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Direct linkWang, Chao; Chen, Peijie; Zhuang, Jie – Research Quarterly for Exercise and Sport, 2013
Purpose: The purpose of this study was to objectively assess levels of physical activity (PA) and sedentary behavior (SB) of Chinese city children and youth aged 9 to 17 years old using accelerometers and to examine their differences by gender, age, grade, and weight status. Method: The PA and SB of 2,163 students in 4th grade through 11th grade…
Descriptors: Foreign Countries, Physical Activities, Physical Activity Level, Measurement Equipment
Garn, Stanley M.; Petzold, Audrey S. – American Journal of Diseases of Children, 1983
Data from nearly 30,000 pregnant and third decade (20-29 years) mothers show that small infant size among teenage mothers is consistent with the mother's size and not directly related to early age at conception. Third decade mothers of comparable size give birth to infants with essentially the same characteristics and problems. (Author/GC)
Descriptors: Adolescents, Adults, Age Differences, Body Height
