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    Please use this identifier to cite or link to this item: http://ir.cnu.edu.tw/handle/310902800/27939


    標題: Temporal Relationship Between Insulin Sensitivity and the Pubertal Decline in Physical Activity in Peripubertal Hispanic and African American Females
    作者: Spruijt-Metz, Donna
    Belcher, Britni R.
    Hsu, Ya-Wen
    McClain, Arianna D.
    Chou, Chih-Ping
    Nguyen-Rodriguez, Selena
    Weigensberg, Marc J.
    Goran, Michael I.
    貢獻者: 醫務管理系
    關鍵字: Age-Related Decline
    Metabolic Syndrome
    United-States
    Energy Homeostasis
    Youth
    Resistance
    Children
    Glucose
    Accelerometer
    Responsivity
    日期: 2013-11
    上傳時間: 2014-05-26 10:49:50 (UTC+8)
    出版者: Amer Diabetes Assoc
    摘要: OBJECTIVELittle attention has been paid to possible intrinsic biological mechanisms for the decline in physical activity that occurs during puberty. This longitudinal observational study examined the association between baseline insulin sensitivity (SI) and declines in physical activity and increases in sedentary behavior in peripubertal minority females over a year.RESEARCH DESIGN AND METHODSParticipants were Hispanic and African American girls (n = 55; 76% Hispanic; mean age 9.4 years; 36% obese). SI and other insulin indices were measured at baseline using the frequently sampled intravenous glucose tolerance test. Physical activity was measured on a quarterly basis by accelerometry and self-report.RESULTSPhysical activity declined by 25% and time spent in sedentary behaviors increased by approximate to 13% over 1 year. Lower baseline SI predicted the decline in physical activity measured by accelerometry, whereas higher baseline acute insulin response to glucose predicted the decline in physical activity measured by self-report. Time spent in sedentary behavior increased by similar to 13% over 1 year, and this was predicted by lower baseline SI. All models controlled for adiposity, age, pubertal stage, and ethnicity.CONCLUSIONSWhen evaluated using a longitudinal design with strong outcome measures, this study suggests that lower baseline SI predicts a greater decline in physical activity in peripubertal minority females.
    Appears in Collections:[醫務管理系(所)] 期刊論文

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