For the investigation of the physical growth and body flexibility of Korean primary school girls, the atature,´, lower limb length, body weight, standing trunk flexion and trunk extension of 635 cases ranging from 7´to 10 Years of age were measured and the correlation coefficients were calculated among all of the items` in each age group.
The following results have been drawn.
1. The average statures are 117.58 cm in 7,122. 90 cm in 8,128.07 cm in 9 and 133.77 cm in 10 years
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of age, and the annual average growth is 5.40 cm.
2. The average lower limb lengths are 63.16 cm in 7, 66.74 cm in 8, 69.68 cm in 9 and 73.21 cm in 10 years of age and the annual average growth is 3. 35cm.
:3. The average body weights are 21.98 kg in 7, 24.02 kg in 8, 26.52 kg in 9 and 29.24 kg in 10 years of age, and annual average growth is 2.42 kg.
4. The average standing trunk flexions are measured 3.49 cm in 7, 3.73 cm in 8, 4.07 cm in 9 and 4.72 cm in 10 years of age.
:5. The average trunk extensions are measured 27. 35 cm in 7, 31.74cm in 8, 35. 56 cm in 9 and 39. 66 cm in 10 years of age.
6. The correlation coefficient between stature and lower limb length is over 0.8 and that between stature and body weight is over 0.6.
´7. The correlation coefficients between the physical measurements and the flexibilities are below 0.2. 8. The regression equations among all of the items in each age group are tabled for reference.
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