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| 3. |
- Back, Jenny, 1984-, et al.
(författare)
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Drop-out from team sport among adolescents : A systematic review and meta-analysis of prospective studies
- 2022
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Ingår i: Psychology of Sport And Exercise. - Amsterdam : Elsevier. - 1469-0292 .- 1878-5476. ; 61
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Forskningsöversikt (refereegranskat)abstract
- During the last decades, an increased drop-out rate in adolescents’ team sport participation is observed. Given the potential adverse consequences of drop-out from team sport more information about risk factors for drop-out is warranted. The objectives of this systematic review were to (1) synthesise the literature on factors associated with future drop-out from team sport among adolescents and (2) investigate the strength of associations between drop-out and related factors with meta-analysis. The databases Academic Search Elite, ERIC, PsycINFO, PubMed and SPORTDiscus were searched for relevant publications from the earliest reported date until October 8, 2021. Articles were included if: (1) data about drop-out was collected; (2) the focus was on adolescents; (3) the context was team sport and (4) studies were of prospective design. We used the Risk of Bias Assessment Tool for Non-randomized Studies (RoBANS) to assess the risk of bias in included studies. A narrative synthesis was conducted according to the reporting guideline of synthesis without meta-analysis. Studies that presented statistical data necessary for the calculation of Hedge’s g effect sizes were included in the meta-analysis. In total, 16 studies met the inclusion criteria and were included in the narrative synthesis. The meta-analysis included 12 of the studies. Altogether, 6304 adolescent team sport players participated in the selected studies. Of those studies, most had a focus on intrapersonal factors relationship with drop-out. The results showed that constructs related to motivation as well as sport experience had the strongest relationships with drop-out. To prevent drop-out from adolescents’ team sport, organisations and clubs are recommended to focus on developing a high-quality motivation climate that facilitates motivation and enjoyment. © 2022 The Authors
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| 4. |
- Dunlop, Gordon, et al.
(författare)
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Examination of the validity of the Injury-Psychological Readiness to Return to Sport (I-PRRS) scale in male professional football players : A worldwide study of 29 professional teams
- 2023
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Ingår i: Journal of Sports Sciences. - Abingdon, Oxon : Routledge. - 0264-0414 .- 1466-447X. ; 41:21, s. 1906-1914
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Tidskriftsartikel (refereegranskat)abstract
- Perceived confidence is an important dimension of an athlete’s psychological readiness to return-to-play. However, there is no established and validated tool to evaluate confidence in professional football. This study aimed to provide preliminary evaluation of the internal structure of the Injury-Psychological Readiness to Return-to-Sport scale (I-PRRS) in a cohort of injured male professional footballers. Over an 18-month period, 29 teams from 17 leagues participated. Players sustaining injuries eliciting (Formula presented.) 3 weeks’ time-loss were recruited. Cross culturally adapted to 4 further languages, the I-PRRS was administered on two occasions: 1) day before returning-to-training and 2) day before returning-to-match-play. In total, 113 injuries were recorded with 96 completed I-PRRS data sets collected. Confirmatory factor analysis indicated the I-PRRS was a unidimensional scale, with all items measuring the same construct. The scale demonstrated good internal consistency (ω =.88). When examining longitudinal invariance of the I-PRRS across administration time-points, indices of model fit supported scalar invariance. There was preliminary evidence of good internal structure for the I-PRRS in professional male footballers. However, before further research involving the I-PRRS can be endorsed, efforts to confirm or refute empirical developments pertaining to psychological readiness are necessary. © 2024 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group.
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| 5. |
- Dunlop, Gordon, et al.
