Background Running-related injuries (RRIs) can be considered the primary enemy of runners. Most literature on injury prediction and prevention overlooks the mental aspects of overtraining and under-recovery, despite their potential role in injury prediction and prevention. Consequently, knowledge on the role of mental aspects in RRIs is lacking. Objective To investigate mental aspects of overtraining and under-recovery by means of an online injury prevention programme. Methods and analysis The ‘Take a Mental Break!’ study is a randomised controlled trial with a 12 month follow-up. After completing a web-based baseline survey, half and full marathon runners were randomly assigned to the intervention group or the control group. Participants of the intervention group obtained access to an online injury prevention programme, consisting of a running-related smartphone application. This app provided the participants of the intervention group with information on how to prevent overtraining and RRIs with special attention to mental aspects. The primary outcome measure is any self-reported RRI over the past 12 months. Secondary outcome measures include vigour, fatigue, sleep and perceived running performance. Regression analysis will be conducted to investigate whether the injury prevention programme has led to a lower prevalence of RRIs, better health and improved perceived running performance. Ethics and dissemination The Medical Ethics Committee of the University Medical Center Utrecht, the Netherlands, has exempted the current study from ethical approval (reference number: NL64342.041.17). Results of the study will be communicated through scientific articles in peer-reviewed journals, scientific reports and presentations on scientific conferences.
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Athlete development depends on many factors that need to be balanced by the coach. The amount of data collected grows with the development of sensor technology. To make data-informed decisions for training prescription of their athletes, coaches could be supported by feedback through a coach dashboard. The aim of this paper is to describe the design of a coach dashboard based on scientific knowledge, user requirements, and (sensor) data to support decision making of coaches for athlete development in cyclic sports. The design process involved collaboration with coaches, embedded scientists, researchers, and IT professionals. A classic design thinking process was used to structure the research activities in five phases: empathise, define, ideate, prototype, and test phases. To understand the user requirements of coaches, a survey (n = 38), interviews (n = 8) and focus-group sessions (n = 4) were held. Design principles were adopted into mock-ups, prototypes, and the final coach dashboard. Designing a coach dashboard using the co-operative research design helped to gain deep insights into the specific user requirements of coaches in their daily training practice. Integrating these requirements, scientific knowledge, and functionalities in the final coach dashboard allows the coach to make data-informed decisions on training prescription and optimise athlete development.
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Van een studie bewegingswetenschappen, naar onderzoek in overtraining bij sporters en militairen, tot het bestuderen van depressies bij jongeren. Lector Esther Nederhof kwam met een grote omweg terecht bij het onderwerp van haar lectoraat bij Hogeschool Van Hall Larenstein: Gezonde en Duurzame Voeding en Welvaartsziekten. Toch draagt deze multidisciplinaire achtergrond zeker bij aan haar huidige onderzoek, waar juist de gezonde functies van de mens centraal staan.
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In deze workshop werden resultaten van het 'Voor iedereen een app?! project gepresenteerd. Ook werd een discussie gevoerd over de inzet van sport-apps door sportprofessionals aan de hand van stellingen.
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Participation in sport can positively impact young lives by promoting social development and also physical and mental health and well-being. However, several challenges related to sport participation still exist, such as dropout, health risks related to overtraining, and misconceptions about what evidence-based sport coaching knowledge is. The present chapter critically discusses the scientific and cultural premises on which current coach education in sport is based and offers reflections on how this education can be developed and improved. We suggest that current sports science models, characterised by separate siloes of knowledge, may limit holistic approaches to sports coaching. Additionally, these systems of knowledge are created by power dynamics that are explicitly and implicitly valued in coach education, leading to the production of normative ideas about sports coaching and athlete development. This limited view may lead to blind spots in coach expertise development and hinder the improvement of coaching and coach education. We conclude by sharing some ideas that may contribute to the transformation of coach education through the design of more transdisciplinary approaches in coaching courses.
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Aim: To investigate the effects of exercise on salivary concentrations of inflammatory markers by analyzing a panel of 25 inflammatory markers in subjects who had participated in bicycle ergometer tests varying in workload and hydration status. Methods: Fifteen healthy young men (20-35 years) had performed 4 different exercise protocols of 1 hour duration in a randomly assigned cross-over design, preceded by a rest protocol. Individual workloads depended on participant's pre-assessed individual maximum workload (Wmax): rest (protocol 1), 70% Wmax in hydrated (protocol 2) and dehydrated (protocol 3) state, 50% Wmax (protocol 4) and intermittent 85%/55% Wmax in 2 min blocks (protocol 5). Saliva samples were collected before (T0) and immediately after exercise (T1), and at several time points after exercise (2 hours (T3), 3 hours (T4), 6 hours (T5) and 24 hours (T6)). Secretory Leukocyte Protease Inhibitor (SLPI), Matrix Metallopeptidase-9 (MMP-9) and lactoferrin was analyzed using a commercial ELISA kit, a panel of 22 cytokines and chemokines were analyzed using a commercial multiplex immunoassay. Data was analyzed using a multilevel mixed linear model, with multiple test correction. Results: Among a panel of 25 inflammatory markers, SLPI concentrations were significantly elevated immediately after exercise in all protocols compared to rest and higher concentrations reflected the intensity of exercise and hydration status. MMP-9 showed a significant increase in the 70% Wmax dehydrated, 50% Wmax and intermittent protocols. Conclusions: Salivary concentrations of SLPI and MMP-9 seem associated with exercise intensity and hydration status and may offer non-invasive biomarkers to study (local) inflammatory responses to different exercise intensities in human studies. sa
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Tweede artikel over lerend vermogen bij dementerenden. De levenskwaliteit van mensen met dementie blijkt verhoogd te kunnen worden door het geheugen en lerend vermogen aan te spreken. Twee recente studies van het lectoraat psychogeriatrie aan De Haagse Hogeschool in samenwerking met de universiteit van Bari (Italië) bevestigen dat er nog opmerkelijk positieve resultaten te verwachten zijn met foutloos leren, een variant van operant leren. Deel één is gepubliceerd in het aritkel: Lerend vermogen bij dementie, Frans Hoogeveen.
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Brochure from the Inauguration of Klaas Dijkstra, professor Computer Vision and Data Science
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PURPOSE: The aim of the present study was to investigate and compare coaches' and players' perceptions of training dose for a full competitive season. METHODS: Session Rating of Perceived Exertion (session-RPE), duration and training load (session-RPE * duration) of 33 professional soccer players (height 178,2 ± 6,6 cm; weight 70,5 ± 6,4 kg; percentage of fat 12,2 ± 1,6) from an U19 and U17 squad were compared with the planned periodization of their professional coaches. Before training, coaches filled in the session Rating of Intended Exertion (session-RIE) and duration (minutes) for each player. Players rated session-RPE and training duration after each training session. RESULTS: Players perceived their intensity and training load (2446 sessions in total) significantly harder than what was intended by their coaches (P < 0.0001). The correlations between coaches' and players' intensity (r = .24), duration (r = .49) and load (r = .41) were weak (P < 0.0001). Furthermore, for coach-intended easy and intermediate training days, players reported higher intensity and training load (P < 0.0001). For hard days as intended by the coach, players reported lower intensity, duration and training load (P < 0.0001). Finally, first year players from the U17 squad perceived training sessions harder than second year players (P < 0.0001). CONCLUSION: The results indicate that young elite soccer players perceive training harder than what was intended by the coach. These differences could lead to maladaptation to training. Monitoring of the planned and perceived training load of coaches and players may optimize performance and prevent players from overtraining.
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