Marcelino, G.

Marques-Vidal Pedro, Manuel

Oliveira Joao, Miguel

Paccaud, Fred

Ravasco, Paula

Serveur académique lausannois

 Métabolisme et Cardiovasculaire/MCV-18   BODY MASS INDEX AND BODY FAT INDEPENDENTLY AND NEGATIVELY INFLUENCE FITNESS LEVELS IN PORTUGUESE YOUTH   1Marques-Vidal P., 2Marcelino G., 3Ravasco P., 4Oliveira J., 1Paccaud F.    IUMSP1, Faculdade de Medicina de Lisboa2, nidade de Nutrição e Metabolismo, Instituto de Medicina Molecular3, Universidade Lusófona de Humanidades e Tecnologias4    Objective: to assess the contributions of body mass index (BMI) and body fat % on cardiorespiratory fitness (CRF) levels  Methods: cross-sectional study including 2361 girls and 2328 boys aged 10-18 living in the Lisbon area, Portugal. CRF was assessed by the 20-meter shuttle run and body fat was assessed by a hand-held bipolar bioimpedance device. Results: the prevalence of low CRF was 47% in girls and 39% in boys; the prevalence of obesity (by BMI) was 4.8% and 5.6% (NS) and of excess fat mass of 12.1% and 25.1% (p<0.001) in girls and boys, respectively. Both BMI and body fat were negatively and independently related to low fitness in both genders; after adjusting for age, body fat explained circa 13% of total variance of the fitness test, vs. 1% for BMI. Compared to a participant with normal BMI and body fat, a participant with high BMI and high body fat had an Odds-ratio (OR) of 14.8 (95% confidence interval: 9.8 - 22.5) of being unfit. Conversely, the fitness levels of participants with a low body fat (irrespective of their BMI status), or with a low BMI (irrespective of their body fat status) were relatively similar to those of their normal BMI, normal body fat counterparts.  Conclusion: CRF levels are low among Portuguese youth. Both BMI and BF% are negatively and independently related to lower CRF, with a considerable deleterious effect when combined.        Table des matières     Message du Vice-Doyen de la  Recherche de a Faculté de Biologie et de Médecine    Programme      Abstracts  EHU  Environnement Humain  4 ENA  Environnement Naturel  27 GEN  Gènes et Environnement 31 IMI  Immunité et Infection 59 MCV  Métabolisme et Cardiovasculaire 97 NEU Neurosciences et Psyché 139 ODE  Oncologie et Développement 165 THE  Procédures Thérapeutiques 197   Index des auteurs  215    Couverture : Yannick Krempp, Département de Biologie Cellulaire et de Morphologie – UNIL   Photo : DNA microarray image of an RNA expression profiling experiment provided by  Manuela Weier and Henrik Kaessmann of the Centre Intégratif de Génomique - CIG and Jérôme Thomas of the Lausanne DNA Array Facility, Centre Intégratif de Génomique - CIG            Comité scientifique Jacques Beckmann, Service de Génétique médicale - CHUV Gé V  Poster Jury Karine Baumer, Institut de Pathologie – CHUV Di V Administration de la Recherche Jovan Mirkovitch, Faculté de Biologie et de Médecine – CHUV / UNIL Co      Comité d’organisation 2009    Nouria Hernandez, Centre intégratif de génomique - UNIL Ivan Stamenkovic, Institut de Pathologie – CHUV Amalio Telenti, Institut de Microbiologie – CHUV rard Waeber, Service de Médecine interne - CHU mitri Favre, Service de Médecine interne – CHUMarie-Aude Le Bitoux, Institut de Pathologie – CHUV Erwann Vieu, Centre intégratif de génomique – UNIL     Anne Tricot, Faculté de Biologie et de Médecine - UNIL raline Fraga, Faculté de Biologie et de Médecine - CHUV 

Body mass index and body fat independently and negatively influence fitness levels in Portuguese youth

https://serval.unil.ch/resource/serval:BIB_29C98B7E78B6.P001/REF.pdf

Body mass index and body fat independently and negatively influence fitness levels in Portuguese youth

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