Abstract: Objective To investigate the effect of pulse therapy combined with sling exercise therapy(SET) on cervical spondylotic radiculopathy(CSR) and its impact on cervical biomechanics and cervical muscle fatigue. 
Methods A total of 162 patients with CSR were selected and divided into the control group(n=81) and the observation group(n=81) according to random number table method. The control group was treated with SET for 4 weeks, while the observation group was treated with pulse therapy combined with SET for 4 weeks. Cervical function, pain, cervical biomechanics, cervical muscle fatigue and complications were compared between two groups before and after treatment. 
Results After treatment, Japanese Orthopedic Association(JOA) score, cervical flexion angle, cervical extension angle, left flexion angle, right flexion angle, left rotation angle, right rotation angle, integrated electromyography(IEMG) value of cervical extensor muscle group, mean power frequency(MPF) and median frequency(MF) in two groups were higher than those before treatment(P＜0.05), while neck disability index(NDI) and visual analogue scale(VAS) score were higher than those before treatment(P＜0.05). The JOA score, cervical flexion angle, cervical extension angle, left flexion angle, right flexion angle, left rotation angle, right rotation angle, IEMG of cervical posterior extensor muscle group, MPF and MF in the observation group were higher than those in the control group(P＜0.05), while the NDI index and VAS score were lower than those in the control group(P＜0.05). There was no significant difference in the incidence of complications between two groups(P＞0.05). 
Conclusion Pulse therapy combined with SET can effectively improve cervical biomechanics, reduce muscle fatigue and improve cervical function in patients with CSR.

Key words: cervical spondylosis, pulse therapy, sling exercise therapy