Table 2.

Baseline of subjects before experiment.

	Normal eyesight				Myopia				P1/P2
	T1	T3	T5	T7	T2	T4	T6	T8
Age (Years)	6.40 ± 0.50	6.44 ± 0.51	6.46 ± 0.51	6.48 ± 0.51	6.50 ± 0.50	6.56 ± 0.51	6.46 ± 0.50	6.48 ± 0.50	0.95/0.91
Gender (M/W)	13/12	13/12	14/10	13/12	11/13	14/11	13/13	16/9	0.96/0.60
Dioptre (D)	1.56 ± 0.25	1.52 ± 0.20	1.62 ± 0.23	1.49 ± 0.23	−1.44 ± 0.48	−1.39 ± 0.53	−1.56 ± 0.57	−1.60 ± 0.58	0.23/0.49

T1 and T2 represent outdoor exercise group, T3 and T4 represent outdoor control group, T5 and T6 represent indoor exercise group, T7 and T8 represent indoor control group, P1 is significant difference between normal vision groups, P2 is significant difference between myopia groups, *means p < 0.05, *means p < 0.01.