Z scores for growth and development, physical fitness, and the relationship between them in 362 preschool children in Yantai City, China

SHI Zhu-Mei; ZHOU Jun-Hua; WANG Ai-Hua; WANG Ai-Li

doi:10.7499/j.issn.1008-8830.2013.02.013

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Chinese Journal of Contemporary Pediatrics ›› 2013, Vol. 15 ›› Issue (2) : 125-128. DOI: 10.7499/j.issn.1008-8830.2013.02.013

CLINICAL RESEARCH

Z scores for growth and development, physical fitness, and the relationship between them in 362 preschool children in Yantai City, China

SHI Zhu-Mei, ZHOU Jun-Hua, WANG Ai-Hua, WANG Ai-Li

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Abstract

OBJECTIVE: To investigate the Z scores for growth and development, physical fitness, and the relationship between them in preschool children in Yantai City, China, and to provide scientific evidence for health care in children. METHODS: A total of 362 children aged 3 to 4 years, whose data were recorded in the National Physical Fitness Survey in Yantai in 2010, were included in the study. Z scores for weight-for-age, height-for-age and body mass index-for-age were calculated. The relationship between Z scores and physical fitness was determined by Pearson′s correlation analysis. RESULTS: The mean Z scores were all positive numbers. The prevalence rates of underweight and growth retardation were very low, but that of obesity was relatively high (up to 16.5% in 4-year-old boys). There were differences in physical fitness between children of different ages and between boys and girls (P<0.05). The Z scores showed correlation with some physical fitness indices (P<0.05), but they were not closely correlated as the value of r was not more than 0.30. CONCLUSIONS: Z scores for growth and development remain at relatively high levels in preschool children in Yantai. The physical fitness is associated with age and gender in these children. There are weak correlations between Z scores and some physical fitness indices. Effective measures should be taken to adjust dietary habits and promote exercise for children, thus preventing obesity and improving physical fitness.

Key words

Z score / Physical fitness / Correlation / Preschool child

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SHI Zhu-Mei, ZHOU Jun-Hua, WANG Ai-Hua, WANG Ai-Li. Z scores for growth and development, physical fitness, and the relationship between them in 362 preschool children in Yantai City, China[J]. Chinese Journal of Contemporary Pediatrics. 2013, 15(2): 125-128 https://doi.org/10.7499/j.issn.1008-8830.2013.02.013

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