Effect of Swimming Exercise on Biomechanical Characteristics of Femur and Vertebrae of Rats
Effect of Swimming Exercise on Biomechanical Characteristics of Femur and Vertebrae of Rats
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发表时间：
2005
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通讯作者：
Bum-Ho Bin
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作者：
Bum-Ho Bin
【摘要】：探讨游泳运动对大鼠股骨和椎骨生物力学特性的影响。将36只SD大鼠随机分为对照组(n=18)和实验组(n=18),每天游泳30 min,共6周。取新鲜股骨和椎骨作为标本制作测试样品,在微机多功能试验机上进行三点弯曲和压缩试验,检测样品的生物力学参数和生物力学参数。结果显示,股骨的生物力学特性发生了不同程度的变化,弹性模型、最大载荷、屈服应力和应变均无明显变化(P0.05),但最大应力、最大应变和能量显着下降(P0.05)。椎体压缩试验显示,除能量外,最大载荷、屈服应力、最大应力、屈服应变和骨矿参数量均显着增加(P0.05)。 (P<0。05)。提示游泳运动有利于椎骨的生物力学特性，使椎骨发生适应性变化。根据国内外相关研究，游泳运动是预防腰痛、骨质疏松的良好运动方法之一，值得临床进一步研究。
This paper discussed the effect of swimming exercise on biomechanical characteristics of femur and vertebral of rats.36 SD rats were randomly divided into control group (n=18) and experimental group (n=18) with 30 min swimming per day,and total 6 weeks.The fresh bones of femur and vertebrae were taken as specimens to produce test sample.Three-point bending and compression test were used to test the samples on the computerized multifunction test machine for the biomechanical parameters and standard statistical test.The result showed that the biomechanical characteristics of femur took place different changes,the elastic model,the maximal load,the yield stress and strain had not remarkably change (P0.05),but maximal stress,maximal strain and energy decreased significantly (P0.05).Vertebral compressive test showed that the maximal load,yield stress,maximal stress,yield strain and amount of bone mineral parameter increased significantly (P0.05) except for the energy (P0.05).It suggested that biomechanical characteristics of vertebrae could benefit from swimming exercise and vertebrae took place the adaptation change.According to relevant research at home and abroad,swimming exercise was one of good exercise methods to prevent the pain of low back and osteoporosis.It was worth us to make further clinical study.