Oda Klavestad Moen, Pétur Benedikt Júlíusson, Mathieu Roelants, Ulrike Spielau
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Overall differences were tested with a one-way between-group analysis of variance.</p>\n </section>\n \n <section>\n \n <h3> Results</h3>\n \n <p>The girls had higher BMIz (+0.12, <i>p</i> = .03) and WCz (+0.18, <i>p</i> = .002) in fall compared with spring. TSFz (−0.19, <i>p</i> < .001) and SSFz (−0.18, <i>p</i> < .001) were lower in winter in girls, and in boys both in fall (TSFz −0.10, <i>p</i> = .046; SSFz – 0.16, <i>p</i> < .001), and winter (TSFz −0.15, <i>p</i> = .004; SSFz −0.14, <i>p</i> = .003), when compared with spring.</p>\n </section>\n \n <section>\n \n <h3> Conclusions</h3>\n \n <p>Seasonal variation was detected for all anthropometric measures, but differences in the direction of the effect between measures of global (BMI), central (WC) or subcutaneous (SF) adiposity suggest a more complex mechanism that needs further exploration.</p>\n </section>\n </div>","PeriodicalId":50809,"journal":{"name":"American Journal of Human Biology","volume":"36 9","pages":""},"PeriodicalIF":1.6000,"publicationDate":"2024-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ajhb.24084","citationCount":"0","resultStr":"{\"title\":\"Seasonal variability in body mass index, waist circumference, and skinfolds in Norwegian children\",\"authors\":\"Oda Klavestad Moen, Pétur Benedikt Júlíusson, Mathieu Roelants, Ulrike Spielau\",\"doi\":\"10.1002/ajhb.24084\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div>\\n \\n \\n <section>\\n \\n <h3> Objectives</h3>\\n \\n <p>Studies have shown that children develop a higher body weight during summer months. This has been demonstrated repeatedly using the body mass index (BMI), but the effect of season on other weight-related anthropometric measurements is still unclear.</p>\\n </section>\\n \\n <section>\\n \\n <h3> Methods</h3>\\n \\n <p>Measurements of height, weight, waist circumference (WC), triceps, and subscapular skinfolds (TSF and SSF), collected from September till May in a cross-sectional sample of 4–16-year-old children and adolescents (<i>n</i> = 4525) from the Bergen Growth Study 1 (BGS1). Differences in <i>z</i>-score by season were tested with linear models adjusted for age group and separately for sex. Overall differences were tested with a one-way between-group analysis of variance.</p>\\n </section>\\n \\n <section>\\n \\n <h3> Results</h3>\\n \\n <p>The girls had higher BMIz (+0.12, <i>p</i> = .03) and WCz (+0.18, <i>p</i> = .002) in fall compared with spring. TSFz (−0.19, <i>p</i> < .001) and SSFz (−0.18, <i>p</i> < .001) were lower in winter in girls, and in boys both in fall (TSFz −0.10, <i>p</i> = .046; SSFz – 0.16, <i>p</i> < .001), and winter (TSFz −0.15, <i>p</i> = .004; SSFz −0.14, <i>p</i> = .003), when compared with spring.</p>\\n </section>\\n \\n <section>\\n \\n <h3> Conclusions</h3>\\n \\n <p>Seasonal variation was detected for all anthropometric measures, but differences in the direction of the effect between measures of global (BMI), central (WC) or subcutaneous (SF) adiposity suggest a more complex mechanism that needs further exploration.</p>\\n </section>\\n </div>\",\"PeriodicalId\":50809,\"journal\":{\"name\":\"American Journal of Human Biology\",\"volume\":\"36 9\",\"pages\":\"\"},\"PeriodicalIF\":1.6000,\"publicationDate\":\"2024-04-12\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ajhb.24084\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"American Journal of Human Biology\",\"FirstCategoryId\":\"3\",\"ListUrlMain\":\"https://onlinelibrary.wiley.com/doi/10.1002/ajhb.24084\",\"RegionNum\":4,\"RegionCategory\":\"医学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"ANTHROPOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"American Journal of Human Biology","FirstCategoryId":"3","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/ajhb.24084","RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ANTHROPOLOGY","Score":null,"Total":0}
Seasonal variability in body mass index, waist circumference, and skinfolds in Norwegian children
Objectives
Studies have shown that children develop a higher body weight during summer months. This has been demonstrated repeatedly using the body mass index (BMI), but the effect of season on other weight-related anthropometric measurements is still unclear.
Methods
Measurements of height, weight, waist circumference (WC), triceps, and subscapular skinfolds (TSF and SSF), collected from September till May in a cross-sectional sample of 4–16-year-old children and adolescents (n = 4525) from the Bergen Growth Study 1 (BGS1). Differences in z-score by season were tested with linear models adjusted for age group and separately for sex. Overall differences were tested with a one-way between-group analysis of variance.
Results
The girls had higher BMIz (+0.12, p = .03) and WCz (+0.18, p = .002) in fall compared with spring. TSFz (−0.19, p < .001) and SSFz (−0.18, p < .001) were lower in winter in girls, and in boys both in fall (TSFz −0.10, p = .046; SSFz – 0.16, p < .001), and winter (TSFz −0.15, p = .004; SSFz −0.14, p = .003), when compared with spring.
Conclusions
Seasonal variation was detected for all anthropometric measures, but differences in the direction of the effect between measures of global (BMI), central (WC) or subcutaneous (SF) adiposity suggest a more complex mechanism that needs further exploration.
期刊介绍：
The American Journal of Human Biology is the Official Journal of the Human Biology Association.
The American Journal of Human Biology is a bimonthly, peer-reviewed, internationally circulated journal that publishes reports of original research, theoretical articles and timely reviews, and brief communications in the interdisciplinary field of human biology. As the official journal of the Human Biology Association, the Journal also publishes abstracts of research presented at its annual scientific meeting and book reviews relevant to the field.
The Journal seeks scholarly manuscripts that address all aspects of human biology, health, and disease, particularly those that stress comparative, developmental, ecological, or evolutionary perspectives. The transdisciplinary areas covered in the Journal include, but are not limited to, epidemiology, genetic variation, population biology and demography, physiology, anatomy, nutrition, growth and aging, physical performance, physical activity and fitness, ecology, and evolution, along with their interactions. The Journal publishes basic, applied, and methodologically oriented research from all areas, including measurement, analytical techniques and strategies, and computer applications in human biology.
Like many other biologically oriented disciplines, the field of human biology has undergone considerable growth and diversification in recent years, and the expansion of the aims and scope of the Journal is a reflection of this growth and membership diversification.
The Journal is committed to prompt review, and priority publication is given to manuscripts with novel or timely findings, and to manuscripts of unusual interest.
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