Effects of active breaks on educational achievement in children with and without ADHD: study protocol and rationale of the Break4Brain project.

The Break4Brain project aims to elucidate the effects of both acute and chronic physical activity (PA) on educational achievement in children with and without Attention Deficit Hyperactivity Disorder (ADHD). This study will be conducted in two phases: a cross-over design followed by a hybrid type 1 implementation-effectiveness trial, which includes both a cluster randomized controlled trial (RCT) and a qualitative study. In phase I, 60 children aged 10-12, with 30 each from ADHD and non-ADHD groups, will participate in a laboratory-based study over 4 days within 1 month.

Associations of Heart Rate Measures during Physical Education with Academic Performance and Executive Function in Children: A Cross-Sectional Study.

The current evidence for a relation between children's heart rate measures and their academic performance and executive functioning is infancy. Despite several studies observing dose-response effects of physical activity on academic performance and executive function in children, further research using objective measures of the relative intensity of physical activity (e.g.

[Effects of moderate to vigorous intensity interval exercise program on fitness and fatness in 11-and 12-years-old schoolchildren].

Introduction: there is growing evidence of concern for values in terms of physical condition and body composition alarming that place school child at risk parameters in physical health. Numerous investigations relate physical activity with improvement in physical condition and body composition. Objective: to analyze the effects of a sub-maximal intensity interval exercise program on physical condition (upper body isometric strength in both hands, lower body explosive strength, velocity-agility and cardiorespiratory fitness) and body composition (body mass index, % of body fat, waist circumference and waist/height index), all of them related to health, in schoolchildren of 11 and 12 years.

[The influence of parents on habits and substance use in adolescents of Palma de Mallorca, Spain, in 2003].

Background: Substance use is quite common among adolescents. The objective of this study was to determine the influence of parents on their habits.

Methods: The study sample was made up of all 13 to 15 year old schoolchildren from the island of Majorca and their parents.