项目/年龄

X ¯ ± s

X ¯ ± s

项目

X ¯ ± s

X ¯ ± s

3~4

5.1 ± 1.4

5.5 ± 1.6

击打固定球

6.2 ± 3.3

5.1 ± 1.9

4~5

6.8 ± 1.4*

7.5 ± 1.2*

6.0 ± 1.8

6.2 ± 2.1@

5~6

7.9 ± 0.5&

8.0 ± 0.0

6.8 ± 1.6

6.9 ± 1.2