Table 4. Comparison of pre-test and post-test differences between the three groups (N=30)

		CG	SSG	METG	F value	p value
Pulmonary function (%)	FEV(L)	−.15±.18	.21±.15	.12±.052	19.85	<0.01*
	FEV1 (L/sec)	.01±.07	.22±.11	.08±.098	13.93	<0.01*
	PEF (L/sec)	.45±.53	.13±.52	.08±.42	0.10	0.90
Kyphosis (deg)		−.10±1.1	−9.50±2.76	−9.70±5.89	20.75	<0.01*

Data are expressed as mean±SD. CG, control group; SSG, self-energy group; METG, muscle energy technique group; FVC; forced vital capacity; FEV1, forced expiratory volume in 1sec; PEF, peak expiratory flow;
p<0.05.