Table 4.

Comparisons of quality of life assessed by SGRQ.

	CG (n=17)		LG (n=16)		LEG (n=17)
	Pre	Post	Pre	Post	Pre	Post
Symptom, score	55.94 ± 16.92	59.88 ± 20.32	59.13 ± 18.45	32.31 ± 17.86∗∗	53.18 ± 15.99	20.82 ± 10.64∗∗
Impact, score	30.71 ± 15.03	37.94 ± 17.68∗	29.50 ± 20.29	16.94 ± 14.01∗∗	31.06 ± 14.86	16.65 ± 10.99∗∗
Activity, score	45 ± 17.22	52.71 ± 24.43∗	45.56 ± 19.54	29.63 ± 14.17∗∗	45.71 ± 14.33	33 ± 9.11∗∗
Total, score	39.18 ± 14.96	45.76 ± 16.77∗	39.38 ± 17.69	23.5 ± 11.82∗∗	39.18 ± 12.82	22.47 ± 7.97∗∗

SGRQ, St. George's Respiratory Questionnaire; CG, control group; LG, Liuzijue exercise group; LEG, Liuzijue exercise combined with elastic-band resistance exercise group.

Notes: data was expressed as mean ± SD. The paired samples t-test was used for comparisons within group, and the one-way analysis of variance (ANOVA) and Bonferroni test were used for comparisons among groups. The significance level was set at P<0.05. Difference was significant between the control group and the intervention group in all domains of SGRQ (P < 0.01), while no significant difference has been found between the two training groups.

^∗p < 0.05, comparisons are significant within groups. ^∗∗p < 0.01, comparisons are significant within groups.