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With the intention of studying the probable correlations between the span of upper extremities and ball throwing distances and chin-up times, which are the items of the physical strength measurement system for an entrance examination for an university established by the Ministry of Education, the biometrical measurement and athletic record examination were performed in 3,259 korean male ranging from 16 to 19 years of age, and the correlation coeffients between them were calculated. The results obtained were as follows : 1. The span of upper extremities increases with age, as 166.2 cm in 16, 167.8cm in 18, and 167.8cm in 19 years of age. 2. The ball-throwing distances also increase with age, as 45.7m in 16, 48.4m in 17, 49.2m in 18 and 49.3m in 19 years of age. 3. The chin-up times, too, increase slightly with age, as 12.6 in 16, 13.0 in 17, 13.9 in 18 and 14.3 in 19 years of age. 4. The correlation coefficients between the span and ball-throwing records showed low values, as 0.271 in 16, 0.756 in 17, 0.185 in 18 and 0.188 in 19 years of age. 5. The correlation coefficients the span chin-up records showed almost negligible values, as -0.23 6 in 16, -0.031 in 17, -0.046 in 18 and 0.099 in 19 years of age. 6. The regression coefficients between the span and ball-throwing distance and chin-up times were calculated, and the regression equations were obtained and tabulated. The regression coefficient, especially between the span and the ball-throwing showed such values as 0.3308, 0.2918, 0.2116 and 0.2224 in 16, 17, 18 and 19 years of age.
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