Seasonal variability in weight change during elementary school

Autor: Janice Baranowski, Tzu-An Chen, Sheryl O. Hughes, Tom Baranowski, Craig A. Johnston, Deborah Woehler, Jennette P. Moreno, Teresia O’Connor
Rok vydání: 2014
Předmět:
Zdroj: Obesity. 23:422-428
ISSN: 1930-7381
DOI: 10.1002/oby.20977
Popis: Objective To examine seasonal variation in weight gain across elementary school (kindergarten-5th grade) among children who are healthy weight, overweight, or obese and from different racial and ethnic groups. Methods The sample included 7,599 ethnically diverse students ages 5-7 years at baseline (Caucasian: 21.1%, Black: 36.2%, Hispanic: 26.0%, Asian 16.7%). Heights and weights were measured by school nurses at the beginning and end of each school year from kindergarten through the beginning of 5th grade. Results Beginning the summer after 1st grade, all children demonstrated a pattern of standardized BMI (zBMI) increases during the summer (0.04 to 0.09) and zBMI decreases across the school years (−0.06 to 0.00; P
Databáze: OpenAIRE