether between-sex variations in landing technique account for differences in patellar tendon loading. It was hypothesized that male volleyball players would display differences in landing technique and would generate higher patellar tendon loading than their female counterparts. The landing technique and patellar tendon loading of 20 male and 20 female volleyball players performing a lateral stop-jump block movement were collected. Independent t-tests were used to identify any between-sex differences in landing technique with the data grouped to account for differences in jump height and in anthropometry. Male volleyball players were taller and heavier, landed from a higher height, displayed differences in landing kinematics, generated a significantly greater knee extensor moment, and experienced higher patellar tendon loading than female players when all 40 participants were compared. However, when participants were matched on jump height, they generated similar patellar tendon loading, irrespective of their sex. These results imply that jump height is a more important determinant of patellar tendon loading than sex.
髌腱病是排球运动中最常见的过度使用性膝部损伤，男性报告的损伤患病率是女性的两倍多。尽管髌腱高负荷被认为是髌腱病的一个致病因素，但落地技术的性别差异是否导致髌腱负荷差异尚不清楚。研究假设，男性排球运动员在落地技术上会表现出差异，并且会比女性同行产生更高的髌腱负荷。收集了20名男性和20名女性排球运动员进行侧向急停跳拦网动作时的落地技术和髌腱负荷数据。使用独立样本t检验来确定落地技术方面的性别差异，数据分组以考虑跳跃高度和人体测量学的差异。当对所有40名参与者进行比较时，男性排球运动员更高、更重，从更高的高度落地，在落地运动学上表现出差异，产生显著更大的伸膝力矩，并且髌腱负荷比女性运动员更高。然而，当参与者在跳跃高度上匹配时，无论性别如何，他们产生的髌腱负荷相似。这些结果表明，跳跃高度是髌腱负荷比性别更重要的决定因素。
