Table 2. Comparison of TIN, TIM, PPO, PTO, PRO and PSA between training group and control group (mean ± SD) (unit: TIN, TIM, PPO, PTO, PRO-degree, PSA-mm).

	Category	Training G	Control G
Pre-test	TIN	2.56 ± 1.36	2.43 ± 0.89
	TIM	2.43 ± 2.25	2.31 ± 1.44
	PPO	2.25 ± 0.85	2.31 ± 1.25
	PTO	2.68 ± 1.30	2.50 ± 1.89
	PRO	2.43 ± 0.89	2.25 ± 1.57
	PSA	4.25 ± 1.91	4.12 ± 1.85
Post-test	TIN*	1.43 ± 0.72	2.31 ± 1.30
	TIM*	1.31 ± 0.60	2.18 ± 1.16
	PPO*	1.43 ± 0.62	2.43 ± 1.15
	PTO	1.87 ± 0.88	2.56 ± 1.50
	PRO	1.50 ± 0.63	2.12 ± 1.50
	PSA	2.87 ± 1.25	3.56 ± 1.99
Change between pre- and post-test	TIN	1.12 ± 1.40	0.12 ± 1.54
	TIM	1.12 ± 2.21	0.12 ± 1.25
	PPO*	0.81 ± 1.04	−0.12 ± 1.45
	PTO	0.81 ± 1.37	−0.06 ± 3.10
	PRO	0.93 ± 1.18	0.12 ± 2.09
	PSA	1.37 ± 1.96	0.56 ± 2.68

*p<0.05