Abstract: Grip strength of 5912 Zhejiang children, aged from 5 to 18, has been measured by means of dynamometer. Results have been tabulated and analyzed as following:1. The growth curve of the absolute grip strength is similar to that of other physical development characteristics, while the growth rate shows an evident tendency of decrement.2. The development of the absolute variation (standard deviation) of grip strength is similar to the growth curve, with an upward tendency; and the development of the relative variation (coefficient of standard deviation) is similar to that of the growth rate, with a downward tendency.3. The average value of the right hand is greater than that of the left in every age group and both sexes. The absolute difference between the right and left hand increases with age, while the relative difference decreases with age.In most cases, the right hand grip strength is greater than the left, the percentages of these cases in both sexes are equal and increases with age.4. Grip strength of the female is smaller than that of the male in every age group, being about 85% of the male before age 11, rising to 92% at age 14, and dropping to 69% at age 18.

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