(författare)
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Return-to-Play Practices Following Hamstring Injury: A Worldwide Survey of 131 Premier League Football Teams
- 2020
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Ingår i: Sports Medicine. - : ADIS INT LTD. - 0112-1642 .- 1179-2035. ; 50:4, s. 829-840
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Tidskriftsartikel (refereegranskat)abstract
- Purpose Return-to-play (RTP) is an on-going challenge in professional football. Return-to-play related research is increasing. However, it is unknown to what extent the recommendations presented within research are being implemented by professional football teams, and where there are gaps between research and practice. The purposes of this study were (1) to determine if premier-league football teams worldwide follow a RTP continuum, (2) to identify RTP criteria used and (3) to understand how RTP decision-making occurs in applied practice. Methods We sent a structured online survey to practitioners responsible for the RTP programme in 310 professional teams from 34 premier-leagues worldwide. The survey comprised four sections, based on hamstring muscle injury: (1) criteria used throughout RTP phases, (2) the frequency with which progression criteria were achieved, (3) RTP decision-making process and (4) challenges to decision-making. Results One-hundred and thirty-one teams responded with a completed survey (42%). One-hundred and twenty-four teams (95%) used a continuum to guide RTP, assessing a combination of clinical, functional and psychological criteria to inform decisions to progress. One-hundred and five (80%) teams reported using a shared decision-making approach considering the input of multiple stakeholders. Team hierarchy, match- and player-related factors were common challenges perceived to influence decision-making. Conclusions General research recommendations for RTP and the beliefs and practices of practitioners appear to match with, the majority of teams assessing functional, clinical and psychological criteria throughout a RTP continuum to inform decision-making which is also shared among key stakeholders. However, specific criteria, metrics and thresholds used, and the specific involvement, dynamics and interactions of staff during decision-making are not clear.
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| 6. |
- Gredin, Viktor, 1986-, et al.
(författare)
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Psychology research in women’s soccer : a scoping review
- 2023
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Ingår i: Science and medicine in football. - Abingdon, Oxon : Taylor & Francis. - 2473-3938 .- 2473-4446.
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Forskningsöversikt (refereegranskat)abstract
- Previous research suggests that psychological factors play an important role in trying to explain and predict the participation, performance, and health of player and practitioners in soccer. However, most previous works have focused on specific research questions and included samples from male populations. As part of a larger Fédération Internationale de Football Association (FIFA) project aiming to steer women’s soccer research, our purpose with this scoping review was to give an overview of the current state of psychology-related research within women’s soccer. We searched five electronic databases up to April 2023, from which 280 original peer-reviewed articles met the inclusion criteria. Included records were inductively coded into 75 specific research topics and nine broader research categories. Population characteristics within each topic and category, and overall publication trends, were identified. The results revealed a growth in research attention, with notable increases in publication rates around the international competitions years, over the last two decades. While a notable number of abstracts did not report sufficient details about population age and/or playing levels, senior elite players were identified as the most common population studied. Most studies examined several topics from different research categories, with research focusing on emotions, moods and/or environmental factors, and the specific the topics of anxiety, stress, and coach behavior, receiving most research attention. Our study provides an informative mapping of all psychology-related research activity within women’s soccer, which will enhance researchers’ understanding of the current quantity of literature within this complex, heterogeneous, and growing area of research. © 2023 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group.
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| 7. |
- Ivarsson, Andreas, 1984-, et al.
(författare)
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Introduction to Sport Injuries
- 2020. - 4
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Ingår i: Psychological Bases of Sport Injuries. - Morgantown : Fitness Information Technology (FiT) Publishing. - 9781940067407 ; , s. 3-9
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Bokkapitel (övrigt vetenskapligt/konstnärligt)
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| 8. |
- Ivarsson, Andreas, 1984-, et al.
(författare)
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Mental health and well-being during COVID-19 lockdown : A survey case report of high-level male and female players of an Italian Serie A football club
- 2021
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Ingår i: Science and medicine in football. - Oxfordshire : Taylor & Francis Group. - 2473-3938 .- 2473-4446. ; 5:sup1, s. 70-75
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Tidskriftsartikel (refereegranskat)abstract
- Objectives: To describe high-level footballers’ levels and changes in mental health and well-being throughout a 8-week period of lockdown and restricted training during the COVID-19 pandemic.Method: One-hundred and one players belonging to four teams (women's and men's, first and U19 teams) of the same Italian Serie A club participated in the study. Data were collected through an online questionnaire, and administered at 2, 3, 5, 7 and 9 weeks after the start of the lockdown . Well-being, positive and negative affects measurements were examined.Results: Across the five measures, 36% of players reported clinical levels in depressive symptoms (scores ≤50) on at least one occasion. Thirteen percent of the players reported clinical levels on > 50% of the occasions. There was a decrease in depressive symptoms and negative affects over the period. No change was found in positive affects.Conclusions: High number of players reportedclinical levels of depressive symptoms compared to what was found previously in high-level athletes. The number decrease during the 8-week period. A similar trend was found for negative affects.Despite a higher prevalence in depressive symptoms earlier during lockdown, this improved as players progressed towards fewer restrictions. © 2021 Informa UK Limited, trading as Taylor & Francis Group.
