Accelerometer-determined peak cadence and weight status in children from São Caetano do Sul, Brazil

Artigo publicado em Ciência & Saúde Coletiva, 2016 . Escrito por Gerson Luis de Moraes Ferrari , Timóteo AraújoLuis Carlos Oliveira Victor Keihan Rodrigues Matsudo, Emily Mire Tiago Barreira, Catrine Tudor Locke, Peter T. Katzmarzyk

The purpose of this study was to determine the relationship between peak cadence indicators and body mass index (BMI) and body fat percentage (BF%)-defined weight status in children. The sample comprised 485 Brazilian children. Minute-by-minute step data from accelerometry were rank ordered for each day to identify the peak 1-minute, 30-minute and 60-minute cadence values. Data were described by BMI–defined and bioelectrical impedance-determined BF% weight status. BMI-defined normal weight children had higher peak 1-minute (115.5 versus 110.6 and 106.6 steps/min), 30-minute (81.0 versus 77.5 and 74.0 steps/min) and 60-minute cadence (67.1 ver-sus 63.4 and 60.7 steps/min) than overweight and obese children (p<.0001), respectively. Defined using %BF, normal weight children had higher peak 1-minute (114.5 versus 106.1 steps/min), 30-minute (80.4 versus 73.1 steps/min) and 60-minute cadence (66.5 versus 59.9 steps/min) than obese children (p<.0001). Similar relationships were observed in boys; however, only peak 1- minute cadence differed significantly across BMI and %BF-defined weight status categories in girls. Peak
cadence indicators were negatively associated with BMI and BF% in these schoolchildren and signifi- cantly higher among normal weight compared to overweight or obese children.

Key words Physical activity, Adiposity, Obesity, Body composition


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