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Journal of the Korean Academy of Rehabilitation Medicine 2002;26(1):81-85.
Effect of Visible Light Therapy in Patients with Somatic Pain.
Kim, Yun Hee , Ko, Myoung Hwan , Yang, Sun Ho , Kim, Yang Gyun
1Department of Rehabilitation Medicine, Chonbuk National College of Medicine, Research Institude of Clinical Medicine, Korea. mhko@moak.chonbuk.ac.kr
2Department of Bionics, Chonbuk National University, Korea.
통증환자에서 가시광선을 이용한 광치료의 효과
김연희, 고명환, 양선호, 김남균1
전북대학교 의과대학 재활의학교실, 임상의학 연구소, 1전북대 의용생체공학과

The purpose of this study is to evaluate the effect of visible light therapy for the management of somatic pain.

Subjects consisted of 42 patients with pain and were divided into two groups; control (n=22) and experimental (n=20) groups. Control group received conventional physical therapy only, while experimental group received additional light therapy with blue light (light intensity 4080 lux, wave length 581 nm, distance from lamp 5 cm). Intensity of pain was assessed by visual analogue scale (VAS) and McGill pain questionnaire. Sympathetic skin response was measured to assess the status of autonomic nervous system. VAS and McGill pain questionnaire were administered before treatment and at 1 day, 2 days, 3 days, 1 week, and 2 weeks after treatment. Sympathetic skin response were performed before and 2 weeks after treatment.

1) In both experimental and control groups, VAS became significantly lower at two weeks after treatment compared to pretreatment scale (p<0.05). 2) McGill pain questionnaire showed significantly lower scores two weeks after treatment compared to pretreatment score, only in experimental group (p<0.05). 3) Experimental group showed significantly lower McGill pain questionnaire score than control group at two weeks after treatment (p<0.05). 4) Latency and amplitude of sympathetic skin response showed no significant difference between experimental and control groups.

Visible light therapy can be used as an effective therapeutic modality for the management of symptomatic pain in combination with conventional physical therapy. (J Korean Acad Rehab Med 2002; 26: 81-85)

Key Words: Visible light therapy, Visible light therapy, Visual analogue scale, McGill pain questionnaire, Sympathetic skin response


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