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'Take a Mental Break!' study

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.

365 MOVE HEALTHY-

Background: Despite the importance of sports injury prevention in youth, no broad scale approaches that work in real-life situations with significant positive effects exist. Main reasons for this are poor uptake and maintenance of current sports injury prevention exercises.Objective: In order to improve uptake of sports injury prevention routines, this project set out to: 1. identify the specifics of current injury prevention programs within 6 European countries, and 2: to establish wishes and needs regarding injury prevention of the end-users (sport coaches, physical educators and youth) within 6 European countries.Design: Semi-structured interviews and focus group sessions.Setting: Youth sports teams and physical education (PE) classes.Patients (or Participants): Interviews and focus group sessions were performed within 6 participating countries (Belgium, Denmark, Lithuania, Romania, The Netherlands, United Kingdom). National stakeholders were interviewed to identify injury prevention programs. The program owners of the identified programs were then individually interviewed. The focus group sessions were organized with youth basketball and soccer players and PE pupils. Separate focus group sessions were organized for basketball/soccer coaches and physical educators.Interventions (or Assessment of Risk Factors): This qualitative study provided input for the development of a freely available ICT based platform with video material of routines designed to prevent sports injuries in youth.Main Outcome Measurements: Overview of country specific results of interviews and focus groups.Results: This study will describe the current availability of national injury prevention programs within 6 European countries. The results of the focus group sessions will establish the differences in beliefs regarding injury prevention in 6 European countries regarding injury prevention.Conclusions: In the coming year, the Move Healthy project will use the qualitative results of this study to develop a freely available ICT based platform with video material of routines developed to prevent sports injuries in youth.

Monitoring of sport injuries in young elite soccer players

Revised approach to the role of fatigue in anterior cruciate ligament injury prevention

BACKGROUND: Causes of anterior cruciate ligament (ACL) injuries are multifactorial. Anterior cruciate ligament injury prevention should thus be approached from a multifactorial perspective as well. Training to resist fatigue is an underestimated aspect of prevention programs given that the presence of fatigue may play a crucial role in sustaining an ACL injury.OBJECTIVES:The primary objective of this literature review was to summarize research findings relating to the kinematic and kinetic effects of fatigue on single-leg landing tasks through a systematic review and meta-analysis. Other objectives were to critically appraise current approaches to examine the effects of fatigue together with elucidating and proposing an optimized approach for measuring the role of fatigue in ACL injury prevention.METHODS:A systematic literature search was conducted in the databases PubMed (1978-November 2017), CINAHL (1992-November 2017), and EMBASE (1973-November 2017). The inclusion criteria were: (1) full text, (2) published in English, German, or Dutch, (3) healthy subjects, (4) average age ≥ 18 years, (5) single-leg jump landing task, (6) evaluation of the kinematics and/or kinetics of the lower extremities before and after a fatigue protocol, and (7) presentation of numerical kinematic and/or kinetic data. Participants included healthy subjects who underwent a fatigue protocol and in whom the effects of pre- and post-fatigue on three-dimensional lower extremity kinematic and kinetics were compared. Methods of data collection, patient selection, blinding, prevention of verification bias, and study design were independently assessed.RESULTS:Twenty studies were included, in which four types of single-leg tasks were examined: the single-leg drop vertical jump, the single-leg drop landing, the single-leg hop for distance, and sidestep cutting. Fatigue seemed to mostly affect initial contact (decreased angles post-fatigue) and peak (increased angles post-fatigue) hip and knee flexion. Sagittal plane variables at initial contact were mostly affected under the single-leg hop for distance and sidestep cutting conditions whilst peak angles were affected during the single-leg drop jump.CONCLUSIONS:Training to resist fatigue is an underestimated aspect of prevention programs given that the presence of fatigue may play a crucial role in sustaining an ACL injury. Considering the small number of variables affected after fatigue, the question arises whether the same fatigue pathways are affected by the fatigue protocols used in the included laboratory studies as are experienced on the sports field.

The PIE=M project

Physical inactivity has led to an increase in the prevalence of lifestyle-related chronic diseases on a global scale. There is a need for more awareness surrounding the preventive and curative role of a physically active lifestyle in healthcare. The prescription of physical activity in clinical care has been advocated worldwide through the ‘exercise is medicine’ (E=M) paradigm. However, E=M currently has no position in general routine hospital care, which is hypothesized to be due to attitudinal and practical barriers to implementation. This study aims to create an E=M tool to reduce practical barriers to enforcing E=M in hospital care. Firstly, this project will perform qualitative research to study the current implementation status of E=M in clinical care as well as its facilitators and barriers to implementation among clinicians and hospital managers. Secondly, an E=M tool towards application of active lifestyle interventions will be developed, based on a prediction model of individual determinants of physical activity behavior and local big data, which will result in a tailored advice for patients on motivation and physical activity. Thirdly, the feasibility of implementing the E=M-tool, as designed within this project, will be investigated with a process evaluation, conducting a pilot-study which will integrate the tool in routine care in at least four clinical departments in two Dutch hospitals. This project will give insight in the current implementation status of E=M and in factors that influence the actual E=M implementation. Secondly, an E=M tool will be designed providing a tailored E=M prescription for patients as part of clinical care. Thirdly, an implementation strategy will be developed for implementation of the E=M tool in clinical practice. This project envisages an extensive continuation of research on the implementation of E=M, supports the mutual decision making process of lifestyle referral of clinicians and will provide insights which can be used to assist in implementing physically active lifestyle prescription in the medical curriculum.

Principles of motor learning to support neuroplasticity after ACL injury

Athletes who wish to resume high-level activities after an injury to the anterior cruciate ligament (ACL) are often advised to undergo surgical reconstruction. Nevertheless, ACL reconstruction (ACLR) does not equate to normal function of the knee or reduced risk of subsequent injuries. In fact, recent evidence has shown that only around half of post-ACLR patients can expect to return to competitive level of sports. A rising concern is the high rate of second ACL injuries, particularly in young athletes, with up to 20% of those returning to sport in the first year from surgery experiencing a second ACL rupture. Aside from the increased risk of second injury, patients after ACLR have an increased risk of developing early onset of osteoarthritis. Given the recent findings, it is imperative that rehabilitation after ACLR is scrutinized so the second injury preventative strategies can be optimized. Unfortunately, current ACLR rehabilitation programs may not be optimally effective in addressing deficits related to the initial injury and the subsequent surgical intervention. Motor learning to (re-)acquire motor skills and neuroplastic capacities are not sufficiently incorporated during traditional rehabilitation, attesting to the high re-injury rates. The purpose of this article is to present novel clinically integrated motor learning principles to support neuroplasticity that can improve patient functional performance and reduce the risk of second ACL injury. The following key concepts to enhance rehabilitation and prepare the patient for re-integration to sports after an ACL injury that is as safe as possible are presented: (1) external focus of attention, (2) implicit learning, (3) differential learning, (4) self-controlled learning and contextual interference. The novel motor learning principles presented in this manuscript may optimize future rehabilitation programs to reduce second ACL injury risk and early development of osteoarthritis by targeting changes in neural networks.