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Journal of the Korean Academy of Rehabilitation Medicine 2004;28(3):208-213.
Effect of Visible Light Therapy in Stroke Patients.
Ko, Myoung Hwan , Yang, Sun Ho , Kim, Nam Gyun , Kim, Yun Hee
1Department of Physical Medicine and Rehabilitation, Chonbuk National University Medical School, Research Institude of Clinical Medicine, Korea.
2Department of Bionics, Chonbuk National University, Korea.
3Department of Physical Medicine and Rehabilitation, Samsung Medical Center, College of Medicine, Sungkyunkwan University, Korea. yunkim@smc.samsung.co.kr
뇌졸중 환자에서 가시광선을 이용한 광치료의 효과
고명환, 양선호, 김남균1, 김연희2
전북대학교 의과대학 재활의학교실, 임상의학연구소, 1전북대학교 의용생체공학과, 2성균관의대 삼성서울병원 재활의학교실
Abstract
Objective
The aims of this study was to evaluate the effects of visible light therapy for the stroke patients.
Method
Thirty stroke patients were enrolled and classified into two groups, experimental (n=19) and control group (n=11). Control group received conventional rehabilitation therapy. Experimental group received additional light therapy with red light (intensity 962 lux, wave length 620 nm) on wrist, elbow, and shoulder joint area (diameter 10 cm) at the same time, 3 times per day, 20 minutes per session, 5 days per week, for 2 weeks. All patients were assessed their paralytic upper extremity functions using manual muscle testing, two point discremination test (2-PD), Semmes-Weinstein monofilament test, and modified Ash-worth scale. To evaluate neurophysiological effects of light therapy, sympathetic skin response, thermography, and doppler ultrasound on radial artery were performed.
Results
Compared to the control group, the experimental group significantly improved in the 2-PD test, Semmes- Weistein monofilament test, and the hand grip power. Neurophysiologic parameters showed no significant difference between experimental and control groups.
Conclusion
Visible light therapy maybe used as an effective therapeutic modality for improving hand function of stroke patients. Further studies are required to define the mechanism of effects on paralytic extremity of visible light. (J Korean Acad Rehab Med 2004; 28: 208-213)
Key Words: Visible light therapy, Stroke, Paralytic upper extremity, Sensory


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