Effect of Functional Electrical Stimulation on Clearance of Broncheal Secretion in Patients with High Spinal Cord Injury. |
Shin, Ji Cheol , Kang, Seong Woong , Park, Chang Il , Kang, Youn Joo , Kim, Sung Weon , Ahn, Jae Ki |
1Department of Rehabilitation Medicine, Yonsei University College of Medicine. 2Research Institute of Rehabilitation Medicine, Yonsei University College of Medicine. |
상부 척수손상 환자에서 기능적 전기자극이 객담 배출능력에 미치는 효과 |
신지철, 강성웅, 박창일, 강윤주, 김성원, 안재기 |
연세대학교 의과대학 재활의학교실 및 재활의학연구소 |
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Abstract |
Objective To determine the effects of abdominal functional electrical stimulation(FES) on the ability to clear the broncheal secretion in high spinal cord injury(SCI) patients. Method Eleven cervical SCI male patients were assessed for the pulmonary function using a routine pulmonary function test. Maximal expiratory pressure(MEP) and peak expiratory flow rate(PEFR) measurements were recorded during (1) spontaneous cough attempts and (2) cough attempts with FES applied to the abdominal wall. Each measurement was recorded in supine and sitting positions. The portable FES unit was set at 24 Hz, with a pulse width of 150 microsecond(ㄍs), an asymmetrical biphasic waveform and a maximal intensity to 90 mA. Results All subjects had a decreased vital capacity, peak expiratory flow and increased ratio of forced expiratory volume at one second(FEV1) to the forced vital capacity(FVC) in a routine pulmonary function test. These cervical SCI patients were greatly reduced the MEP and the PEFR when they coughed spontaneously. FES-assisted coughing increased the MEP and PEFR in all patients in a supine and sitting positions with statistical significance(p<0.05). Conclusion By increasing the MEP and PEFR, abdominal FES could enhance the coughs in high SCI patients. Abdominal FES can be a useful physical therapy for the prevention and treatment of pulmonary complications in high SCI patients at the bed side as well as at homes. |
Key Words:
High spinal cord injury, Functional electrical stimulation, Maximum expiratory pressure, Peak expiratory flow rate |
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