BMJ Open Sport & Exercise Medicine最新文献

Objective: This cross-sectional study aimed to investigate the role of low energy availability (LEA) in the interplay between depression and disordered eating/eating disorders (DE/EDs) among female athletes. The International Olympic Committee consensus statement on Relative Energy Deficiency in Sport (REDs) identified depression as both an outcome of LEA and a secondary risk factor for REDs. However, the direct link between LEA and depression has yet to be fully established.

Methods: We assessed 57 female athletes participating in weight-sensitive sports at different levels of competition training at least four times a week. Assessment was conducted using laboratory analyses, clinical interviews and the Patient Health Questionnaire-9 questionnaire. Participants were recruited through various channels, including German sports clubs, Olympic training centres, social media platforms and the distribution of flyers at competitions. Indicators of LEA were defined if at least two of the following three physiological indicators were present: menstrual disturbances, suppressed resting metabolic rate and suppressed thyroid hormones. Logistic and linear regression analysis were used to examine the relationship between LEA, depression and DE/ED.

Results: The lifetime prevalence of depressive disorders was 29.6%. 19% of the participants were diagnosed with an ED, and an additional 22.6% exhibited DE.LEA was not significantly associated with either lifetime prevalence of depressive disorders or current depressive symptoms. However, a significant association was found between depression and DE/ED in terms of both lifetime prevalence and current depressive symptoms. DE/ED increased the probability of lifetime prevalence of depressive disorders by 34% (19%-49%) compared with normal eating behaviour.

Conclusion: We found no evidence that LEA is an independent factor for depression in female athletes. Its association with LEA and REDs appears to occur primarily in the presence of DE/ED.

Objectives: To compare the incidence of headers, attempted headers, and other head impacts, and the difference in heading descriptors, including technical performance, between men and women in a purposive sample of FIFA World Cup 2022 (FWC22) and FIFA Women's World Cup (FWWC23) matches.

Methods: Video analysis of all observed headers, attempted headers and other head impacts during eight FWC matches (FWC22 (n=4); FWWC23 (n=4)) where the same national teams competed. Heading descriptors (including ball delivery method, purpose of the header and involvement of other players) and technical performance of each header (including controlled or uncontrolled header, use of upper body, point of head contact) were analysed using negative binomial regression analyses with men as the reference group (reported as incidence rate ratios (IRR)). Timing of eye closure was analysed using a t-test; α-error, p=<0.05.

Results: From 973 head impacts, 845 (87%) were headers (FWC22 mean 5.0 headers/player/match, FWWC23 mean 4.6 headers/player/match), 93 (10%) were attempted headers and 35 (4%) were unintentional head impacts. When compared with men, women were less likely to perform controlled headers (73% vs 83%, IRR 1.20, p=0.01), use their foreheads (IRR 2.36, p=<0.001) and their upper body during the header (80% vs 88%, IRR 1.29, p=0.005). Women also closed their eyes earlier before the header (1.91 vs 1.56 frames, d=0.41, p=0.002).

Conclusion: There were significant differences in heading technique between women and men, which could be important to address in training to improve heading performance and potentially reduce short-term and long-term burden of heading.

This study explored youth floorball players' and coaches' perspectives on using the injury prevention exercise programmes (IPEPs) Knee Control or Knee Control+ (Knee Control programmes) and how to overcome barriers to programme use. We used a qualitative design with eight semistructured focus group discussions, six with players, 11-17 years old (n =42) and two with coaches (n =12). Data analysis followed the principles of qualitative content analysis. Three main categories emerged: challenges related to preventive training, promoting factors and solutions to facilitate the use of preventive training. To overcome barriers, players and coaches gave examples of how to tailor preventive programmes, such as adding joyful sport specific components. Player-perceived improved performance, with increased strength and speed from the preventive training, could be a promoting factor to increase motivation and enable IPEP use. Players and coaches offered examples of how to adapt and progress the preventive training by progressing gradually and choosing exercises that fit the team. Coaches emphasised that preventive training is important but difficult to prioritise in time-limited training sessions. Coaches' suggestions to overcome barriers were through collaboration and support from other coaches, to start using the IPEP at an early age, to keep it simple and motivating the players with, for example, positive role models. Players found the Knee Control exercises boring but necessary for injury prevention. Sometimes, coaches felt uncertain of their competence to use the Knee Control programmes and wished for support from the federation, club and other coaches. Players and coaches shared ideas on how to overcome barriers to IPEP use, such as to increase players' motivation, having a good structure, setting up routines for preventive training and to tailor the preventive training to the team. These findings can be used to further develop practical workshops and recommendations for programme use for players and coaches in youth team ball sports.

Background: Well-being declines during men's middle years, and while physical activity (PA) can have a positive influence, the type of PA that provides the greatest benefit is not clear. This cross-sectional study explored how participation in different types of PA is associated with the well-being and self-rated health of middle-aged and older men.

