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자료유형
학술저널
저자정보
저널정보
한국발육발달학회 한국발육발달학회지 한국발육발달학회지 제16권 제1호
발행연도
2008.3
수록면
49 - 56 (8page)

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The purpose of this study was to investigate the relationship between daily living functional fitness and muscle mass in the lower limbs and waist in mid-elderly women. The subject of the study consisted of 57 persons (females) aged 50-79 years older. The subcutaneous fat and muscle psoas major cross-sectional area measurements were determined with an MRI machine. As for the femoral cross-sectional area, quadriceps femoris muscles were classified under thigh muscle extensors and hamstring muscles as well as adductor muscles under thigh muscle flexsors. The lower limb muscles involved muscle tibialis anterior and muscles triceps surae both of which had their cross-sectional area calculated. Also, the functional fitness tests included sit-ups, chair stand up, sitting trunk flexion, close-eyes foot-balance, 10m obstacle walk and 6-minute walk. The results of the present study were as follows: the ability of daily living functional fitness showed a statistically significant decrease in value from the 70`s age group when compared with the 50-59 age bracket (sit-ups, chair stand up, close-eyes foot-balance, 10 m obstacle walk and 6-minute walk: p<.01), but the sitting trunk flexion of daily living functional fitness showed no significant change for aging. Also the muscle cross-sectional area showed significantly decrease from the 70`s age group when compared with the 50-59 age bracket (muscle psoas major, thigh muscle extensors, tibialis anterior, triceps surae: p<0.01). The significant co-relationship was found between the sit-ups (r=.665)/chair stand up (r=.557)/sitting trunk flexion (r=.542)/close-eyes foot-balance (r=.418)/6-minute walk (r=.669) and psoas major in the 60-69 age bracket, also between muscle psoas major (r=.694)/thigh muscle extensor (r=.485) and 6- minute walk in the 70-79 age bracket. These results indicate that the muscle atrophy with aging in tibialis anterior, triceps surae, muscle psoas major and thigh muscle extensor is a factor responsible for the decreases in daily living functional fitness(et`s. walking ability). Furthermore, it was suggested possibility that the decline of daily living functional fitness is due to decreased muscle mass of the lower limbs and waist with aging.

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