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Table 4 Correlation between strength and shoulder motion active range of motion, and grey matter volume (BA = Broadmann area, N.S. = not significant, CL = contralesional; values without CL are ipsilesional – on the side of the brain lesion)

From: Virtual reality-based treatment for regaining upper extremity function induces cortex grey matter changes in persons with acquired brain injury

Brain region

Grasp strength

Shoulder abduction

Shoulder flexion

Elbow flexion

Precentral gyrus

r = 0.6 / p = 0.04

N.S.

N.S.

r = 0.6 / p = 0.03 CL

Supplementary motor area

R = −0.6 / p = 0.03

r = 0.65 / p = 0.02

r = 0.8 / p = 0.003 CL

r = 0.8 / p = 0.003

r = 0.8 / p = 0.004 CL

r = −0.6 / p = 0.03

BA 6

N.S.

r = 0.6 / p = 0.03

r = 0.6 / p = 0.03

N.S.