Methods: A representative sample of South Australian adults completed a survey which assessed time spent in a variety of physical activities and self-rated health, life worth, life satisfaction and previous day happiness and anxiety. This study focused on a subsample of men≥35 years of age (n=1019). Partition and isotemporal substitution analyses were used to explore relationships between different types of PA and self-rated health and well-being outcomes.

Results: Weekly PA was positively associated with all outcomes among middle-aged men (35-64 years), but only with self-rated health and life satisfaction in older men (65+ years). Substituting out 30 mins of team sport participation with cycling, fitness/gym-based activities or other recreational activities was associated with higher self-rated health in middle-aged men. In older men, substituting 30 mins of dance with most other types of PA was related with greater self-rated health and life worth.

Conclusions: Total weekly PA was consistently related to the self-rated health and well-being of middle-aged men, but less so among older men. Despite some substitution effects for self-rated health, for the most part well-being was not influenced by activity substitution, particularly among middle-aged men.

Objectives: Our study aimed to investigate how physical activity (PA) changes over an 11-year follow-up among adults from different socioeconomic positions (SEP) near retirement age. Moreover, an analysis of different PA types is considered.

Methods: We used data from the EPIC-Italy cohort. We evaluated PA using the Cambridge Physical Activity Index (CPAI) and the metabolic equivalent of tasks (MET) per hour of activity for recreational PA and household PA. Educational level was assessed using the Relative Index of Inequality (RII). Occupational classes were classified according to LIFEPATH Consortium knowledge. Logistic regression was used to analyse PA among SEP and changes during follow-up. Analyses were also conducted separately for sex.

Results: The higher educated were more prevalent in the higher quartile of recreational PA than the lower educated both at baseline and follow-up (37% vs 28% and 37% vs 27%, respectively). At the baseline, the lower educated had a higher risk of being physically inactive than the higher educated based on recreational PA (overall OR: 1.50, 95% CI 1.40 to 1.60). Manual workers did not show a higher risk of less PA than professionals/managers (overall OR: 1.03, 95% CI 0.91 to 1.16).At follow-up, the lower educated and manual workers showed a higher risk of being physically inactive (lower educated OR: 1.46, 95% CI 1.37 to 1.56; manual worker OR: 1.33, 95% CI 1.18 to 1.50). The analyses of changes in PA showed that those who were less educated or manual workers had a higher risk of worsening their PA during the follow-up period, particularly women in recreational PA and men in CPAI measurement.

Conclusion: Individuals who had a disadvantaged SEP showed a higher risk of performing less PA over time.

Objectives: To evaluate the use and modification of the Copenhagen Adduction Exercise in football (soccer) teams, including the reasons for modification and alternate injury-prevention strategies.

Methods: In this cross-sectional study, staff members from a convenience sample of 50 male elite, academy and amateur football teams in Norway, Germany and Austria completed an online questionnaire focussing on the implementation of the Copenhagen Adduction Exercise. Fourteen of the staff members also completed an interview.

Results: Forty-two teams (84%) reported using the Copenhagen Adduction Exercise, but the majority (65%) had modified the original programme. Modifications included changes to sets, repetitions, progressions and frequency and were particularly common among elite teams. The main reasons for modifications were managing overall player load, experiences and beliefs and individualisation. Despite modifications, all teams followed the basic principles of the original programme.

Conclusion: The adoption of the Copenhagen Adduction Exercise by football teams is high, but the vast majority of teams modify the programme. Despite these modifications, the basic principles of the programme are maintained.

Chronic low back disorders are the leading cause of direct and indirect healthcare burden globally. Exercise training improves pain intensity, mental health and physical function. However, the optimal prescription variables are unknown. We aim to compare the efficacy of various exercise dosages for chronic low back disorders to identify the optimal prescription variables. Six databases (Medline, SPORTDiscus, CINAHL, PsycINFO, EMBASE and CENTRAL), trial registries (ClinicalTrials.gov and WHO International Clinical Trials Registry Platform) and reference lists of prior systematic reviews will be searched, and we will conduct forward and backward citation tracking. We will include peer-reviewed randomised controlled trials (individual, cluster or cross-over trials) published in English or German language comparing exercise training to other exercise training or non-exercise training interventions (conservative, non-surgical, non-pharmacological, non-invasive treatments, placebo, sham, usual/standard care, no-treatment control, waitlist control) in adults with chronic low back disorders. Outcomes will include pain intensity, disability, mental health, adverse events, adherence rate, dropout rate and work capacity. Version 2 of the Cochrane risk-of-bias tool will be employed. The dose will be categorised as cumulative dose (total and weekly minutes of exercise training) and individual dose prescription variables (intervention duration, session duration, frequency and intensity). Dose-response model-based network meta-analysis will be used to assess the comparative efficacy of different exercise doses to determine a dose-response relationship. The certainty of evidence will be assessed using the Grading of Recommendations Assessment, Development and Evaluation. Information about optimal exercise training dosage will help in enhancing treatment outcomes.

