Publications by authors named "Julian Zaragoza"

Objective: The aim of the current study was to compare pressures exerted on the lower limb by a high compression bandage as recorded by sub-bandage sensors and those estimated by Laplace's law. The correlation between pressures obtained in each anatomical zone and the corresponding limb perimeters were explored.

Method: For the measurement of sub-bandage pressures, four anatomical zones in the lower right limb were determined.

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Background: School environment provides several intervention opportunities for physical activity. The aim of this study was to examine the relationship between objectively assessed moderate to vigorous physical activity (MVPA) and academic achievement in adolescents.

Methods: Cross-sectional data were collected from 301 students aged between 13 and 15 years (46.

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Unlabelled: This study aimed to investigate the effects of a physical activity intervention, based on self-determination theory and the transtheoretical model, on university students in the contemplation stage.

Participants: 42 students, in the contemplation stage at baseline, were randomly assigned to an experimental group (16 women, 2 men; M age = 19.1 ± 1.

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Aim: This study investigated the stages of change in physical activity in relation to psychological variables: self-efficacy, physical self-concept and barriers to physical activity, as well as gender. Furthermore, cluster profiles were created based on psychological variables to be compared with stages of change groups.

Methods: Data were obtained from a representative sample of adolescents (N.

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Aim: This study examined the effect of different epoch lengths (from 3 to 60 s) on (a) moderate to vigorous physical activity (MVPA), (b) 10 minutes bouts of MVPA and (c) compliance with World Health Organization (WHO) guidelines, as measured with an ActiGraph accelerometer.

Methods: A sample of 401 adolescents (14.48±0.

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Aim: This study aimed to assess the day-to-day variability of children's physical activity by accelerometer on week-days and week-end days, and to determine the proportion of children that comply with the established physical activity (PA) guidelines.

Methods: Physical activity was recorded every minute by uniaxial accelerometer in 104 normal-weight adolescent students (64 boys and 40 girls) for up to two different weeks (in winter and spring) and over seven consecutive days each week. We examined the difference in minutes for each gender and for the intensity of physical activity over the days of the week.

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Aim: Perceived barriers were the single most powerful predictors of a change in health behaviours and the most consistent negative correlate of children's actual physical activity (PA). The purpose of this study was to compare the perceived barriers of physical activity in 714 adolescent girls defined by physical activity levels.

Methods: The final sample consisted of 714 adolescent, student girls.

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