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OBJECTIVES To explore the associations between objectively assessed intensity levels of physical activity and academic achievement and test whether cardiovascular fitness mediates the association between physical activity and academic achievement. STUDY DESIGN Cross-sectional data were gathered in Swedish 9th-grade students (n = 232; mean age = 16 years;(More)
OBJECTIVE To examine the association of participation in physical sports activity during leisure time, sedentary behaviors, cardiorespiratory and muscular fitness, and weight status with cognitive performance in Spanish adolescents. STUDY DESIGN This cross-sectional study comprised a total of 1820 adolescents (958 female) aged 13.0 to 18.5 years.(More)
OBJECTIVES This study aims to review systematically the repeatability and validity of questionnaires used to assess occupational physical activity among healthy adults. METHODS We searched PubMed and Embase using occupational, work-related, job-related, physical activity, motor activity, and questionnaires as keywords. Two reviewers independently(More)
Recently, a set of specific quality evaluation criteria for health promotion research has been proposed in this journal. One of the quality criteria identified is the 'health promotion context'. With this paper we would like to contribute to the dialogue by specifying the importance of this criterion on the basis of our on experience with worksite-based(More)
BACKGROUND More knowledge is needed regarding the effectiveness of weight gain prevention programmes. The present study tested the 12-and 24-month effectiveness of the 'Netherlands Research programme weight Gain prevention' (NHF-NRG)-In Balance-project, a worksite-based intervention aimed at the prevention of weight gain. METHODS Twelve worksites (n = 553(More)
OBJECTIVE Previous studies have generally shown the effectiveness of prompts to promote stair use in worksites that mainly consist of white-collar workers. The present study tested whether an intervention using prompts is effective in stimulating stair use in two types of worksites: one consisting mainly of white-collar workers and one mainly of blue-collar(More)
We aimed to examine the associations of sleep duration with time spent on sedentary, moderate and vigorous activities in children and adolescents. The sample consisted of 2,241 (53.5% girls) Estonian and Swedish children (9–10 years) and adolescents (15–16 years), from the European Youth Heart Study, in 1998–1999. Sleep duration was calculated by the(More)
Very few examples of theory-driven and systematically developed weight gain prevention interventions for adults have been described in the literature. The present paper systematically describes the development, implementation and evaluation framework of a weight gain prevention programme directed at young adults at the worksite, namely the NHF-NRG In(More)
BACKGROUND To be able to draw any conclusions regarding the health effects of occupational physical activity (OPA), more information is needed regarding valid measures to assess OPA. Aims were to compare OPA as assessed with the International Physical Activity Questionnaire long version (IPAQ-L) with OPA assessed with an accelerometer and to assess the(More)
OBJECTIVES The aim of this study was to investigate changes over six years in physical activity and sedentary behavior assessed with accelerometry in a representative sample of Swedish adults. DESIGN A longitudinal study over six years. METHODS The cohort consisted of 1172 participants (46% males) in 2002 and 511 participants (46% males) in 2008, of(More)