Confronted by more and more global sustainabilityrelated challenges, society is increasingly aiming for a circular economy. Wouldn’t it be ideal if we could contribute to an economic model with closed loops, where products and materials that are at the end of their functional life are reused in new products …

OBJECTIVE: The association between groin pain and range of motion is poorly understood. The aim of this study was to develop a test to measure sport specific range of motion (SSROM) of the lower limb, to evaluate its reliability and describe findings in non-injured (NI) and injured football players. …

Kicking in Australian Football (AF) has been reported as the most important skill of the game. Nevertheless, no study has investigated kicking with IMU units. These units could be used to gain kicking data through an easy and assessable way. The purpose of this study was to analyse a kick executed by …

This article illustrates the ‘visual turn’ approach to sports history in an analysis of traditionally under-researched material from the late nineteenth century. Focusing on football (‘soccer’) action photography, we argue that interpreting this visual material contributes significantly to the exploration …

A broad agenda with societal urgency — From improving children's learning performances to delaying the onset of Alzheimer's disease. From productive employees to playing football to counteract radicalisation. From including the disabled to economic export product. Sport can make a positive contribution …

Presentation at ISSA Conference 2016 (International Sport Sociology Association): "Based on predominantly qualitative research, socio-critical sports sociologists from various (western) countries have in the past argued convincingly that heteronormativity and homophobia form early influences in organised …

Introduction The aim of this study is to examine the three interventions present when an adolescent amateur soccer player invokes maximum ‘’shot-power’’ on a soccer/football. Adolescence being defined as sixteen to eighteen years of age, and within a six-week period of time. Interventions consisting …

This paper is written with an aim of decreasing the constantly growing gap between the richest football clubs and the rest. During the past few years, this growing gap has been an ongoing process in the major European football leagues. This has also been the case in the Netherlands, where the clubs Ajax …

In order to determine whether small-sided game (SSG) locomotor performance can serve as a fitness indicator, we (1) compared 6-a-side (6v6) SSG-intensity of players varying in fitness and skill, (2) examined the relationship of the 6v6-SSG and Yo-Yo IR2 and (3) assessed the reliability of the 6v6-SSG. …

This study assesses the evolutionary leadership theory and the natural leadership instrument of Van Vugt and Ahuja (2011) in the context of youth elite football. The Evolutionary Leadership Theory is a comprehensive new way of looking at leadership. The evolutionary approach suggests that environmental …