Requa R K, Garrick J G
Center for Sports Medicine, Saint Francis Memorial Hospital, San Francisco, California.
Pediatr Clin North Am. 1990 Oct;37(5):1165-73. doi: 10.1016/s0031-3955(16)36981-4.
A review of nine studies of prophylactic knee braces worn by players in American tackle football lends some support for the use of double-hinged braces at the high-school level. Evidence for their use at the college level seems less persuasive. Caution should be exercised in interpreting these studies owing to the probable presence of bias and confounding variables and to difficulty in generalizing results beyond the study populations. The two studies that assigned braces randomly found lower injury rates for knees and knee ligaments among high-school and high-school size players. Conversely, a large, multiteam collegiate study found a significantly higher rate of knee injuries among brace users, a difference that remained when controlled for position, skill, and previous injury.
一项针对美式橄榄球运动员佩戴预防性护膝的九项研究的综述，为高中水平使用双铰链护膝提供了一些支持。在大学水平使用它们的证据似乎不那么有说服力。由于可能存在偏差和混杂变量，以及难以将结果推广到研究人群之外，在解释这些研究时应谨慎。两项随机分配护膝的研究发现，高中及高中体型的球员中，膝盖和膝关节韧带的受伤率较低。相反，一项大型的多校际研究发现，佩戴护膝的球员膝盖受伤率显著更高，在控制了位置、技能和既往损伤后，这一差异仍然存在。
