Use of physical activity and cardiorespiratory fitness in identifying cardiovascular risk factors in male brazilian adolescents

Abstract

-The aim of this study was to investigate the impact of physical activity (PA) and cardiorespiratory fitness (CRF) levels on the prevalence of overweight and high blood pressure levels in adolescents. In this observational, cross-sectional study, 614 boys aged 10-14 years were assessed for height, body mass, body mass index (BMI), waist circumference (WC) and blood pressure (BP). CRF was assessed using a run test (Léger Test) and subjects were then grouped according to their CRF level. PA level was assessed through a questionnaire (The Three Day Physical Activity Recall) and classified into two groups, namely > 300 minutes of PA/week and < 300 minutes of PA/week. Maturational stage was evaluated according to the development of pubic hair (self-assessment) as proposed by Tanner. We used statistical descriptive analysis, univariate and multivariate analyses in the total participants and subjects were divided by age. Fifty percent of the sample performed < 300 minutes of PA/week and 67.6% had unsatisfactory CRF levels. There was a higher prevalence of unsatisfactory CRF levels among subjects with altered BMI (overweight), WC (abdominal obesity) or BP (high blood pressure) for all age groups. PA history, however, did not show any significance. A total of 31% of participants were overweight, 24.8% had abdominal obesity and 15.4% had increased BP. Unsatisfactory CRF levels were found to be a better predictor for the diagnosis of cardiovascular diseases (CV) risk factors than PA history, regardless of age group.Key words: Cardiovascular diseases; Health status indicators; Motor activity; Oxygen consumption; Students. Resumo -Objetivou-se investigar o impacto da atividade física (AF) e níveis da aptidão cardiorrespiratória (APCR) na

Excess adiposity and low physical fitness hamper Supine-to-Stand test performance among sedentary adolescents

“…Increases in sedentariness result in a decline in physical performance 5 and levels of physical fitness 6 and may lead to changes in the motor competence (MC) in all periods of life, especially in adolescents, 7 which in turn, can be more involved in sedentary activities for lack of motor skills. Physical fitness impacts physical and functional performance and is an important health status component of adolescents.…”