Merete Møller

• Thorarinsdottir, Solveig; Amundsen, Roar; Larmo, Arne Feilberg; Pedersen, Roar; Andersen, Thor Einar & Bahr, Roald [Show all 7 contributors for this article] (2024). Groin injuries in women's premier league football in Norway: A two-season prospective cohort study describing clinical and imaging characteristics. Scandinavian Journal of Medicine & Science in Sports. ISSN 0905-7188. 34(4). doi: 10.1111/sms.14611.
• Amundsen, Roar; Thorarinsdottir, Solveig; Larmo, A.; Pedersen, R.; Andersen, Thor Einar & Møller, Merete [Show all 7 contributors for this article] (2024). #ReadyToplay: hamstring injuries in women’s football–a two-season prospective cohort study in the Norwegian women’s premier league. Science and medicine in football. ISSN 2473-3938. doi: 10.1080/24733938.2024.2305389.
• Andersen, Thomas Rostgaard; Drevsfeldt, Andreas; Möller, Sören & Møller, Merete (2023). Injuries in male youth football: a one season prospective cohort study of 223 Danish elite players. Frontiers in Sports and Active Living. ISSN 2624-9367. 5. doi: 10.3389/fspor.2023.1250223. Full text in Research Archive
• Amundsen, Roar; Thorarinsdottir, Solveig; Clarsen, Benjamin Matthew; Andersen, Thor Einar; Møller, Merete & Bahr, Roald (2023). #ReadyToPlay: health problems in women's football-a two-season prospective cohort study in the Norwegian premier league. British Journal of Sports Medicine. ISSN 0306-3674. 58(1), p. 4–11. doi: 10.1136/bjsports-2023-107141. Show summary

  Objectives: To describe the prevalence, incidence and burden of all health problems in the Norwegian women’s premier league. Methods: During the 2020 and 2021 seasons, players in the Norwegian women’s premier league reported all health problems (sudden-onset injuries, gradual-onset injuries and illnesses) weekly, using the Oslo Sports Trauma Research Centre Questionnaire on Health Problems. Team medical staff diagnosed reported problems using the Sport Medicine Diagnostic Coding System. We calculated average weekly prevalence, incidence and burden of all health problems reported. Results: We included 294 players (age: 22±4 years) from 11 teams. Response rate to the weekly questionnaire was 79%. On average, 32% (95% CI: 31% to 33%) of the players reported at least one health problem at any time and 22% (95% CI: 21% to 23%) reported a substantial health problem negatively affecting their training volume or performance. The overall incidence was 10.7 health problems per 1000 hours of football exposure. Sudden-onset injuries were most severe (68% of the total time loss), followed by gradual-onset injuries (25%) and illnesses (8%). Thigh was the most common injury location (26%), while knee injuries were most severe, causing 42% of the total injury time loss. Anterior cruciate ligament (ACL) injuries alone caused 30% of the total injury time loss. Conclusion: One in five players had a health problem negatively affecting their training volume or performance at any time. Sudden-onset injuries represented the most burdensome health problem. Thigh injuries were most frequent, while knee injuries, ACL injuries especially, were most severe.

• Amundsen, Roar; Møller, Merete & Bahr, Roald (2023). Performing Nordic hamstring strength testing with additional weight affects the maximal eccentric force measured: do not compare apples to oranges. BMJ Open sport & exercise medicine. ISSN 2055-7647. 9(4). doi: 10.1136/bmjsem-2023-001699. Full text in Research Archive Show summary

  Background: Nordic hamstring test devices are commonly used to measure maximal eccentric hamstring force. The ability to control the final phase of the exercise has been adopted as a criterion to add weight when testing, without substantial evidence. We investigated if adding weight affected the maximal force measured, and if there were differences between players who could and could not control the final phase. Methods: Female (n=84) and male (n=56) football players performed a Nordic hamstring strength test with 0, 5 and 10 kg. We used visual inspection to assess the ability to control the final phase (approximately last 20°), as per previously published studies. Results: Maximal force was higher when tested with 5 kg (females: +8 N (2%), p<0.001; males: +18 N (4%), p<0.001) and 10 kg (females: +17 N (5%), p<0.001; males: +27 N (6%), p<0.001) compared with 0 kg. This was the case for both groups, those who could control the final phase (5 kg: +16 N (4%), p<0.001; 10 kg: +28 N (7%), p<0.001) and those who could not (5 kg: +9 N (3%), p<0.001; 10 kg: +15 N (4%), p<0.001). Conclusion: Both players who could and could not control the final phase of the Nordic hamstring test demonstrated higher maximal force when adding weight to testing. Therefore, this should not be used to decide if players should perform testing with or without weight. Either all participants or none should be tested with weight, and the same approach should be used both for pre-testing and post-testing.

