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Objective To calculate the prevalence rates of mental health symptoms among female professional football players over a 12-month period and to explore the associations of severe injury and related surgery with mental health symptoms among female professional footballers.Methods An observational prospective cohort study was conducted over a 12-month follow-up period by distributing an electronic questionnaire three times. The questionnaire was based on validated screening tools for assessing mental health symptoms.Results A total of 74 female professional football players participated in this study. Mental health symptoms ranged from 1% for substance misuse to 65% for sport-psychological distress at baseline, from 6% for anxiety to 53% for sport-psychological distress 6 months postbaseline and from 3% for substance misuse to 55% for sport-psychological distress 12 months postbaseline. The prevalence of disordered eating remained between 15% and 20% over the 12-month period. Only one of the associations was statistically significant. Female professional football players were nearly twice as likely to report sport-related psychological distress following every surgery.Conclusions The substantial prevalence of mental health symptoms among female professional football players emphasises the need for increased attention, awareness and interventions. Additionally, female professional football players are nearly twice as likely to report sport-related psychological distress after each surgery. Sports medicine physicians and mental health professionals working in female football should provide standard care, which involves identifying, monitoring and implementing tailored interventions for mental health symptoms.

Introduction Previous studies showed that the Nordic hamstring exercise (NHE) effectively prevents primary hamstring injury. However, no study investigated the secondary preventing effect of the NHE on hamstring reinjury. The primary purpose of this study is to investigate the effectiveness of the NHE for preventing hamstring reinjury after return to play (RTP) following a hamstring injury in football players. The secondary purpose is to determine the effect of the NHE on sprint and jump performance.Methods and analysis This is an international multicentre, prospective, parallel-group randomised controlled trial study. Subjects include male or female football players aged 18–40 years and within 1 week of RTP following a hamstring injury will be randomised into Nordics or a control group. Subjects in both groups continue their regular football training, but the Nordics group will perform an additional NHE programme. An online questionnaire will be sent to the subjects in both groups once per week within the first 10 weeks, then continued at months 6, 9 and 12. In a (performance) substudy, we will evaluate the effect of the NHE on sprint and vertical jump performance at three time points (at the beginning of the study, after 10 weeks and 12 months of follow-up).The primary outcomes are the incidence of hamstring reinjury within 2 and 12 months. The secondary outcomes are sprint and jump performance, adherence to the programme, duration of reinjury and reinjury burden.Ethics and dissemination This study is approved by the medical ethics committee of Amsterdam University Medical Center (UMC) in the Netherlands (METC 2021_117), Faculty of Medicine Universitas Gadjah Mada in Indonesia (KE/FK/1248/EC/2021), Norwegian School of Sport Sciences in Norway (number 216–2 70 122) and Denmark (ethical submission in process). The study’s findings will be disseminated in scientific peer-reviewed journals and presented at international conferences.Trial registration number NL9711.

IntroductionTransitioning out of professional football is a challenging time in most players’ lives. During these preretirement and postretirement years, professional footballers may struggle with their mental, musculoskeletal, neurocognitive and cardiovascular health. Currently, longitudinal data about these health conditions are lacking. This article presents the design of a prospective cohort study with the primary aim of gathering epidemiological evidence about the onset and course of mental, musculoskeletal, neurocognitive and cardiovascular health conditions in professional footballers during their preretirement and postretirement years and evaluating the associations between risk indicators and the health conditions under study in these players.Methods and analysisAn observational prospective cohort study with repeated measurements over a follow-up period of 10 years will be conducted among at least 200 professional footballers (male; 27 (±1) years old). Mental health will be explored by assessing symptoms of distress, anxiety, depression, sleep disturbance, alcohol misuse, drug misuse and disordered eating. Musculoskeletal health will be explored by assessing severe joint injury and related surgery, clinical and radiological osteoarthritis, and joint function (hips, knees and ankles). Neurocognitive health will be explored by assessing the concussion, brain structure and functioning, and neurocognitive functioning. Cardiovascular health will be explored by assessing blood pressure, lipid profile and ECG abnormalities.Ethics and disseminationEthical approval for the study was provided by the Medical Ethics Review Committee of the Amsterdam University Medical Centers. The results of the study will be submitted to peer-reviewed journals, will be presented at scientific conferences and will be released in the media (postpublication).Trial registration numberThe Dutch Trial Registry (Drake Football Study NL7999).

Objectives This article describes (1) the systematic development of the intervention and (2) the assessment of its feasibility (in terms of relevancy, suitability, satisfaction and added value).Methods The intervention was developed based on the first four steps of the Intervention Mapping and Knowledge Transfer Scheme processes. Subsequently, a qualitative research based on a one-group post-test cross-sectional design was conducted. Eight retired professional footballers underwent the developed intervention and its feasibility (operationalised in relevancy, suitability, satisfaction and added value) was assessed by means of a questionnaire and interview.Results An After Career Consultation (ACC) was developed with a focus on five main domains: (1) detraining from professional football; (2) remission of osteoarthritis; (3) promotion of healthy lifestyle; (4) preventing mental and cognitive health problems; and (5) employment and education. The ACC relies on three components: (1) raising self-awareness about potential physical, mental and social health problems after a career in professional football; (2) medical examination (60 min) with thorough medical history and general physical examination; and (3) follow-up during 3 months (if necessary) about optimal skills and strategies to empower physical, mental and social health and quality of life. The relevancy, suitability, satisfaction and added value of the ACC were positively evaluated by the retired professional footballers.Conclusion The ACC was developed with a focus on five main health-related domains. The feasibility of the ACC was positively assessed by retired professional footballers, while the suggestion was made to repeat the ACC in the initial years after football retirement.