동적 근전도를 통한 퇴행성 슬관절염 환자의 보행 분석
Dynamic Electromyographic Activities of Lower Extremity Muscles in Patients with Osteoarthritis of the Knees
임길병, 이홍재, 주성주, 채지원,
소속 상세정보
임길병 ( Lim Kil-Byung )
인제대학교 의과대학 일산백병원 재활의학교실
이홍재 ( Lee Hong-Jae )
인제대학교 의과대학 일산백병원 재활의학교실
주성주 ( Joo Sung-Joo )
인제대학교 의과대학 재활의학교실
채지원 ( Chai Ji-Won )
인제대학교 스포츠재활연구소
KMID : 0860920040060010045
Abstract
Objective: To investigate the characteristics of electromyographic actividuals with knee osteoarthritis using dynamic eletromyography (dEMG)
Method: dEMG activites of eight muscle of lower extremities in 15 patients and 16 healthy controls were measured during walking. dEMG activities were divided according ro four phases of a gait cycle (phade 1, heel strike - foot flat; phase 2, foot flat - toe off; phase 3, toe off midswinig; phase 4, midswinig - terminal swing). Duration of each phase to duration of one gait cycle (%) and normalized integrated electromyography (NIEMG)of each muscle (%) were compared between patients and controls.
Results: Patients showed longer duration of phase 2 and shorter duration of phase 3 than controls (p<0.05). The NIEMGs of vastus medialis and those of peroneus longus during phase 1 were smaller and larger, respectively. in patients than in controls (p<0.05). The NIEMGs of tibialis anterior during phase 3 and thos of medial gastrocnemius during phase 4 were larger and smaller, respectively, in patients than in controls (p<0.05).
Conclusion:Duration of gait cycle and dEMG activities of the lower extremities of the individuals with knee osteoarthritis were different from those of healthy sybjects.
키워드
Knee osteoarthritis; Dynamic EMG;Gait
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