• Holm, Pætur M.; Simonÿ, Charlotte; Brydegaard, Nadia K.; Høgsgaard, Ditte; Thorborg, Kristian & Møller, Merete [Show all 9 contributors for this article] (2023). An early care void: The injury experience and perceptions of treatment among knee-injured individuals and healthcare professionals – A qualitative interview study. Physical Therapy in Sport. ISSN 1466-853X. 64, p. 32–40. doi: 10.1016/j.ptsp.2023.08.006. Show summary

  Objectives: To better comprehend the initial injury experience and care requirements of knee-injured individuals, as well as healthcare professionals' interactions with early care. Design: Qualitative interviews. Setting: Public healthcare in Denmark. Participants: Ten individuals (6 women) with major knee injuries (6 anterior cruciate ligament (ACL) and meniscal tears, 2 isolated ACL tears, 1 isolated meniscal tear, 1 patella dislocation), aged 16–33 years (median 19 years), 1–26 months post-injury (median 3 months). Thirteen HCPs (5 physiotherapists, 5 orthopedic surgeons, 3 general practitioners). Main outcome measure: Semi-structured individual and focus group interviews, transcribed verbatim and with latent thematic analysis. Results: The three main themes were: 1) Emotional struggles in solitude – knee-injured individuals dealing with emotions alone due to limited HCP resources for emotional support. 2) Blurry beginning – knee-injured individuals finding initial care frustrating, a sentiment shared by HCPs. 3) A journey with no map – knee-injured individuals holding varied outcome expectations, while HCPs hesitate to discuss long-term knee health. Conclusion: Early care for knee-injured individuals is filled with worries and unmet emotional and information support needs. HCPs need more support and training to deliver timely and appropriate care.

• Pedersen, Julie Rønne; Møller, Merete; Storm, Louise Kamuk; Koes, Bart; Ntoumanis, Nikos & Thorlund, Jonas Bloch (2023). To rest or to compete? A 4-week cohort study of analgesic use and willingness to compete hurt in Danish youth elite athletes. Journal of Science and Medicine in Sport. ISSN 1440-2440. doi: 10.1016/j.jsams.2023.08.181. Full text in Research Archive Show summary

  Objectives: To assess the association between analgesic use and willingness to compete hurt (WCH) in Danish youth elite athletes, and to explore factors associated with such willingness. Design: 4-week prospective cohort study. Methods: 592 Danish youth elite athletes (15–20 years) completed a baseline questionnaire assessing demographic information, sport history, and WCH, and provided weekly reports on analgesic use for 4 weeks via text messages. Analgesic use was categorized as no use (0 weeks) or use across 1, 2, 3, or 4 weeks, and as the total number of days with analgesic use. Multinomial logistic regression and zero-inflated negative binomial regression analyses estimated the association between analgesic use and WCH. Linear backward stepwise regression analysis was used to identify factors associated with WCH. Results: Overall, risk of analgesic use increased significantly with increasing WCH scores (relative risk ratios ranging from 1.06 (95% CI 1.0 to 1.12%) to 1.34% (95% CI 1.15 to 1.57)). The incidence rate of analgesic use increased significantly with increasing WCH scores (incidence rate ratio 1.09 (95% CI 1.04 to 1.14)). Associations between the investigated possible antecedent factors and WCH were weak and not considered practically important (R2 = 0.05 or lower). Conclusions: Higher WCH scores were associated with increasing risk of analgesic use, irrespective of the underlying reason for the use, in Danish youth elite athletes, suggesting that analgesics may be an ingrained part of a sport-specific culture of risk acceptance. Future studies should include measures of culture, norms, and social interaction to better explain the variance in WCH.

