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      • KCI등재

        고령자의 기능적 체력과 인지기능 저하와의 관련-10년간의 장기종단연구

        이성철(Sungchul Lee),니시타 유키(Yukiko Nishita),탄게 치카고(Chikako Tange),오츠카 레이(Rei Otsuka),안도 후지코(Fujiko Ando),시모카타 히로시(Hisoshi Shimokata),장명재(Myong-Jae Chang),최현민(Hyun-Min Choi) 한국생활환경학회 2016 한국생활환경학회지 Vol.23 No.5

        The purpose of this study was to examine whether functional fitness predicts subsequent cognitive decline in community dwelling older adults. The subjects were 1094 (556 men and 538 women) adults aged 60 years or older who completed the baseline (2000-2002) and ten years later (2010-2012) examinations of the National Institute for Longevity Science-Longitudinal Study of Aging (NILS-LSA) in Japan. We examined associations at baseline and over a 10-year follow-up period between seven functional fitness measures: gait speed, step length, one leg standing, reaction time, leg extension power, grip strength and knee extension strength and mini-mental state examination (MMSE). Multivariate logistic regression was used to examine the relationships between functional fitness and cognitive function decline every two years. There was a significant association between the reaction time and risk of becoming decrease to 23 points of MMSE in both model Ⅰ and model Ⅱ of all waves in men and women for 10 years. Gait speed was related to decrease in the cognitive function from after six years (5th wave) in both men (OR, 0.72; CI, 0.53-0.95) and women (OR, 0.79; CI, 0.54-0.97). Leg extension power and grip strength of the physical function were associated with cognitive function decline from after six years it was found in men only. In the women case, it was showed after 10 years. Functional fitness was identified as factors that can predict the decrease in cognitive function. But it turned out that the functional fitness related to cognitive function decreases depending on the time and gender are different.

      • KCI등재

        지역 거주 고령자를 대상으로 신체기능과 인지기능과의 관련성 연구

        이성철(Sung-Chul Lee),니시타 유키(Yukiko Nishita),탄게 치카고(Chikako Tange),오츠카 레이(Rei Otsuka),안도 후지코(Ando Fujiko),시모카타 히로시(Hisoshi Shimokata),장명재(Myoung-Jei Chang),최현민(Hyun-Min Choi) 한국생활환경학회 2015 한국생활환경학회지 Vol.22 No.5

        Cognitive decline and dementia are associated with disability and premature death in old age. We examined whether physical function predicts subsequent cognitive decline in older Japanese. There were 557 adult subjects (293 men and 264 women) aged 60 years or older who completed the baseline evaluation (2000-2002) and final evaluation 8 years later (2008-2010) of the NILS-LSA in Japan. We examined associations at the baseline and after an 8-year follow-up period between MMSE and six physical performance measures: gait speed, one leg standing with eyes closed, reaction time, leg extension power, grip strength and knee extension strength. We examined the effect of physical function on cognitive decline (at least a 3-point decline on the MMSE) by multiple logistic regression controlled for age, sex, BMI, MMSE score at baseline, smoking, self-rated health, CES-D, education, medical history and moderate to vigorous physical activity time. There was a significant association between the leg extension power (OR, 0.26; CI, 0.10-0.68) and the risk of a decrease of up to 3 points in Model 1 was adjusted for age and education. In Model II, leg extension power (OR, 0.28; CI, 0.10-0.76) was related to a decrease in the cognitive function over time and remained statistically significant after controlling for all covariates. However, the other physical functions were not statistically significant in either the limited or full adjustment models. Older Japanese with reduced leg extension power at baseline demonstrated a statistically significant decline in cognitive function over an 8-year period.

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