Temporal Relationship Between Insulin Sensitivity and the Pubertal Decline in Physical Activity in Peripubertal Hispanic and African American Females

doi:10.2337/dc13-0083

CNU IR > College of Smart Living > Dept. of Hospital and Health (including master's program) > Periodical Articles > Item 310902800/27939

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题名:	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.
贡献者:	醫務管理系
关键词:	Age-Related Decline Metabolic Syndrome United-States Energy Homeostasis Youth Resistance Children Glucose Accelerometer Responsivity
日期:	2013-11
上传时间:	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.
關聯:	Diabetes Care, v.36 n.11 pp.3739-3745
显示于类别:	[Dept. of Hospital and Health (including master's program)] Periodical Articles

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