• Amundsen, Roar; Thorarinsdottir, Solveig; Larmo, Arne; Pedersen, R.; Andersen, Thor Einar & Møller, Merete [Show all 7 contributors for this article] (2023). Hamstring injuries in the Norwegian women's Premier League. In Della Villa, F & Susta, D (Ed.), Football Medicine - The Pursuit of Excellence - Abstract book. Calzetti Maricci editori. ISSN 9788860286871. p. 210–211.
• Amundsen, Roar; Sæther Heimland, Janita; Thorarinsdottir, Solveig; Møller, Merete & Bahr, Roald (2022). Effects of High and Low Training Volume with the Nordic Hamstring Exercise on Hamstring Strength, Jump Height, and Sprint Performance in Female Football Players: A Randomised Trial. Translational Sports Medicine (TSM). ISSN 2573-8488. 2022. doi: 10.1155/2022/7133928. Full text in Research Archive Show summary

  The evidence-based hamstring strengthening programme for prevention of hamstring injuries is not adopted by football teams because of its high training volume. This study on female football players investigated if high-volume training with the Nordic hamstring exercise is more effective on hamstring strength, jump height, and sprint performance than low-volume training. We also examined the time course of changes in muscle strength during the intervention period. Forty-five female football players were randomised to a high- (21 sessions, 538 total reps) or low-volume group (10 sessions, 144 total reps) and performed an 8-week training intervention with the Nordic hamstring exercise during the preseason. We tested hamstring strength (maximal eccentric force with NordBord and maximal eccentric torque with isokinetic dynamometer), jump height, and 40 m sprint before and after the intervention. The NordBord test was also performed during training weeks 4 and 6. Both groups increased maximal eccentric force (high-volume: 29 N (10%), 95% CI: 19–38 N, , low-volume: 37 N (13%), 95% CI: 18–55 N, ), but there were no between-group differences (). Maximal eccentric torque, jump height, and sprint performance did not change. Maximal eccentric force increased from the pretest to week 6 (20 N (7%), 95% CI: 8 to 31 N, ), but not week 4 (8 N (3%), 95% CI: −2 to 18 N, ). High training volume with the Nordic hamstrings exercise did not lead to greater adaptations in strength, jump height, or speed than a low-volume programme. Players in both groups had to train for at least 6 weeks to improve maximal eccentric force significantly.

• Ageberg, Eva; Brodin, Eva M; Linnéll, Jennie; Moesch, Karin; Donaldson, Alex & Adébo, Emme [Show all 15 contributors for this article] (2022). Cocreating injury prevention training for youth team handball: bridging theory and practice. BMJ Open sport & exercise medicine. ISSN 2055-7647. 8(2). doi: 10.1136/bmjsem-2021-001263. Full text in Research Archive Show summary

  Although it is advocated that end-users are engaged in developing evidence-based injury prevention training to enhance the implementation, this rarely happens. The ‘Implementing injury Prevention training ROutines in TEams and Clubs in youth Team handball (I-PROTECT)’ uses an ecological participatory design incorporating the perspectives of multiple stakeholders throughout the project. Within the I-PROTECT project, the current study aimed to describe the development of holistic injury prevention training specifically for youth handball players through using knowledge from both end-users (coaches and players) and researchers/handball experts. Employing action evaluation within participatory action research, the cyclical development process included three phases: research team preparation, handball expert-based preparation and end-user evaluation to develop injury prevention training incorporating both physical and psychological perspectives. To grow the knowledge of the interdisciplinary research team, rethinking was conducted within and between phases based on participants’ contributions. Researchers and end-users cocreated examples of handball-specific exercises, including injury prevention physical principles (movement technique for upper and lower extremities, respectively, and muscle strength) combined with psychological aspects (increase end-user motivation, task focus and body awareness) to integrate into warm-up and skills training within handball practice. A cyclical development process that engaged researchers/handball experts and end-users to cocreate evidence-based, theory-informed and context-specific injury prevention training specifically for youth handball players generated a first pilot version of exercises including physical principles combined with psychological aspects to be integrated within handball practice.

• Schwank, Ariane; Blazey, Paul; Asker, Martin; Møller, Merete; Hägglund, Martin & Gard, Suzanne [Show all 13 contributors for this article] (2022). 2022 Bern Consensus Statement on Shoulder Injury Prevention, Rehabilitation, and Return to Sport for Athletes at All Participation Levels. Journal of Orthopaedic and Sports Physical Therapy. ISSN 0190-6011. 52(1), p. 11–28. doi: 10.2519/JOSPT.2022.10952.
• Pedersen, Alex Young; Thomsen, Morten Brendsgaard Randers; Luteberget, Live & Møller, Merete (2021). Validity of Session Rating of Perceived Exertion for Measuring Training Load in Youth Team Handball Players. Journal of Strength and Conditioning Research. ISSN 1064-8011. doi: 10.1519/JSC.0000000000004202. Full text in Research Archive Show summary

