Fig. 1.

MRC scores and EMG grades for evaluated muscles of individual patients. MRC score: 5; 4; ≤3; no data. Grades for spontaneous activities (S): 0, none; 1, few; 2 moderate (observed following about half of insertions) and 3 (observed following almost every insertion); no data. Grades for voluntary activities (V): 0, normal; 1, reduced; 2 discrete and 3 single oscillation; no data. Del, deltoid; Isp, infraspinatus; BB, biceps brachii; BR, brachioradialis; WE, wrist extensors; ECRL, extensor carpi radialis longus; ECRB, extensor carpi radialis brevis; PT, pronator teres; TB, triceps brachii; WF, wrist flexors; FCR, flexor carpi radialis; FCU, flexor carpi ulnaris; ED, extensor digitorum; PSM, paraspinal muscles; S, spontaneous activities; V, voluntary activities; MRC, Medical Research Council; CSR, cervical spondylotic radiculopathy.