Effects of Wuqinxi in the Patients with Chronic Low Back Pain: A Randomized Controlled Trial

Table 5

The changes in electrical activities of trunk muscle strength from baseline to 24 weeks.

Muscle	Difference in mean change (95% CI)		Between-group difference (95% CI)
	WQXG	GEG	GEG vs. WQXG	P
RA
30°/s	10.3(1.7 to 18)	11.7(1.9 to 21.5)	−1.4(−13 to 10.2)	0.78
90°/s	2.1(−14.1 to 18.2)	7.4(−2.3 to 17.1)	−5.3(−14.1 to 9.3)	0.64
OEA
30°/s	8.2(4.3 to 12.1)	−2.2(−3.6 to −0.9)	10.4(4.3 to 24.4)^#	0.048
90°/s	3.0(−9.8 to 15.9)	−7.5(−22.3 to 7.3)	10.5(1.9 to 19.1)^#	0.045
ES
30°/s	−1.6(−16.6 to 13.4)	3.2(−6.7 to 33.2)	−4.8(−24.7 to 10.1)	0.24
90°/s	3.3(−7.7 to 14.3)	7.8(−8.7 to 22.8)	−4.5(−19.6 to 10.7)	0.69
MF
30°/s	8.4(2.9 to 13.9)	15.4(1.9 to 38.9)	−7(−17.8 to 4.3)	0.34
90°/s	21.3(4.4 to 38.2)	9.1(3.3 to 14.9)	12.2(−10.7 to 35.1)	0.42

The electrical activities of RA, OEA, ES, and MF were measured in the angular velocity of 30°/s and 90°/s, respectively, to assess trunk muscle strength after the end of the intervention. The changes in mean were calculated from the difference between the current value and the baseline data. Compared with baseline, ; compared with the GEG at the same time point, ^#. CI, confidence interval; WQXG, Wuqinxi group; GEG: general exercise group; RA, rectus abdominis; OEA, obliquus externus abdominis; ES, erector spinae; MF, multifidus.