Table 2. Comparison of TIN, TIM, PPO, PTO, PRO and PSA between the adjustment group and stretching group (mean ± SD) (units: TIN, TIM, PPO, PTO, and PRO degree, PSA-mm).

	Category	Adjustment group	Stretching group
Before intervention	TIN	2.4±1.9	2.5±1.3
	TIM	2.7±2.6	2.5±1.5
	PPO	2.5±1.5	2.7±1.8
	PTO	3.6±2.4	3.2±2.9
	PRO	2.5±2.3	2.5±2.0
	PSA	5.5±3.8	5.1±3.4
After intervention	TIN*	1.2±0.9	2.3±1.4
	TIM*	1.1±0.8	2.7±1.6
	PPO*	1.1±0.8	2.8±1.7
	PTO*	1.1±0.3	3.4±2.6
	PRO	1.4±0.7	2.3±2.2
	PSA*	2.8±1.4	4.7±3.1
Change between before and after intervention	TIN	1.1±2.2	0.2±2.1
	TIM*	1.5±2.4	−0.1±1.3
	PPO*	1.3±1.7	−0.1±2.1
	PTO*	2.4±2.5	−0.1±4.9
	PRO	2.7±3.5	0.3±5.0
	PSA	1.0±2.6	0.2±2.7

*p<0.05