Obese and fit adolescents have lower blood pressure levels than obese and unfit counterparts.
Details
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State: Public
Version: author
Serval ID
serval:BIB_884589EDB736
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Obese and fit adolescents have lower blood pressure levels than obese and unfit counterparts.
Journal
The Journal of sports medicine and physical fitness
ISSN
0022-4707 (Print)
ISSN-L
0022-4707
Publication state
Published
Issued date
12/2012
Peer-reviewed
Oui
Volume
52
Number
6
Pages
639-646
Language
english
Notes
Publication types: Comparative Study ; Journal Article
Publication Status: ppublish
Publication Status: ppublish
Abstract
The aim of the study was to assess the effects of physical fitness on the relationships between body mass index (BMI) and body fat (BF) on blood pressure (BP) levels.
Cross-sectional study conducted in 25 schools of Lisbon (Portugal), including 2041 boys and 1995 girls aged 10-18. BF was assessed by bioimpedance. Cardiovascular fitness was assessed by the 20-meter shuttle run and classified as fit/unfit. Obesity (BMI or BF defined) was defined according to international criteria.
In both sexes, BMI was positively related with systolic and diastolic BP, while BF was only positively related with diastolic BP z-scores. No interaction was found between fitness and BMI categories regarding BP levels, while for BF a significant interaction was found. Being fit reduced the BF-induced increase in the Odds ratio (OR) of presenting with high BP: OR (95% confidence interval) 1.01 (0.73-1.40) and 0.99 (0.70-1.38) for overweight and obese fit boys, respectively, the corresponding values for unfit overweight and obese boys being 1.33 (0.94-1.90) and 1.75 (1.34-2.28), respectively. The values were 0.88 (0.57-1.35) and 1.66 (0.98-2.80) for overweight and obese fit girls, respectively, the corresponding values for unfit overweight and obese being 1.63 (1.12-2.37) and 1.90 (1.32-2.73) respectively. No interaction was found between fitness and BMI-defined overweight and obesity.
Being fit reduces the negative impact of BF on BP levels and high BP status in adolescents. This protective effect was not found with BMI.
Cross-sectional study conducted in 25 schools of Lisbon (Portugal), including 2041 boys and 1995 girls aged 10-18. BF was assessed by bioimpedance. Cardiovascular fitness was assessed by the 20-meter shuttle run and classified as fit/unfit. Obesity (BMI or BF defined) was defined according to international criteria.
In both sexes, BMI was positively related with systolic and diastolic BP, while BF was only positively related with diastolic BP z-scores. No interaction was found between fitness and BMI categories regarding BP levels, while for BF a significant interaction was found. Being fit reduced the BF-induced increase in the Odds ratio (OR) of presenting with high BP: OR (95% confidence interval) 1.01 (0.73-1.40) and 0.99 (0.70-1.38) for overweight and obese fit boys, respectively, the corresponding values for unfit overweight and obese boys being 1.33 (0.94-1.90) and 1.75 (1.34-2.28), respectively. The values were 0.88 (0.57-1.35) and 1.66 (0.98-2.80) for overweight and obese fit girls, respectively, the corresponding values for unfit overweight and obese being 1.63 (1.12-2.37) and 1.90 (1.32-2.73) respectively. No interaction was found between fitness and BMI-defined overweight and obesity.
Being fit reduces the negative impact of BF on BP levels and high BP status in adolescents. This protective effect was not found with BMI.
Keywords
Adolescent, Blood Pressure/physiology, Blood Pressure Determination, Body Mass Index, Female, Humans, Incidence, Male, Obesity/epidemiology, Obesity/physiopathology, Obesity/prevention & control, Odds Ratio, Physical Fitness/physiology, Retrospective Studies, Risk Factors, Sex Factors, Switzerland/epidemiology
Pubmed
Web of science
Create date
22/01/2013 18:00
Last modification date
20/08/2019 15:47
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