摘要
目的观察强化循环训练对骨塑形改建的影响，探讨其作为一种新的训练模式的科学性。方法雄性大鼠48只，随机均分为对照组和强化循环训练组（循环组）。每组分别于1、2、3、4、5、6周切取大鼠胫骨上段，进行皮质骨厚度（CT）、骨小梁平均骨壁厚度（MRT）、骨小梁类骨质表面（Sos）及骨小梁吸收表面（Sr）的百分比等骨形态学分析和比较。随机将某部新兵1303人分为对照组和实验组进行现场人群干预试验，实验组以“强化循环训练法”代替传统的“循序渐进”训练模式训练，以应力性骨折发生率为观察指标，进行组间比较。结果第4、5、6周，循环组反映骨形成情况的指标CT（1．37±0．09，1．86±0．14,1．94±0．23）、Sos（12．29±1．17，14．61±1．84，15．51±1．13）、MWT（56．37±2．52，57．28±3．01，58．23±2．93）明显高于对照组（P〈0．05），反映骨破坏吸收情况的指标Sr在循环组第4周升高后持续降低，而对照组则持续增加。实验组新兵连的应力性骨折发生率（6．1％）低于对照组（12．9％），骨应力性改建时限（2～6周）亦较对照组缩短（3～8周），训练成绩则显著提高。结论“强化循环训练”能缩短骨塑形改建时限。
Objective The purpose of this study is to evaluate the effects of lntensified cyclic tralrung on bone moulding reconstruction, and to found the scientific basis of intensific cyclic training as a new training methods. Methods 48 male rats were equally divided into two groups： intensive repetitive training group and control group. The upper segment of tibia was harvested from the animals at the 1st, 2nd, 3rd, 4th, 5th and 6th week after the onset of the experiment for the measurement of cortical thickness （CT）, mean wall thickness （MWT） and the percentage of osseous surface of trabeculae and surface area of trabecular absorption （Sr）. The data of intensive repetitive trained group were compared with those of the control group. 1 303 recruits were divided into control group and experimental group. In the experimental group, they were trained by intensive repetitive training program instead of the traditional training program. The incidence of stress fracture was compared between two groups. Results CT （1.37±0.09, 1.86±0.14, 1.94±0.23）, MWT （56.37±2.52, 57.28±3.01, 58. 23±2. 93） and Sos （12. 29±1.17, 14. 61 ± 1.84, 15. 51 ± 1.13） were higher in the training group than control groups at the fourth week, the fifth week and the sixth week, respectively （P〈0. 05）. The degree of bone destruction as represented by Sr was decreased after a rise at the fourth week in the experimental group, while it was elevated persistently in the control group. The incidence of stress fracture in the recruits under training with new program was lower （6. 1%） than that of the control group （12. 9%）. The stress adaptation period of recruits in the experimental group （2-6 weeks） was shorter than that of control group （3-8 weeks）. The result of training was im- proved significantly. Conclusion Intensive repetitive training can shorten the remodeling period of bone, accelerate osseous regeneration, and also strengthen mechanical performance. Intensive repetitive training is an improved model of training for recruits.
出处
《解放军医学杂志》
CAS
CSCD
北大核心
2006年第4期292-294,共3页
Medical Journal of Chinese People's Liberation Army
关键词
强化循环训练
塑形改建
骨折
应力性
军事人员
intensive repetitive training
modulations fractures, stress
military personnel
