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Browsing by Author "Santos, Amanda"

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  • Association between sedentary behavior time and waist-to-height ratio in preschool children
    Publication . Mota, Jorge; Silva Dos Santos, Sandra; Santos, Amanda; Seabra, André; Vale, Susana
    To explore the association between sedentary behavior time (SB), and waist-to-height ratio (WHtR) in preschool children. This study included 646 preschool children (4- to 6-years old). WHtR was calculated as the ratio of waist/ height with a cutoff of 0.5 used to define risk of abdominal obesity. Sedentary behavior was measured during 7 consecutive days by accelerometer. Logistic regression was used to determine the association between SB and WHtR. The prevalence of central obesity (WHtR) was 52.4 and 39.2% for girls and boys, respectively. Boys classified as being at risk for central obesity were more likely to spend more time in SB (OR: 1.6; CI: 1.1–2.5; P< 0.05), adjusted by age (P< 􏰁 0.00 1).Our data suggested that boys classified as having higher SB were more likely to having more central obesity.
    2016-03Journal article Restricted access Show more
  • Motor fitness and preschooler children obesity status
    Publication . Silva-Santos, Sandra; Santos, Amanda; Vale, Susana; Mota, Jorge
    The aim of this study was to examine the association between motor fitness (MF) and obesity status in preschool children. The sample comprised 467 children aged 3–6 years. Preschool children body mass index was classified according to International Obesity Task Force and categorised into three levels, normal, overweight and obesity. Total physical activity was assessed by accelerometer and MF test was assessed through two MF tests 10 × 5m shuttle run test (SRT) and a 7 m jumping distance on 2 feet test (J2F). Low MF was considered for MF if SD above 1. A single variable with three categories was created: low MF medium MF and high MF. The prevalence of normal weight, overweight and obesity was 67.6%, 22.7% and 9.7%, respectively. The prevalence of SD > 1 for SRT was 13.7% and 14.4% for J2F, for single variable was 19.2%. Multinomial logistic regression analysis showed that obese preschoolers were more likely six times classified as having low MF level than their non-overweight counterparts (OR: 6.4; IC: 1.3–36.6). This study showed a considerable prevalence of overweight and obesity among preschoolers. Obesity has already been associated with lower MF. Further longitudinal studies are needed to con firm this data.
    2016Journal article Open access Show more