游泳训练对大鼠脊髓腰骶膨大处前角运动神经元形态和数量的影响  

Effect of Swimming Training on the Morphology and Quantity Of the Anterior Horn Motor Neuron in Spinal Cord

作　　者：杜鹃[1] 白石[2] 赵晓慧[3] 刘涛[2] 

机构地区：[1]北京邮电大学体育部,北京100876 [2]西安体育学院运动人体科学系,西安710068 [3]西安建筑科技大学体育系,西安710055

出　　处：《西安体育学院学报》2007年第2期87-90,101,共5页Journal of Xi'an Physical Education University

摘　　要：目的探讨运动训练对脊髓前角运动神经元形态和数量的影响。方法以健康纯种雄性SD大鼠54只作为实验对象。大鼠体重200±26 g,鼠龄2月。54只大鼠,随机分成三组,即对照组(n=17只)、一般负荷组(n=17)和过度负荷组(n=20)。对照组不进行训练;一般负荷组和过度负荷组总共训练8周,每周训练6天。训练结束后,使大鼠休息24 h。每组大鼠各选5只进行研究。结果一般负荷组和过度负荷组脊髓前角运动神经元细胞体、细胞质、细胞核和核仁切面面积均显著性大于对照组。结论长期的不同负荷游泳后提高了大鼠低级中枢处理运动信息的能力。Objective To evaluate the effect of sports training on the morphology and quantity of the anterior horn motor neuron in spinal cord.Methods 54 SD male rats of two months,weighted 200±26g are divided at random into 3 groups： A（n=17） contrast group;B（n=17） normal-load group,and C（n=20） over-load group.Group B and C were trained for 8 weeks by using circular flowing water in a swimming pool,and 6 days per week.After 24 hours of the last training,5 rats of each group have been chosen as the research.Results The result shows that the area of cell body,cytoplasm,nucleus and nucleolus of the anterior horn motor neuron of the normal-load group and the over-load group are higher than those of control group.Conclusions It indicates that training increase the capacity of the low central neuron of rat dealing with messages.

关 键 词：游泳训练 运动神经元 形态 数量 

分 类 号：G804.4[文化科学—运动人体科学]