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| 9. |
- Ivarsson, Andreas, 1984-, et al.
(författare)
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Predictive ability of psychological factors with future performance of football players : a systematic review with meta-analysis
- 2020
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Ingår i: Journal of Science and Medicine in Sport. - Chatswood : Elsevier. - 1440-2440 .- 1878-1861. ; 23:4, s. 415-420
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Tidskriftsartikel (refereegranskat)abstract
- Objectives: This systematic review had 3 key objectives: (1) to investigate whether psychological factors were associated with future football performance (e.g., progression to professional football, better game statistics during the next season); (2) to critically review the methodological approaches used in the included studies and summarize the evidence for the current research question; (3) to provide guidelines for future studies.Design: Systematic ReviewMethods: Electronic databases (SPORTDiscus, PubMed and PsycINFO) and previously published systematic and scoping reviews were searched. Only prospective studies were considered for inclusion.Results: Eleven published studies that reported 39 effect sizes were included. Psychological factors; task orientation, task-oriented coping strategies and perceptual-cognitive functions had small effects on future performance in football (ds = 0.20-0.29). Due to high risk of bias there were low certainty of evidence for psychological factors relationship with future football performance.Conclusions: Psychological factors investigated showed small effects on future football performance, however, there was overall uncertainty in this evidence due to various sources of bias in the included studies. Therefore psychological factors cannot be used as a sole deciding factor in player recruitment, retention, release strategies, however it would appear appropriate to include these in the overall decision-making process. Future, studies with more appropriate and robust research designs are urgently needed to provide more certainty around their actual role. © 2019 Sports Medicine Australia. Published by Elsevier Ltd. All rights reserved.
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| 10. |
- Jordet, Geir, et al.
(författare)
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Scanning, Contextual Factors, and Association With Performance in English Premier League Footballers : An Investigation Across a Season
- 2020
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Ingår i: Frontiers in Psychology. - Lausanne : Frontiers Media S.A.. - 1664-1078. ; 11
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Tidskriftsartikel (refereegranskat)abstract
- Scanning in football (soccer) denotes an active head movement where a player’s face is temporarily directed away from the ball to gather information in preparation for subsequently engaging with the ball. The aim of this study was to learn more about the ways that 27 elite professional football players in an English Premier League club use scanning in competitive matches, the conditions under which this behavior is exhibited, and the relationships between these behaviors and performance. Players were filmed across 21 matches, producing a total number of 9,574 individual ball possessions for analysis. Close-up video analyses of scanning show positional differences (with central midfielders and central defenders scanning most frequently, forwards least) and contextual differences (with relatively lower scanning frequency in situations with tight opponent pressure, in positions wide in the field and closer to the opponent’s goal, and under certain game state conditions). Players scan more frequently prior to giving passes than when they dribble, shoot, or only receive it, as well as prior to more long/forward passes compared to short/backward ones, although these differences are small. A Bayesian hierarchical model, which accounts for individual player differences and pass difficulty, suggests that the more a player scans, the higher the probability of completing a pass. In conclusion, match demands are likely to constrain the extent to which highly elite players scan, and scanning seems to have a small, but positive role in elite football players’ performance. © 2020 Jordet, Aksum, Pedersen, Walvekar, Trivedi, McCall, Ivarsson and Priestley.
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| 11. |
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| 12. |
- Martin, Simon, et al.
