摘要
目的:以杨浦区150名40-69岁的健康运动女性作为研究对象,探讨中老年运动女性踝关节肌力的年龄变化特征。方法:实验于2005-03/05在上海体育学院体质测试中心完成测试。选择上海杨浦区150名身体健康的运动女性,按年龄分为3组:40-49岁组、50-59岁组、60-69岁组,每组50人。所有受试者在瑞士CONTREX公司提供的Contrex肌力测试系统上进行踝关节60(°)/s的等速肌力测试。观察运动女性踝关节肌力的衰退特征。结果:受试者的踝关节屈肌最大力矩/kg、屈肌最大功率/kg与年龄呈负相关(r=-0.449,-0.451,p=0.002),且在0.01水平上相关具有高度显著性;踝关节伸肌最大力矩/屈肌最大力矩与年龄呈正相关(r=0.516,p=0.00);女性在50-59岁期间,踝关节伸、屈肌力量随年龄增大而呈现迅速衰退的趋势,在60-69岁期间出现了伸、屈肌衰退的明显不平衡,屈肌快于伸肌。结论:中老年运动女性踝关节肌力的衰退具有明显的部位和年龄特征;女性在60-69岁期间进行适当的体育运动可以更为有效地延缓踝关节屈肌的衰老;强加对60-69岁期间女性踝关节屈肌力量的训练以缩小伸、屈肌间衰退的差异可能是预防跌倒的有效途经。
AIM： To investigate the decline features of ankle muscle strength in healthy middle--aged and old sports women.. METHODS： The experiment was carried out in the Physical Fitness Testing Center of Shanghai Institute of Physical Education from March to May 2005. 150 healthy sports women were selected from Yangpu community, Shanghai, and divided into 40--49,50--59 and 60--69 years groups with 50 people in each group. All subjects performed a task that their ankle muscle strength was tested by a computerized dynamometer named Contrex （made by CONTREX, Sweden） under isokinetic 60（°）/s. The decline features of ankle muscle strength were analyzed. RESULTS： 150 subjects were all involved in the result analysis. OThe maximal torque per kg and power of ankle flexor were negatively correlated with age（r=-0. 449, -0. 451, p =0. 002）,and the correlation was significant at the 0. 01 level. （1）The ratio of maximal torque of ankle extensor and flexor were positively correlated with age（r= 0. 516, p= 0. 00） （2）The maximal torque of ankle extensor and flexor declined rapidly with age in 50--59 years women, there was a significant imbalance between ankle extensor decline and flexor, that is , the flexor declined faster than extensor. CONCLUSION： （1）The decline of ankle flexor and extensor strength in sports middle--aged and old women shows a correlation with age and muscle place; （2）That 60--69 years women participate in some appropriate sports, may stay the decline of ankle flexsor strength more effectively; （3）To intensify ankle flexor strength training in 60--69years women for reducing difference between ankle flexor decline and extensor, will be an effective way to prevent accidental fall..
出处
《南京体育学院学报（自然科学版）》
2009年第1期24-27,共4页
Joournal of Nanjing Institute of Physical Education:Natural Science
关键词
中老年
运动女性
踝关节肌力
衰退特征
middle--aged and old
sports women
ankle muscle strength
the decline feature
