Department of Rehabilitation Sciences and Physiotherapy, Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium.
Med Sci Sports Exerc. 2012 Jun;44(6):993-8. doi: 10.1249/MSS.0b013e3182407ca0.
The purpose of this study was to investigate whether the participation in load bearing sports is associated with significant knee alignment adaptations in adolescent boys, which might cause a higher risk for the development of knee osteoarthritis in later life.
Five hundred twenty-one healthy boys (from 7 to 18 yr), selected from local primary and secondary schools, participated in the study. Two hundred sixty-five of them practiced competitive sports (track and field, field hockey, basketball, volleyball, tennis, badminton, and squash) for at least 3 h·wk(-1). The other remaining 256 boys did not practice any kind of sports. Genu varum/valgum was determined by measuring the intercondylar (IC) and intermalleolar (IM) distance with the subjects in a relaxed erect standing position. The IC and/or IM distance was measured using a caliper. Both measurements were combined to one parameter: the IC-IM distance. A one-way ANOVA was performed to analyze differences between the different age groups within the sporting and nonsporting boys separately. For each age group, the IC-IM distances of the sporting and nonsporting boys were compared by ANOVA with post hoc Bonferroni corrections.
A comparison between the sporting and nonsporting boys showed that the sporting boys had a significantly higher degree of genu varum from 13 to 15 yr or older (P = 0.01).
From the results of this study, it can be concluded that practicing load bearing sports in general is associated with the same knee varus alignment in adolescent boys as previously has been indicated in intense soccer-playing adolescents.
本研究旨在探究青少年男性参与负重运动是否与膝关节明显的对线改变有关，这可能会增加他们日后患膝骨关节炎的风险。
从当地的小学和中学中选择了 521 名健康男孩（年龄 7 至 18 岁）参与本研究。其中 265 名男孩参加了竞技运动（田径、曲棍球、篮球、排球、网球、羽毛球和壁球），每周至少运动 3 小时。其余 256 名男孩则没有进行任何形式的运动。在放松直立的姿势下，通过测量髁间（IC）和内踝间（IM）距离来确定膝内翻/外翻。使用卡尺测量 IC 和/或 IM 距离。将两个测量值组合成一个参数：IC-IM 距离。对运动和非运动男孩分别进行单因素方差分析，以分析不同年龄组之间的差异。对于每个年龄组，通过 ANOVA 比较运动和非运动男孩的 IC-IM 距离，并进行事后 Bonferroni 校正。
与非运动男孩相比，运动男孩从 13 岁到 15 岁或更大年龄时，膝内翻的程度明显更高（P = 0.01）。
本研究结果表明，一般来说，进行负重运动与青少年男性膝关节同样的内翻对线有关，这与之前在高强度足球运动青少年中观察到的结果一致。
