从X线片研究不同类型的体育运动对胫骨内、外径的影响

本文对45名男少年(依其从事运动情况分为举重、跳跃组,不从事专项运动者为普通组)胫骨正位和侧位X线片进行了观察、测量,并对三组胫骨的髓腔径、内外横径比和内外矢状径比等指标进行了统计分析。结果表明:不同机能对髓腔大小的影响既在某些方面相似,又在另一些方面出现不同的趋势;对内外径比的某些方面也有不同影响;内外径比变化趋势并非国外某些学者所记载的以8:11最为适宜。

EFFECTS ON THE INNER AND OUTER DIAMETERS OF TIBIA BY DIFFERENT SPORTS ON X-RAY FILM

The author made careful observations and measurements on the facade and flank X-ray photographs of the tibias of 45 boys (including the control group, weight-lifting group and jumping group in accordance with their sports specialities). Statistical analyses of the related indices were taken. There is no difference between sports (weight-lifting and jumping) and control groups with regard to the proportions of inner and outer transverse diameters at upper part of tibia. The differences between weight-lifting and control groups at middle and lower parts of tibia are significant. The ratio of inner to outer sagittal diameters in sports groups is lower than that in control group. The differences are mainly due to the increase of the thickness of the bone wall.