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Journal of the Korean Academy of Rehabilitation Medicine 2006;30(1):62-68.
The Usefulness of Trunk Accelerometry in Evaluating Walking Ability of Hemiparetic Patients.
Choi, Yu Nam , Park, Si Woon , Jang, Soon Ja , Lee, Jae Young , Kim, Young Ho , Lee, Kyoung Joung
1Department of Rehabilitation Medicine, National Rehabilitation Hospital. c-med@hanmail.net
2Department of Medical Engineering, College of Health Science, Yonsei University.
편마비 환자의 보행 능력 측정에서 체중심 가속도계의 유용성
최유남, 박시운, 장순자, 이재영1, 김영호1, 이경중1
국립재활병원 재활의학과, 1연세대학교 보건과학대학 의공학과
Accelerometer is a convenient device that can easily measure human movement. The purpose of this study was to evaluate its usefulness in the assessment of hemiparetic gait after stroke.
Twenty hemiparetic stroke patients were enrolled in the study. A portable accelerometer was attached between L3,4 intervertebral area. Vertical and medio-lateral acceleration was measured while walking 10 m. Walking ability of each subject was classified by Functional Walking Category (FWC).
Accelerometric parameters, such as walking speed, a mean amount of peak vertical acceleration in one gaitcycle, mean peak value of unaffected side, peak vertical acceleration ratio, step time ratio were significantly higher in groups of FWC 4, 5, 6 than in groups of FWC 2, 3. In subjects using cane there was an extra peak other than peaks observed in non-users. Mean peak value, step length of unaffected side and cadence were significantly higher in non-users than in users.
Trunk accelerometer can be used as an objective method to evaluate walking ability in hemiparetic patients after stroke. (J Korean Acad Rehab Med 2006; 30: 62-68)
Key Words: Stroke, Accelerometer, Gait analysis


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