Effects of Whole-Body Electromyostimulation on Low Back Pain in People with Chronic Unspecific Dorsal Pain: A Meta-Analysis of Individual Patient Data from Randomized Controlled WB-EMS Trials

Table 2

Baseline, absolute changes, and statistical parameters of the primary and secondary outcomes in the HIT and control group. ; n.s.: nonsignificant.

	WB-EMS; ()	Control; ()	Difference; MV (95%-CI)	p	SMD
Pain intensity at the lumbar spine (LBP)
Baseline			—	.619	—
Postintervention			—	—	—
Difference			.87 (0.24 to 1.50)	.008	0.84
Pain frequency at the lumbar spine (LBP)
Baseline			—	.563	—
Postintervention			—	—	—
Difference			0.64  (0.04  to  1.06)	.035	0.65

Index from 0 (no pain) to 7 (unbearable pain): WB-EMS. Index from 0 (no pain) to 7 (chronic pain): WB-EMS.