  Session rating of perceived exertion (sRPE) is a subjective self-reported measure of training load and is a popular method in several different team sports. This study aimed to investigate the validity of sRPE, by correlating sRPE load (sRPE × minutes of training) and heart rate (HR) expressed as Edwards Summated Heart Rate Zones (SHRZ) and PlayerLoad among Danish youth team handball players. Second, the study aimed to investigate sRPE load's ability to descriptively differentiate between a low and a high training load category. A comparative cross-sectional study was conducted in the in-season period. Fourteen training sessions were measured from 6 teams, in which PlayerLoad, Edwards SHRZ, and sRPE load were measured for the training session and collected from 47 subjects (23 males and 24 females). Pearson's product-moment correlation coefficients were calculated between sRPE load and Edwards SHRZ and PlayerLoad. Furthermore, a high and a low load category were made from PlayerLoad or Edwards SHRZ to investigate sRPE load's ability to discriminate between high and low objective load. Large correlations between sRPE load and Edwards SHRZ (0.52 [95% CI 0.27:0.70]) and between sRPE load and PlayerLoad (0.67 [95% CI 0.47:0.80]) were observed. Our findings further indicate that sRPE load can differentiate between a high and a low training load category in both Edwards SHRZ and PlayerLoad. Our results show that sRPE load reflects both internal and external load during team handball training sessions and seems to discriminate between high- and low-intensity training sessions. These results support the validity of sRPE load for measuring training load in young team handball players.

