Table 2. Surface EMG electrode placement and potential contribution of each muscle to different actions produced. (based on the method of Strimpakos et al., ).
Muscle group Electrode placements Action associated with muscles Reference electrode
Splenius capitis (SC) Over the muscle belly at C2/3 level between the uppermost parts of trapezius and sternocleidomastoid RPO, RLF, RAO, LPO, LLF, LAO C7 spinous process
Sternocleidomastoid (SCM) Over the muscle belly, about 1/3 of the length rostral to the sternal attachment RLF, RAO, LLF, LAO, F Acromion
Cervical paraspinal group (CPG); trapezius, capitis and cervicis groups) 2 cm from the midline at C4 level E, RPO, LPO, T1 spinous process