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Relations of total physical activity and intensity to fitness and fatness in children : the European Youth Heart Study
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- Ruiz, Jonatan R. (author)
- Karolinska Institutet
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- Rizzo, Nico S. (author)
- Karolinska Institutet
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- Hurtig-Wennlöf, Anita (author)
- Örebro universitet,Institutionen för klinisk medicin
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- (creator_code:org_t)
- Elsevier BV, 2006
- 2006
- English.
- In: American Journal of Clinical Nutrition. - : Elsevier BV. - 0002-9165 .- 1938-3207. ; 84:2, s. 299-303
- Journal article (peer-reviewed)
Abstract
Subject headings
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- Background: It is unclear how the amount and intensity of physical activity (PA) are associated with cardiovascular fitness (CVF) and body fatness in children.Objective: We aimed to examine the associations of total PA and intensity levels to CVF and fatness in children.Design: A cross-sectional study of 780 children aged 9–10 y from Sweden and Estonia was conducted. PA was measured by accelerometry and was expressed as min/d of total PA, moderate PA, and vigorous PA. CVF was measured with a maximal ergometer bike test and was expressed as W/kg. Body fat was derived from the sum of 5 skinfold-thickness measurements. Multiple regression analysis was used to determine the degree to which variance in CVF and body fat was explained by PA, after control for age, sex, and study location.Results: Lower body fat was significantly associated with higher levels of vigorous PA, but not with moderate or total PA. Those children who engaged in >40 min vigorous PA/d had lower body fat than did those who engaged in 10–18 min vigorous PA/d. Total PA, moderate PA, and vigorous PA were positively associated with CVF. Those children who engaged in >40 min vigorous PA/d had higher CVF than did those who accumulated <18 min vigorous PA/d.Conclusions: The results suggest that PA of vigorous intensity may have a greater effect on preventing obesity in children than does PA of lower intensity, whereas both total and at least moderate to vigorous PA may improve children's CVF.
Subject headings
- MEDICIN OCH HÄLSOVETENSKAP -- Medicinska och farmaceutiska grundvetenskaper -- Fysiologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Basic Medicine -- Physiology (hsv//eng)
- MEDICIN OCH HÄLSOVETENSKAP -- Hälsovetenskap -- Näringslära (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Health Sciences -- Nutrition and Dietetics (hsv//eng)
Keyword
- Adipose Tissue/metabolism
- Body Composition/physiology
- Child
- Cross-Cultural Comparison
- Cross-Sectional Studies
- Estonia/epidemiology
- Exercise/*physiology
- Female
- Humans
- Male
- Multivariate Analysis
- Obesity/*epidemiology/*metabolism
- Physical Fitness/*physiology
- Regression Analysis
- Sex Factors
- Skinfold Thickness
- Sweden/epidemiology
- Time Factors
- Physiology
- Fysiologi
- Nutrition
- Näringslära
- MEDICINE
- MEDICIN
- Nutrition
- Näringslära
Publication and Content Type
- ref (subject category)
- art (subject category)
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