This study explores elite athletes' experiences of psychotherapy administered by Swedish licensed psychologists or psychotherapists with and without specialisation in elite sports, addressing the research question: What do elite athletes experience as important for psychotherapy effectiveness when seeking treatment from a licensed clinical psychologist or psychotherapist? Five elite athletes (self-assigned women=4, self-assigned men=1; age range: 20-34 years) from three sports (fencing: n=2, handball: n=2, triathlon: n=1) volunteered to participate in interviews. All athletes had worked with more than one licensed psychologists/psychotherapist, either through a regional healthcare or an elite sports specialised clinic while being national or international elite sports level athletes. Data were inductively analysed by the use of reflexive thematic analysis. Trust and professionalism to the psychologist/psychotherapist were generated as an overarching theme. Themes created during data analysis included the psychologist/psychotherapist's (a) understanding of elite sports and of both the person and the athlete, (b) psychotherapeutic behaviours or skills (ie, holistic problem assessment, communication, empathy, validation, confidentiality, therapeutic alliance, goal-oriented content and ability to tailor psychotherapy to the athlete) and (c) conditions for psychotherapy (time, accessibility and appropriate support). Participants expressed difficulties in differentiating between qualified and unqualified mental health support providers. Mental health services originating within the sport context were perceived to improve accessibility and the possibility of regular sessions. Mental health services provided outside the immediate sporting context, with the psychologist/psychotherapist not being overly involved in sports, was however perceived to enable a more objective and holistic assessment of both non-sport and sport-related concerns impacting on athlete mental health. We conclude that sports organisations must facilitate athletes' access to psychological treatment, and additionally ensure that practitioners working with psychotherapy have professional expertise and are appropriately qualified. Sports organisations should also systematically evaluate mental health services to ensure quality and that they are up to date with best practices.

Physical activity (PA) promotes better cardiometabolic health, physical function, brain health and longevity. In contrast, prolonged sedentary behaviour (SB) is a risk factor for many chronic diseases and poor health. Limited research has evaluated or synthesised how competitive sports participation influences PA across the lifespan. Some evidence suggests, ironically, that former competitive athletes may be insufficiently active and current athletes may be highly sedentary away from sport. This study describes the protocol for a systematic review and meta-analysis on activity levels across the intensity spectrum in athletes, addressing the primary research question: is sports participation significantly associated with PA and/or SB among current and former competitive athletes? PubMed, Embase, Cochrane Database of Systematic Reviews, Web of Science and SPORTDiscus databases will be searched. Two reviewers will independently screen titles/abstracts and full texts of selected abstracts. Data will be extracted regarding the study population, sport played, PA measures and protocols, outcomes of interest and findings. Primary outcomes will include step counts, daily activity across the intensity spectrum (ie, sedentary, light, moderate and vigorous PA), metabolic equivalent of task and whole-day energy expenditure. Secondary outcomes will include additional accelerometry measures of PA, activity patterns and self-reported PA. The risk of bias will be assessed using the National Institutes of Health Study Quality Assessment Tools. Extracted data will be presented using narrative synthesis and tabular presentation. Meta-analyses will be conducted to determine outcomes with sufficient data.PROSPERO registration number: CRD42024469267.https://www.crd.york.ac.uk/prospero/display_record.php?RecordID=469267.

Objectives: Determining the prevalence of mental health and lifestyle risk factors (smoking, alcohol consumption, recreational drug use, gambling, family violence and anger management) in New Zealand (NZ) male professional rugby players.

Study design: Cross-sectional survey of mental health symptoms and lifestyle risk factors in male professional rugby players in NZ.

Methods: Players from all five NZ men's Super Rugby Franchises were invited to complete an online questionnaire (SportCHAT) measuring demographic status and mental health symptoms. Descriptive and interferential statistical analyses were used to identify the most prevalent mental health and lifestyle risk factors.

Results: 105 players participated in the study (response rate 52.5%). 51.4% of players were either at moderate or high risk for alcohol-related harm (defined as potential health, social, legal or financial problems linked to alcohol consumption). In comparison, 4.8% reported recreational drug use and 5% reported smoking tobacco. Twenty players (19%) reported engaging in gambling, with five of these reporting problematic gambling. 21% of players reported symptoms of depression, but none reached the 'mild depression' threshold of the Patient Health Questionnaire for Depression. Younger players (aged 20-29) were more likely to report symptoms of depression than older players (aged 30-39). The prevalence of anxiety symptoms was 17.1%. 66.7% of these players reported minimal symptoms (GAD-7 score 0-4) and 33.3% reported mild symptoms (GAD-7 score 5-9). Family violence was reported by 2.9% of respondents, while 12.4% reported issues with anger management. There were no significant differences between ethnic groups.

Conclusion: There is a higher prevalence of alcohol misuse and gambling, but lower reported rates of depression and anxiety symptoms in this cohort when compared with the general population.