(författare)
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Psychological risk profile for overuse injuries in sport : An exploratory study
- 2021
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Ingår i: Journal of Sports Sciences. - Oxon : Routledge. - 0264-0414 .- 1466-447X. ; 39:17, s. 1926-1935
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Tidskriftsartikel (refereegranskat)abstract
- Overuse injuries account for a substantial part of sport injury incidence among athletes of various sports and levels. Despite the gradual onset of symptoms, athletes often persevere in training and competing. The present exploratory study aimed to identify a psychological risk profile for overuse injury. One hundred and forty-nine athletes competing in various sports responded to a range of questionnaires measuring the following psychological variables: negative life stress, perfectionistic concerns, perfectionistic strivings, athletic identity, and the coach-athlete relationship. Participants subsequently answered the OSTRC Overuse Injury Questionnaire on a weekly basis during a 10-week period. Using a latent profile analysis, athletes were classified into three latent profiles regarding their psychological characteristics. Athletes in the second profile, characterized by a combination of high athletic identity, perfectionistic concerns and negative life stress and poor coach-athlete relationship, were found to be significantly more often affected by overuse injuries (74% of the time) than individuals in the two other profiles (52% and 48% of the time, respectively). In conclusion, psychological factors may contribute to the risk of overuse injuries through complex interactions (i.e. accounting for interdependencies within a specific configuration of variables) rather than through their independent influences © 2021 Informa UK Limited, trading as Taylor & Francis Group
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| 13. |
- McCall, Alan, et al.
(författare)
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A Qualitative Study of 11 World-Class Team-Sport Athletes’ Experiences Answering Subjective Questionnaires : A Key Ingredient for ‘Visible’ Health and Performance Monitoring?
- 2023
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Ingår i: Sports Medicine. - Auckland : Adis International Ltd.. - 0112-1642 .- 1179-2035. ; 53, s. 1085-1100
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Tidskriftsartikel (refereegranskat)abstract
- Background: Athlete monitoring trends appear to be favouring objective over subjective measures. One reason of potentially several is that subjective monitoring affords athletes to give dishonest responses. Indeed, athletes have never been systematically researched to understand why they are honest or not. Objective: Because we do not know what motivates professional athletes to be honest or not when responding to subjective monitoring, our objective is to explore the motives for why the athlete may or may not respond honestly. Methods: A qualitative and phenomenological approach was used, interviewing 11 world-class team-sport athletes (five women, six men) about their experiences when asked to respond to subjective monitoring questionnaires. Interview transcripts were read in full and significant quotations/statements extracted. Meanings were formulated for each interviewees’ story and assigned codes. Codes were reflected upon and labelled as categories, with similar categories grouped into an overall theme. Themes were examined, articulated, re-interpreted, re-formulated, and written as a thematic story, drawing on elements reported from different athletes creating a blended story, allowing readers a feel for what it is like to live the experience. Results: Overall, four key themes emerged: (i) pursuit of the ideal-self, (ii) individual barriers to athlete engagement, (iii) social facilitators to athlete engagement; and (iv) feeling compassion from performance staff. Conclusions: Our main insight is that athletes’ emotions play a major role in whether they respond honestly or not, with these emotions being driven at least in part by the performance staff asking the questions. © 2023, The Author(s).
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| 14. |
- McCall, Alan, et al.
(författare)
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Injury prevention strategies, coach compliance and player adherence of 33 of the UEFA Elite Club Injury Study teams: a survey of teams head medical officers
- 2016
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Ingår i: British Journal of Sports Medicine. - : BMJ PUBLISHING GROUP. - 0306-3674 .- 1473-0480. ; 50:12, s. 725-730
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Tidskriftsartikel (refereegranskat)abstract
- Purpose (1) To quantify current practice at the most elite level of professional club football in Europe with regard to injury prevention strategy; (2) to describe player adherence and coach compliance to the overall injury prevention programme. Methods A structured online survey was administered to the Head medical officers of 34 elite European teams currently participating in the UEFA Elite Club Injury Study. The survey had 4 sections; (1) risk factors for injury, (2) assessment and monitoring of injury risk, (3) prevention strategies and (4) coach compliance and player adherence to the injury prevention process. Results 33 (97%) Medical officers of the teams responded. The most important perceived injury risk factor was previous injury. Four of the top 6 risk factors physical fitness, accumulated fatigue, reduced recovery time between matches and training load-were related to player workload. The top 3 preventative exercises were eccentric, balance/proprioception and core training. Regarding monitoring, the top 3 tools implemented were measurement of workload, subjective wellness and a general medical screen. The subjectively rated level of coach compliance in UEFA teams was perceived as high, while the player adherence varied from none at all to perfect. Summary and conclusion Medical officers place importance on workload-related variables as risk factors for injury in elite European football players. A lack of consistently high player adherence may limit the effects of contemporary injury prevention programmes in elite European footballers.