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• Møller, Merete (2024). Happy project - injury prevention in youth community sport.
• Myklebust, Grethe; Munkvold, Emilie; Hägglund, Martin; Bahr, Roald; Møller, Merete & Bjørndal, Christian Thue [Show all 7 contributors for this article] (2024). Why does it work? Proposed mechanisms of effect in injury prevention programs in football and handball: a scoping review of 84 studies.
• Myklebust, Grethe & Møller, Merete (2024). 87 international championship medals and 25 years later – present state of injury prevention in handball 2024 with future perspectives.
• Bjørndal, Christian Thue; Myklebust, Grethe; Møller, Merete & Grindem, Hege (2024). Unveiling the significance of sociocultural dynamics in youth sport injury research: a comprehensive narrative review.
• Sjølie, Emilie Scholten; McKay, Carly; Gjesdal, Siv; Grindem, Hege; Myklebust, Grethe & Bjørndal, Christian Thue [Show all 7 contributors for this article] (2024). Targeting injury prevention behavior in youth handball and football: perspectives from 528 players and 337 coaches - a cross sectional study.
• Sjølie, Emilie Scholten; McKay, Carly; Gjesdal, Siv; Grindem, Hege; Myklebust, Grethe & Bjørndal, Christian Thue [Show all 7 contributors for this article] (2024). Injury prevention behavior in youth handball and football: perspectives from 528 players and 337 coaches - a cross sectional study.
• Sjølie, Emilie Scholten; Møller, Merete; Grindem, Hege; Myklebust, Grethe & Bjørndal, Christian Thue (2023). Injury prevention and injury prevention behavior in youth handball and football.
• Hausken-Sutter, Solveig Elisabeth Sand; Bjørndal, Christian Thue; Myklebust, Grethe; Møller, Merete & Grindem, Hege (2023). Gjennomførbarhetsstudie - metode og resultat.
• Bjørndal, Christian Thue; Myklebust, Grethe; Møller, Merete & Grindem, Hege (2023). Gjennomførbarhetsstudie - metode og resultat.
• Møller, Merete; Grindem, Hege; Bjørndal, Christian Thue & Myklebust, Grethe (2023). Injury prevention and injury prevention behavior in youth handball and football.
• Moen, Christian; Myklebust, Grethe; Munkvold, Emilie; Hägglund, Martin; Bahr, Roald & Møller, Merete [Show all 8 contributors for this article] (2023). Hvorfor virker de? Effektmekanismer i skadeforebyggende programmer i fotball og håndball.
• Moseid, Christine Holm; Myklebust, Grethe & Møller, Merete (2023). Den kvinnelige idrettsutøveren. Trening, helse og prestasjon. In Sandbakk, Øyvind Bucher; Solli, Guro Strøm & Staff, Hanne Cesilie (Ed.), Den kvinnelige idrettsutøveren. Fagbokforlaget. ISSN 9788245036930. p. 93–102.
• Thorarinsdottir, Solveig; Amundsen, Roar; Larmo, Arne Feilberg; Pedersen, Roar; Andersen, Thor Einar & Bahr, Roald [Show all 7 contributors for this article] (2023). Groin injuries in womens premier league football in Norway.
• Thorarinsdottir, Solveig; Amundsen, Roar; Clarsen, Benjamin Matthew; Andersen, Thor Einar; Møller, Merete & Bahr, Roald (2023). #ReadyToPlay. Health problems in womens premier leage football.
• Sjølie, Emilie Scholten; McKay, Carly; Gjesdal, Siv; Grindem, Hege; Myklebust, Grethe & Bjørndal, Christian Thue [Show all 7 contributors for this article] (2023). Similar injury prevention behavior in youth handball and football: a cross-sectional study of 865 coaches and players.
• Amundsen, Roar; Thorarinsdottir, Solveig; Larmo, Arne; Pedersen, R.; Andersen, Thor Einar & Møller, Merete [Show all 7 contributors for this article] (2023). Hamstring injuries in the Norwegian women's Premier League.
• Thorarinsdottir, Solveig; Amundsen, Roar; Bahr, Roald; Andersen, Thor Einar; Larmo, Arne & Pedersen, R. [Show all 7 contributors for this article] (2023). Groin injuries in women's Premier League football in Norway. In Della Villa, F & Susta, D (Ed.), Football Medicine - The Pursuit of Excellence - Abstract book. Calzetti Maricci editori. ISSN 9788860286871.
• Thorarinsdottir, Solveig; Amundsen, Roar; Bahr, Roald; Andersen, Thor Einar; Larmo, Arne & Pedersen, R. [Show all 7 contributors for this article] (2023). Groin injuries in women's Premier League football in Norway.
• Thorarinsdottir, Solveig; Amundsen, Roar; Clarsen, Benjamin Matthew; Andersen, Thor Einar; Møller, Merete & Bahr, Roald (2022). INJURIES AND ILLNESS IN ELITE WOMEN’S FOTBALL IN NORWAY – A TWO-YEAR PROSPECTIVE COHORT STUDY .
• Hausken, Solveig Elisabeth Sand; Bjørndal, Christian Thue; Myklebust, Grethe; Møller, Merete & Grindem, Hege (2022). Sosiale og kulturelle forhold kan påvirke idrettsskader.
• Moen, Christian; Myklebust, Grethe; Hagglund, Martin; Bahr, Roald; Møller, Merete & Bjørndal, Christian Thue [Show all 7 contributors for this article] (2022). Biomedisinsk perspektiv på skadeforebygging.
• Sjølie, Emilie Scholten; Gjesdal, Siv; McKay, Carly; Grindem, Hege; Myklebust, Grethe & Bjørndal, Christian Thue [Show all 7 contributors for this article] (2022). Holdninger og atferd: skader og skadeforebygging.
• Amundsen, Roar; Thorarinsdottir, Solveig; Clarsen, Benjamin Matthew; Andersen, Thor Einar; Møller, Merete & Bahr, Roald (2022). Health problems in the elite women`s football league in Norway - a prospective cohort study.
• Amundsen, Roar; Thorarinsdottir, Solveig; Pedersen, Roar; Larmo, Arne; Andersen, Thor Einar & Møller, Merete [Show all 7 contributors for this article] (2022). Hamstringsskader i elite kvinnefotball.
• Liaghat, Behnam; Bencke, Jesper; Zebis, Mette K.; Sørensen, Henrik; Myklebust, Grethe & Wedderkopp, Niels [Show all 7 contributors for this article] (2021). Shoulder rotation strength changes from preseason to midseason - a cohort study of 292 youth elite handball players without shoulder problems. British Journal of Sports Medicine. ISSN 0306-3674. 55. doi: 10.1136/bjsports-2021-IOC.73.
• Liaghat, Behnam; Bencke, Jesper; Zebis, Mette K.; Sørensen, Henrik; Myklebust, Grethe & Wedderkopp, Niels [Show all 8 contributors for this article] (2021). Shoulder rotation strength changes from preseason to midseason: a cohort study of 292 youth elite handball players without shoulder problems.
• Møller, Merete (2021). The role of load management in injury prevention in handball.
• Møller, Merete (2021). Injury prevention programmes are bargains, but very few are buying them: Why?
• Møller, Merete (2021). The etiology of throwing injury in an overhead throwing athlete: What are the contributing factors? .
• Møller, Merete (2019). How to manage training load to prevent muscle injuries: lessons from beyond football.
• Møller, Merete & Kittilsen, Silje (2022). Skadeforekomst i menstruasjonssyklusen og ved bruk av hormonelt prevensjonsmiddel blant elite kvinnelige fotballspillere - en prospektiv kohortstudie . Norges idrettshøgskole.

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