Purpose: Literature detailing the effectiveness of school-based physical activity promotion in- terventions in prevocational adolescents was reviewed to identify effective intervention characteristics.Methods: The search strategy assessed studies against inclusion criteria study design, study population, school setting, language, and construct. The risk of bias of the included studies was assessed, and extractions were made of the physical activity (PA) level outcome measures and intervention characteristics regarding organizational, social, and content features. A meta-analysis was conducted to determine the overall effect of the interventions on the PA level. Identification of effective intervention characteristics was done by subgroup analyses. Meta-regression analysis was performed with PA level as dependent variable and intervention characteristics as covariates. Results: A total of 40 eligible studies was included for meta-analyses. Among the included studies, the overall intervention effect on increasing the PA level of prevocational adolescents was weak (standardized mean difference [SMD] .19, 95% confidence interval [CI] .12e.27). Intervention characteristics that improve the effect size to a moderate level were intracurricular PA (SMD .43, 95% CI .19e.68), involving school staff in an intracurricular intervention (SMD .37, 95% CI .16e.58) and a tailored intracurricular intervention (SMD .35, 95% CI .13e.58). Meta-regression analysis confirmed PA as a positive predictor.Conclusions: The effect of a school-based PA intervention was small to moderate. A sensible choice in the assembly of a multicomponent school-based PA intervention increases the effectiveness considerably. Physical education teachers, school administrators, and policy makers should consider organizational (intracurriculum, short and medium duration), personal (tailoring, participation), social (school staff) and content (PA) determinants.
MULTIFILE
Due to the rise of knowledge work since the 1980s, high job autonomy and high task variety have become common job characteristics. Knowledge workers increasingly work across multiple locations, using advanced information and communication technologies; a trend that is expected to accelerate in the post-COVID-19 world of work. As these developments fundamentally change the use of office work environments, organizations and workplace professionals have been searching for new ways to facilitate the workforce more effectively and efficiently. In the past two decades, more and more of them seem to have found the ultimate solution in activity-based working (ABW). According to this concept, workers share a variety of non-assigned work settings, enabling them to use different work settings in accordance with their varying tasks. Yet, outcomes of AWB environments generally fall short of expectations. Remarkably, while sharing the same ABW environment, some workers seem to experience fit while others do not.Optimization of perceived fit with ABW environments is important fororganizations, since it is linked to various work outcomes. Currently, this isparticularly relevant in the context of expected post-COVID-19 changes in workpractices. To find clues for optimization of ABW practice, the current PhD research project was designed to examine how workers’ jobs, tasks, behaviors, psychological needs, and demographic characteristics may be related to their perceived fit. Two survey-based studies revealed relevant workers’ attributes, which were further examined in experience-sampling field studies and a virtual reality experiment. From the findings, a clear profile arises of workers who best fit with ABW environments, i.e.: high task variety, job autonomy, external and internal mobility, social interaction, and need for relatedness; low need for privacy; few highcomplexity tasks, many non-individual tasks; appropriately using open and closed work settings; frequently switching between work settings; relatively young age.