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| 15. |
- McCall, Alan, et al.
(författare)
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Internal workload and non-contact injury: a one-season study of five teams from the UEFA Elite Club Injury Study
- 2018
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Ingår i: British Journal of Sports Medicine. - : BMJ PUBLISHING GROUP. - 0306-3674 .- 1473-0480. ; 52:23, s. 1517-1522
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Tidskriftsartikel (refereegranskat)abstract
- Background Internal workload (ie, from training and matches) is considered one of the most important injury risk factors for elite European football teams, however there is little published evidence to support this belief. Objective We examined the association and predictive power of internal workload and non-contact injuries. Methods Five elite European teams, 171 players (age: 25.1 +/- 4.9 years; height:181.6 +/- 6.7 cm; body mass: 77.5 +/- 7.2 kg) participated over one full competitive season. Using the session-rating of perceived exertion (s-RPE) method players internal workloads were calculated for acute week, week-to-week changes, cumulated weeks, chronic weeks and acute:chronic ratios and analysed for association with non-contact injury (using generalised estimating equations (GEE)). Associated variables from GEE analysis were categorised into very low to very high workload zones and checked for increased relative risks (RRs). Associated workload variables were also analysed for predictive power (receiver operating characteristics). Results Acute:chronic workload ratios at 1:3 and 1:4 weeks were associated with non-contact injury (Pamp;lt;0.05). Specifically, a greater risk of injury was found for players with an acute:chronic workload at 1:4 weeks of 0.97 to 1.38 (RR 1.68; 95% CI 1.02 to 2.78, likely harmful) and amp;gt;1.38 (RR 2.13; 95% CI 1.21 to 3.77, very likely harmful) compared with players whose acute:chronic workload was 0.60 to 0.97. An acute:chronic workload 1:3 of amp;gt;1.42 compared with 0.59 to 0.97 displayed a 1.94 times higher risk of injury (RR 1.90; 95% CI 1.08 to 3.36, very likely harmful). Importantly, acute:chronic workload at both 1:4 and 1:3 showed poor predictive power (area under the curve 0.53 to 0.58) despite previous reports and beliefs that it can predict injury. Conclusions This study provides evidence for the acute:chronic internal workload (measured using s-RPE) as a risk factor for non-contact injury in elite European footballers. However the acute:chronic workload, in isolation, should not be used to predict non-contact injury.
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| 17. |
- Waldén, Markus, et al.
(författare)
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Football-specific extension of the IOC consensus statement: methods for recording and reporting of epidemiological data on injury and illness in sport 2020
- 2023
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Ingår i: British Journal of Sports Medicine. - : BMJ PUBLISHING GROUP. - 0306-3674 .- 1473-0480. ; 57, s. 1341-1350
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Tidskriftsartikel (refereegranskat)abstract
- Several sports have published consensus statements on methods and reporting of epidemiological studies concerning injuries and illnesses with football (soccer) producing one of the first guidelines. This football-specific consensus statement was published in 2006 and required an update to align with scientific developments in the field. The International Olympic Committee (IOC) recently released a sports-generic consensus statement outlining methods for recording and reporting epidemiological data on injury and illness in sport and encouraged the development of sport-specific extensions.The Federation Internationale de Football Association Medical Scientific Advisory Board established a panel of 16 football medicine and/or science experts, two players and one coach. With a foundation in the IOC consensus statement, the panel performed literature reviews on each included subtopic and performed two rounds of voting prior to and during a 2-day consensus meeting. The panel agreed on 40 of 75 pre-meeting and 21 of 44 meeting voting statements, respectively. The methodology and definitions presented in this comprehensive football-specific extension should ensure more consistent study designs, data collection procedures and use of nomenclature in future epidemiological studies of football injuries and illnesses regardless of setting. It should facilitate comparisons across studies and pooling of data.
