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논문 기본 정보

자료유형
학술저널
저자정보
저널정보
한국전문물리치료학회 한국전문물리치료학회지 한국전문물리치료학회지 제6권 제3호
발행연도
1999.1
수록면
11 - 21 (11page)

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초록· 키워드

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Human balance is maintained through a complex process involving sensory detectionof body motions, integration of sensorimotor information within the central nervoussystem, and execution of appropriate musculoskeletal responses. The basic task ofbalance is to position the body center of gravity (COG) over some portion of thesupport base. When the COG extends beyond the base of support, the person hasexceeded the limits of stability (LOS). At this point, a step or stumble is required toprevent a fall. Automatic postural responses operate to keep the COG over the base ofsupport. They are a set of functionally organized, long-loop responses that act to keepthe body in a state of equilibrium. There are four commonly identified automaticpostural responses, or strategies. These are ankle strategy, hip strategy, suspensory(knee) strategy, and stepping strategy. Thus, the purpose of this study was to evaluatethe LOS using various knee strategies. Forty subjects participated in this study. Thesubjects were comprised of 20 males and 20 females who were without neurologic,orthopaedic or balance performance impairments. The LOS was measured with aBalance Performance Monitor (BPM) Dataprint Software Version 5.3. The results of thisstudy were as follows: 1) Knee joint angle which is to increase stability of standingbalance with using knee strategy was at mid-range. 2) There were statisticallysignificant differences in anteroposterior LOSs according to the knee strategy. 3) Therewere no statistically significant differences in mediolateral LOSs according to the kneestrategy. 4) There were statistically significant differences of anteroposterior LOSs withusing knee strategy according to gender. 5) There were no statistically significantdifferences in mediolateral LOSs with using knee strategy according to gender.

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