Abstract Despite the large amount of research available on how engagement in football practice relates to future performance level among football players, similar information about the contribution of non-football activities is scarce. Based on data from 745 elite youth players this study aimed to identify …

Inter-team behaviour in elite-standard youth soccer during small-sided games. Soccer is a complex game with interacting players and teams. Team members cooperate to score a goal and opponent players try to keep the opponent from scoring. Tactical team behaviour seems to interact with the opponent team …

This presentation reports on the natural experiment. The developed toolbox with information regarding methods and measurements of physical activity, sedentary behavior and diet will be applied in the context of JOGG-Drenthe. This natural experiment is part of DEDIPAC, a sub project of the Joint Programming …

Factors affecting repeated sprint ability (RSA) were evaluated in a mixed-longitudinal sample of 48 elite basketball players 14 to 19 years of age (16.1±1.7 years). Players were observed on six occasions during the 2008-2009 and 2009-2010 seasons. Three basketball-specific field tests were administered …

The present study aimed to develop a football-specific self-report instrument measuring self-regulated learning in the context of daily practice, which can be used to monitor the extent to which players take responsibility for their own learning. Development of the instrument involved six steps: 1. Literature …

De gemiddelde puber beweegt veel te weinig. Slechts 15% van scholieren tussen de twaalf en zeventien jaar haalt de gezondheidsnorm van minstens één uur bewegen per dag. Gelukkig is de oplossing nabij. Shoppen blijkt bij pubermeisjes een enorme bijdrage te leveren aan hun gezondheid. Het door de stad …

Aggression in youth prison is considered a major problem, probably interfering with treatment and rehabilitative goals, and creating an unsafe work environment for group workers. The present study examined how inmates’ personality (dispositional characteristics) and living group climate (situational …

Over the past four years five studies in a Dutch correctional institution were conducted, which started by constructing and validating an instrument measuring group living climate, as little is known about group climate properties in youth prison. As incarcerated youth spent most of their time in …