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KMID : 0380820060280020182
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Korean Journal of Epidemiology
2006 Volume.28 No. 2 p.182 ~ p.188
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Correlation Between Muscle Amounts and Grasp Power in the Elderly People, Jejudo
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Lee Ho-Jun
Park Min-Sung
Go Yeo-Ju
Yang Yeong-Ja
Bae Jong-Myon
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Abstract
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Objectives: This study was conducted to examine the relationships between muscle mass and hand strength in elderly people.
Methods: The study subjects were 659 volunteers aged older than 65 in Jejudo, south Korea. The anthropometric information such as weight, body mass index (BMI) and muscular mass was collected by the body composition analyzer. The hand strength was obtained by the digital grip dynamometer. The fasting blood sugar index called as potential diabetes mellitus (DM) was defined as the condition over 120 ㎎/dL of the blood sugar. The BMI was classified into under 23, 23-25 and over 25 to analyze the relationships of BMI and muscle mass, hand strength.
Results: The factors affecting muscle mass were sex (p ＜ 0.001), age (p ＜ 0.001) and BMI (p ＜ 0.001). The factors affecting hand strength were sex (p ＜ 0.001), age (p ＜ 0.001) and BMI (p = 0.003). And there was a weak association between muscle mass and hand strength after controlling with the affected factors (r2=0.15, p＜0.001).
Conclusions: The hand strength is weekly correlated with the muscle mass. So we recommend to use digital grip dynamometer combining with other measurements for diagnosis the sarcopenia in epidemiologic study.
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KEYWORD
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Skeletal muscle, Hand strength, Correlation study, Aged group
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