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| 18. |
- Waldén, Markus, 1975-, et al.
(författare)
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Influence of the COVID-19 Lockdown and Restart on the Injury Incidence and Injury Burden in Mens Professional Football Leagues in 2020 : The UEFA Elite Club Injury Study
- 2022
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Ingår i: Sports Medicine-Open. - Heidelberg, Germany : Springer. - 2199-1170 .- 2198-9761. ; 8:1
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Tidskriftsartikel (refereegranskat)abstract
- Background Studies on football and the coronavirus disease 2019 (COVID-19) have mainly focused on the lockdown consequences for player fitness, the resumption of football training, and how to safely restart the league play, but injury data are scarce.Objective To describe the injury incidence and injury burden in mens professional football teams during the pandemic year of 2020.Methods Nineteen teams in 12 countries prospectively registered data on player-exposure and time-loss injuries throughout 2020. All major football leagues were paused as a direct response to the pandemic in March 2020 and were thereafter completely cancelled or restarted after a lockdown interval of at least two months. Historical data from 43 teams in the same cohort during the five preceding years (2015-2019) were used as reference. Between-season and within-season comparisons were made for injury incidence (number of injuries per 1000 h) and injury burden (number of absence days per 1000 h) with 95% confidence intervals and interquartile ranges.Results There was no increased match injury incidence or injury burden following the restart in 2020 compared with other time periods of 2020 and the corresponding periods 2015-2019. There was an increased training injury incidence and injury burden immediately during the lockdown in 2020, and they remained elevated also following the restart, being higher in 2020 compared with 2015-2019, respectively. The injury characteristics during the first months of the new 2020/21 season (August/September-December) were similar between the five teams that cancelled their 2019/20 season in March 2020 and the 14 teams that restarted their season in May/June 2020.Conclusions There was no increased match injury incidence or injury burden following the COVID-19 lockdown and restart of the football season in 2020, but training injury incidence and injury burden were elevated and higher than in 2015-2019.
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| 19. |
- Windt, Johann, et al.
(författare)
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Does player unavailability affect football teams match physical outputs? A two-season study of the UEFA champions league
- 2018
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Ingår i: Journal of Science and Medicine in Sport. - : ELSEVIER SCI LTD. - 1440-2440 .- 1878-1861. ; 21:5, s. 525-532
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Tidskriftsartikel (refereegranskat)abstract
- Objectives: Player unavailability negatively affects team performance in elite football. However, whether player unavailability and its concomitant performance decrement is mediated by any changes in teams match physical outputs is unknown. We examined whether the number of players injured (i.e. unavailable for match selection) was associated with any changes in teams physical outputs. Design: Prospective cohort study. Methods: Between-team variation was calculated by correlating average team availability with average physical outputs. Within-team variation was quantified using linear mixed modelling, using physical outputs - total distance, sprint count (efforts over20 km/h), and percent of distance covered at high speeds (amp;gt;14 km/h) - as outcome variables, and player unavailability as the independent variable of interest. To control for other factors that may influence match physical outputs, stage (group stage/knockout), venue (home/away), score differential, ball possession (%), team ranking (UEFA Club Coefficient), and average team age were all included as covariates. Results: Teams average player unavailability was positively associated with the average number of sprints they performed in matches across two seasons. Multilevel models similarly demonstrated that having 4 unavailable players was associated with 20.8 more sprints during matches in 2015/2016, and with an estimated 0.60-0.77% increase in the proportion of total distance run above 14 km/h in both seasons. Player unavailability had a possibly positive and likely positive association with total match distances in the two respective seasons. Conclusions: Having more players injured and unavailable for match selection was associated with an increase in teams match physical outputs. (C) 2017 Sports Medicine Australia. Published by Elsevier Ltd. All rights reserved.
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