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Relationship of single measures of cardiorespiratory fitness and obesity in young schoolchildren.
Am J Hum Biol. 2006 May-Jun; 18(3):335-41.AJ

Abstract

The purpose of this study was to examine differences of cardiorespiratory fitness (CRF) among weight groups, and the associations of CRF with obesity (body mass index) in a sample of young children. Anthropometric data (height, body mass, and two skinfolds) were collected for 255 healthy children aged 8-10 years (127 boys and 128 girls). Children were placed in three groups (nonobese, overweight, and obese), using body mass index (BMI) sex- and age-specific cutoff points. Cardiorespiratory fitness was assessed with a 1-mile run test. Participants were separated into two groups: fit and unfit, according to age- and sex-specific scores defined by FITNESSGRAM. The prevalence of overweight (30.5% vs. 29.1%) and obesity (13.2% vs. 12.6%) was at the same magnitude for boys and girls. Overall, 109 children (42.7%) were overweight and obese. Sums of skinfolds, weight, and BMI were significantly lower (P < 0.05) in lean boys and girls compared to their overweight and obese counterparts. Regarding height, no significant differences were found in girls, while in boys, significant differences were only found between nonobese and obese. No differences were found in obesity groups according to CRF in boys, while significant differences were found for girls (P < 0.01). Logistic regression analysis showed that girls who were overweight (odds ratio = 0.05, P = 0.000) or obese (odds ratio = 0.09, P = 0.001) were likely to be unfit. No significant results were found in boys. Overweight and obese children presented higher sums of skinfolds and weight compared with their lean counterparts. Increased BMI was significantly associated with lower CRF in girls. Thus, our data clearly showed potential gender differences of body composition in CRF, which would be of great clinical significance. Therefore, even at young ages, at least for girls, the beneficial impact of low BMI values on CRF is shown with important clinical and public health implications.

Authors+Show Affiliations

Research Center in Physical Activity Health and Leisure, Faculty of Sport Sciences and Physical Education, University of Porto, 4200 450 Porto, Portugal. jmota@fcdef.up.ptNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Comparative Study
Journal Article
Multicenter Study
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

16634016

Citation

Mota, Jorge, et al. "Relationship of Single Measures of Cardiorespiratory Fitness and Obesity in Young Schoolchildren." American Journal of Human Biology : the Official Journal of the Human Biology Council, vol. 18, no. 3, 2006, pp. 335-41.
Mota J, Flores L, Flores L, et al. Relationship of single measures of cardiorespiratory fitness and obesity in young schoolchildren. Am J Hum Biol. 2006;18(3):335-41.
Mota, J., Flores, L., Flores, L., Ribeiro, J. C., & Santos, M. P. (2006). Relationship of single measures of cardiorespiratory fitness and obesity in young schoolchildren. American Journal of Human Biology : the Official Journal of the Human Biology Council, 18(3), 335-41.
Mota J, et al. Relationship of Single Measures of Cardiorespiratory Fitness and Obesity in Young Schoolchildren. Am J Hum Biol. 2006 May-Jun;18(3):335-41. PubMed PMID: 16634016.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Relationship of single measures of cardiorespiratory fitness and obesity in young schoolchildren. AU - Mota,Jorge, AU - Flores,Luana, AU - Flores,Luís, AU - Ribeiro,José C, AU - Santos,Maria P, PY - 2006/4/25/pubmed PY - 2006/5/31/medline PY - 2006/4/25/entrez SP - 335 EP - 41 JF - American journal of human biology : the official journal of the Human Biology Council JO - Am J Hum Biol VL - 18 IS - 3 N2 - The purpose of this study was to examine differences of cardiorespiratory fitness (CRF) among weight groups, and the associations of CRF with obesity (body mass index) in a sample of young children. Anthropometric data (height, body mass, and two skinfolds) were collected for 255 healthy children aged 8-10 years (127 boys and 128 girls). Children were placed in three groups (nonobese, overweight, and obese), using body mass index (BMI) sex- and age-specific cutoff points. Cardiorespiratory fitness was assessed with a 1-mile run test. Participants were separated into two groups: fit and unfit, according to age- and sex-specific scores defined by FITNESSGRAM. The prevalence of overweight (30.5% vs. 29.1%) and obesity (13.2% vs. 12.6%) was at the same magnitude for boys and girls. Overall, 109 children (42.7%) were overweight and obese. Sums of skinfolds, weight, and BMI were significantly lower (P < 0.05) in lean boys and girls compared to their overweight and obese counterparts. Regarding height, no significant differences were found in girls, while in boys, significant differences were only found between nonobese and obese. No differences were found in obesity groups according to CRF in boys, while significant differences were found for girls (P < 0.01). Logistic regression analysis showed that girls who were overweight (odds ratio = 0.05, P = 0.000) or obese (odds ratio = 0.09, P = 0.001) were likely to be unfit. No significant results were found in boys. Overweight and obese children presented higher sums of skinfolds and weight compared with their lean counterparts. Increased BMI was significantly associated with lower CRF in girls. Thus, our data clearly showed potential gender differences of body composition in CRF, which would be of great clinical significance. Therefore, even at young ages, at least for girls, the beneficial impact of low BMI values on CRF is shown with important clinical and public health implications. SN - 1042-0533 UR - https://www.unboundmedicine.com/medline/citation/16634016/Relationship_of_single_measures_of_cardiorespiratory_fitness_and_obesity_in_young_schoolchildren_ L2 - https://doi.org/10.1002/ajhb.20513 DB - PRIME DP - Unbound Medicine ER -