Fig. 5

sEMG signals acquisition using EMGworks Acquisition 4.8.0 software for nine different muscles on upper body (brachioradialis (# 1 (BR)), biceps brachii (# 2 (BB)), triceps brachii (# 3 (TB)), infraspinatus (# 4 (IS)), upper trapezius (# 5 (UT)), paraspinal cervical spine (# 6 (PCS)), mid trapezius (# 7 (MT)), lower trapezius (# 8 (LT)), anterior deltoid (# 9 (AD))).