Effect of Core Stability Training Monitored by Rehabilitative Ultrasound Image and Surface Electromyogram in Local Core Muscles of Healthy People

Table 4

Comparison of the IEMG of TrA between the monitoring group and control group in 0, 4, and 8 weeks (uV, mean ± SD).

		Monitoring group	Control group	Between-group value
Left	Baseline	25.52 ± 3.82	25.11 ± 3.78	0.680
	4 weeks	33.94 ± 4.33	29.43 ± 3.83	≤0.001
	8 weeks	40.55 ± 4.69	35.24 ± 4.46	≤0.001
Intragroup value (baseline vs 8 weeks)		≤0.001	≤0.001
Mauchly’s sphericity test W = 0.987 ()
Right	Baseline	25.67 ± 3.99	25.13 ± 4.40	0.617
	4 weeks	32.23 ± 3.19	29.50 ± 3.23	0.002
	8 weeks	38.52 ± 3.76	34.47 ± 3.84	≤0.001
Intragroup value (baseline vs 8 weeks)		≤0.001	≤0.001
Mauchly’s sphericity test W = 0.998 ()

Compared with baseline, .