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The isometric muscle strength of 360 men and 250 women, aged 15 to 60 years, has been measured for 25 different muscle groups. The results have been treated so as to allow tables relating average normal strength to height and age to be prepared. Average standard deviations (S,D.) are calcu­ lated and presented for each test as a percentage of the mean isometric strength. Also, diagrams from which ideal body height can be estimated from sitting height or from leg length are given, A few comments on the relative strength of men and women and the influence of age are given in the form of curves. In an earlier communication, standard values for iso­ metric muscle strength of children aged 7 to 15 years were given as charts relating muscle strength to body height. The present communication presents standard values for isometric muscle strength of adult men and women in the age range 15

Analysis of generally perfomed manual industrial tasks and specifications of physical compatibility of male and female workers