8LARSSON L, KARLSSON J.Lsometric and dynamic endurance as a function of age and skeletal muscle characteristics[J].Acta Physiol Scand, 1978,104:129-136.
9HELEEN H, HAMBERGVAN R, ALLARD ~, et al.Age-related diVer- ences in muscular capacity among workers[J].Int Arch Occup Environ Health, 2009,82 : 1115-1121.
10DE CASTRO CESAR, MARCELO, BORIN, et al.The effect of local mus- c|e endurance training on cardiorespiratory capacity in young women[J]. Journal of Strength & Con- ditioning Research, 2009, 23 (6) : 1637- 1643.