Fig. 1
From: Central neuromuscular dysfunction of the deltoid muscle in patients with chronic rotator cuff tears
Experimental setup of the study (investigation of the right side). The motor-evoked potentials (MEP) of the deltoid muscle (DM) and first dorsal interosseus muscle (FDI) were recorded after transcranial magnetic stimulation (TMS) over the scalp during rest and slight voluntary activation of the DM. Voluntary effort of the DM was exerted with a constant abduction of the arm against resistance (strap) at an angle of 40°