title: Relationship between physical activity, physical fitness and multiple metabolic risk in youths from Muzambinho's study.
abstract: Negative associations between physical activity (PA), physical fitness and multiple metabolic risk factors (MMRF) in youths from populations with low PA are reported. The persistence of this association in moderately-to highly active populations is not, however, well established. The aim of the present study was to investigate this association in a Brazilian city with high frequency of active youths. We assessed 122 subjects (9.9 ± 1.3 years) from Muzambinho city. Body mass index, waist circumference, glycaemia, cholesterolaemia, systolic and diastolic blood pressures were measured. Maximal handgrip strength and one-mile walk/run test were used. Leisure time PA was assessed by interview. Poisson regression was used in the analysis. The model explained 11% of the total variance. Only relative muscular strength and one-mile walk/run were statistically significant (p < .05). Those who needed more time to cover the one-mile walk/run test had an increased in metabolic risk of 11%, and those with greater strength reduced the risk by about 82%. In conclusion, children and youths from an active population who need less time to cover the one-mile walk/run test or who had greater muscular strength showed a reduced metabolic risk. These results suggest that even in children and youths with high leisure time PA, a greater aerobic fitness and strength might help to further reduce their MMRF.
authors.affiliation: a Exercise Hemodynamic Laboratory, School of Physical Education and Sport , University of São Paulo , São Paulo - SP , Brazil.
authors.forename: João Paulo Dos Anjos Souza
authors.initials: JP
authors.lastname: Barbosa
authors.affiliation: b Motor Control Laboratory, School of Physical Education and Sport , University of São Paulo , São Paulo - SP , Brazil.
authors.forename: Luciano
authors.initials: L
authors.lastname: Basso
authors.affiliation: c Centre of Research in Physical Activity, Health and Leisure Activity, Faculty of Sports , University of Porto , Porto , Portugal.
authors.forename: André
authors.initials: A
authors.lastname: Seabra
authors.affiliation: d Faculty of Physical Education and Sports , Pedagogical University , Maputo , Mozambique.
authors.forename: Antonio
authors.initials: A
authors.lastname: Prista
authors.affiliation: b Motor Control Laboratory, School of Physical Education and Sport , University of São Paulo , São Paulo - SP , Brazil.
authors.forename: Go
authors.initials: G
authors.lastname: Tani
authors.affiliation: e CIFI2D, Kinanthropometry Laboratory, Faculty of Sport , University of Porto , Porto , Portugal.
authors.forename: José António Ribeiro
authors.initials: JA
authors.lastname: Maia
authors.affiliation: a Exercise Hemodynamic Laboratory, School of Physical Education and Sport , University of São Paulo , São Paulo - SP , Brazil.
authors.forename: Cláudia Lúcia De Moraes
authors.initials: CL
authors.lastname: Forjaz
mesh_terms: D001938:Brazil / Q000453:epidemiology; D002648:Child; D003430:Cross-Sectional Studies; D015444:Exercise / Q000502:physiology*; D005080:Exercise Test; D005260:Female; D018737:Hand Strength / Q000502:physiology; D006801:Humans; D008297:Male; D024821:Metabolic Syndrome / Q000453:epidemiology*; D053580:Muscle Strength / Q000502:physiology; D050177:Overweight; D010809:Physical Fitness / Q000502:physiology*; D012307:Risk Factors; D055105:Waist Circumference / Q000502:physiology; D016138:Walking
keywords: Risk factors; aerobic fitness; childhood; motor activity; strength