【摘要】 <正> 肌肉耐力是反映肌肉发育及其机能状况的一个灵敏指标。测定肌肉耐力的变化,不仅能够评价体育锻炼和劳动对青少年机能发育的作用,而且可以作为评价学生脑力疲劳及体力疲劳或某些毒物对机体影响的指标之一。如在观察业余夜校少年的生理变化时,发现在学习及劳动以后肌耐力均减小;等在研究少年的身体发育和性发育时,报告不同类型学校学生的肌更多还原

【Abstract】 This paper introduced a simple dynamometer for measuring the endurance of muscle strength,its design,principles and method of using.The endurance of the tight hand muscle of 1369 students from 13 to 20 years of age was measured.It was found that the right hand muscle endurance in grasping increased with the increase in age,but the curve of increase was wavy.The curves of the mean value for boys and for girls crossed each other twice,very much like the curves of increase of mean height and weight with age in both sexes.The increase of endurance was greatest at 14-15 years of age in girls,and at 14 and 17 years in boys.更多还原