Table 4.

Occurrence of crosstalk in the brachioradialis (BRD) muscle during wrist flexion and extension tasks when sEMG is detected, from the BRD, using electrodes of different size and interelectrode distance. Absence of fine wire EMG in the BRD was used as the gold standard to determine the presence of crosstalk in the surface signal.

Task	Electrode Diameter 18 mm, IED 50 mm	Electrode Diameter 18 mm, IED 25 mm	Electrode Diameter 2.5 mm, IED 10 mm
Wrist extension	13/13	13/16	3/15
Wrist flexion	10/14	8/16	1/15
Finger extension	4/5	3/5	1/6
Total	27/32 (84%)	24/35 (69%)	5/36 (14%)

Modified from Merlo 2009 [153] with author’s permission.