Football is played worldwide and players often have to cope with hot and cold temperatures as well as high altitude conditions. The upcoming and past world championships in Brazil, Qatar and South Africa illustrate the necessity for behavioural strategies and adaptation to extreme environmental conditions. When playing football in the heat or cold, special clothing, hydration and nutritional and acclimatisation strategies are vital for high-level performance. When playing at high altitude, the reduced oxygen partial pressure impairs endurance performance and alters the technical and tactical requirements. Special high-altitude adaptation and preparation strategies are essential for football teams based at sea-level in order to perform well and compete successfully. Therefore, the aim of the underlying review is: 1) to highlight the difficulties and needs of football teams competing in extreme environmental conditions, 2) to summarise the thermoregulatory, physiological, neuronal and psychological mechanism, and 3) to provide recommendations for coping with extreme environmental conditions in order to perform at a high level when playing football in the heat, cold and at high altitude.
Transferring scientific knowledge to applied practitioners presents a challenge in sport science. Knowledge transfer, conceptualized as knowledge reuse and knowledge contribution, has mainly been studied in the context of specific topics, projects, or organizations. The purposes of this study were to investigate the determinants of knowledge transfer from a publicly available website to its users and to cluster users into different groups based on their level of knowledge transfer. The website www.sportsandscience.de is dedicated to translating evidence-based knowledge that is regularly generated in scientific studies into short and digestible information through e.g. videos and blogs, and provides opportunities for knowledge reuse and contribution. A theoretical model of knowledge transfer in organizations which was adapted to this context guided the study. Data from an online survey of registered website users were employed for the empirical analysis. The regression analyses showed that knowledge reuse is positively affected by ease of knowledge access and negatively by age. Knowledge reuse, job experience, and male gender have a significant positive effect on knowledge contribution. The findings suggest that the theoretical model is generally applicable to this context, but also highlight differences to the original organizational setting. Cluster analysis yielded three clusters: Frequent users, occasional users, and frequent contributors. Analyses of variances revealed significant differences among clusters regarding computer self-efficacy, job experience, gender, age, employment, interested sports, and conditional skills, but not concerning education and formal qualifications. Implications for improving knowledge transfer of such a website are provided.
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