EFFECT OF NEUROMUSCULAR ELECTRICAL STIMULATION ON COUGH CAPACITY AND PULMONARY FUNCTION IN PATIENTS WITH ACUTE CERVICAL CORD INJURY

Author： Cheng Pao-Tsai Chen Chia-Ling Wang Chin-Man Chung Chia-Ying

Publisher： Medical Journals Limited

ISSN： 1650-1977

Source： Journal of Rehabilitation Medicine, Vol.38, Iss.1, 2006-01, pp. : 32-36

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Abstract

Objective: To assess the effectiveness of neuromuscular electrical stimulation (NMES) on cough capacity and prevention of pulmonary complication in patients with acute cervical cord injury. Design: A randomized controlled trial. Subjects: Twenty-six tetraplegic patients with cervical spinal cord injury, 13 in the NMES therapy group and 13 in the control group. Methods: NMES was applied to the clavicular portion of the pectoralis major and abdominal muscle. Pulmonary function tests were performed before and after therapy, and at 3months and 6months follow-up. The pulmonary complications in this 6-month follow-up period were also recorded. Results: After the 4-week therapy, and at 3months and 6months follow-up testing, patients in the NMES therapy group displayed significant improvement in their peak expiratory flow, forced expiratory volume in 1second, forced vital capacity, maximal expiratory pressure and maximal inspiratory pressure, compared with those in the control group ( p <0.05). Patients in the NMES therapy group also had fewer pulmonary complications in the follow-up period. Conclusion: NMES over the pectoralis and abdominal muscles might improve cough capacity and pulmonary function in cervical spinal cord injury with tetraplegia. This improvement might last for 6months. With this improvement, pulmonary complications were reduced.