Physical Therapy in Sport最新文献

{"title":"Is there a relationship between knee crepitus with quadriceps muscle thickness and strength in individuals with patellofemoral pain? A cross-sectional study","authors":"Amanda Jakovacz ,&nbsp;Fernanda Serighelli ,&nbsp;Lauana Maria Miola ,&nbsp;Guilherme de Conto Kuhn ,&nbsp;Carlos Eduardo de Albuquerque ,&nbsp;Alberito Rodrigo de Carvalho ,&nbsp;Danilo De Oliveira Silva","doi":"10.1016/j.ptsp.2024.08.001","DOIUrl":"10.1016/j.ptsp.2024.08.001","url":null,"abstract":"<div><h3>Objective</h3><p>To explore the relationship between knee crepitus, quadriceps muscle thickness and isometric strength in individuals with patellofemoral pain (PFP).</p></div><div><h3>Design</h3><p>Cross-sectional.</p></div><div><h3>Participants</h3><p>Individuals with PFP.</p></div><div><h3>Main outcome measures</h3><p>Participants with PFP underwent assessments for presence, frequency and severity of knee crepitus. Real-time ultrasound images of the quadriceps muscles (rectus femoris, vastus medialis and lateralis) at rest and during contraction were obtained, muscle thickness was measured in both conditions. Maximal voluntary isometric contraction tests were performed to measure knee extensor strength. The relationship between knee crepitus and quadriceps muscle thickness and knee extensor strength was explored using logistic and linear regressions.</p></div><div><h3>Results</h3><p>Sixty individuals with PFP were included (age: 24; 60% women; 38% with crepitus). Knee crepitus severity was related to rectus femoris and vastus medialis thickness during rest (R² = 0.19 and 0.09, respectively) and contraction (R² = 0.16 and 0.07, respectively) and with vastus lateralis during contraction (R2 = 0.08). Isometric knee extensor strength was not related to knee crepitus presence, frequency, or severity.</p></div><div><h3>Conclusion</h3><p>Higher severity of knee crepitus is related to lower quadriceps muscle thickness in individuals with PFP. There is no relationship between the presence and frequency of knee crepitus with quadriceps muscle thickness or knee extensor strength.</p></div>","PeriodicalId":49698,"journal":{"name":"Physical Therapy in Sport","volume":"69 ","pages":"Pages 76-83"},"PeriodicalIF":2.2,"publicationDate":"2024-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1466853X24000798/pdfft?md5=1951b691bd7cfd926a65e6babdb4670e&pid=1-s2.0-S1466853X24000798-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141899290","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Understanding musculoskeletal disorders in dancers: The role of lumbopelvic muscles and movement competency","authors":"Justine Benoit-Piau ,&nbsp;Nathaly Gaudreault ,&nbsp;Hugo Massé-Alarie ,&nbsp;Christine Guptill ,&nbsp;Sylvie Fortin ,&nbsp;Mélanie Morin","doi":"10.1016/j.ptsp.2024.07.006","DOIUrl":"10.1016/j.ptsp.2024.07.006","url":null,"abstract":"<div><h3>Objective</h3><p>To investigate whether transversus abdominis activation (TrA), hip strength, and movement competency are associated with the incidence of musculoskeletal disorder episodes (MDEs) in dancers when controlling for confounding variables. The secondary objectives were to determine if there were differences between professional and preprofessional dancers for the aforementioned factors, as well as to determine if there were differences in TrA activation and hip strength between the dominant and non-dominant sides.</p></div><div><h3>Design</h3><p>Prospective cohort study.</p></div><div><h3>Methods</h3><p>118 dancers were recruited. The independent variables were collected at the beginning of the dance season: 1) TrA activation, 2) hip strength, and 3) movement competency. To assess the development of MDEs, a weekly electronic diary was used over a 38-week period. MDEs were compiled for each dancer's whole body and subdivided into total musculoskeletal disorder episodes (all body parts) and lower quadrant musculoskeletal disorder episodes (lower limb and lower back).</p></div><div><h3>Results</h3><p>Lower TrA, as well as higher hip abductor and external rotator strength, were associated with a lower incidence of MDEs. TrA activation (β = 0.260, p = 0.023) and hip external rotator strength (β = −0.537, p = 0.002) could significantly explain 25.4% of the variance of total MDEs, as well as 20.9% of the variance of lower quadrant musculoskeletal disorder episodes (β = 0.272, p = 0.016; β = −0.459, p = 0.011). No significant associations were found between movement competency and MDEs.</p></div><div><h3>Conclusions</h3><p>Higher hip strength could be a protective factor for MDEs among dancers. Further studies are needed to better understand the involvement of the transversus abdominis in MDEs.</p></div>","PeriodicalId":49698,"journal":{"name":"Physical Therapy in Sport","volume":"69 ","pages":"Pages 91-96"},"PeriodicalIF":2.2,"publicationDate":"2024-08-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1466853X24000774/pdfft?md5=691559885106afbdb3f37c14d9f66702&pid=1-s2.0-S1466853X24000774-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141908752","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comparing reach distance between the Y-Balance Test-Lower Quarter and Star Excursion Balance Test: Are practitioners using the correct protocol?","authors":"James G. Bodden,&nbsp;Robert A. Needham,&nbsp;Nachiappan Chockalingam","doi":"10.1016/j.ptsp.2024.07.007","DOIUrl":"10.1016/j.ptsp.2024.07.007","url":null,"abstract":"<div><h3>Objectives</h3><p>To compare reach distances between the YBT-LQ and SEBT using the correct protocols as outlined by the developers. This will provide an accurate insight on the actual magnitude differences in reach distance between the movement screen tests and will safeguard practitioners on the subsequent use of these outcomes to inform clinical decision making.</p></div><div><h3>Design</h3><p>Observational.</p></div><div><h3>Setting</h3><p>Laboratory.</p></div><div><h3>Participants</h3><p>Participants included sixteen healthy female subjects from the university and amateur sports teams.</p></div><div><h3>Main outcome</h3><p>Reach distances in the anterior direction (ANT), posterior medial (PM) and posterior lateral (PL) between participants on the YBT-LQ and SEBT.</p></div><div><h3>Results</h3><p>The principal findings highlighted that a statistically significantly greater reach distance on the left and right side for the YBT-LQ compared to the SEBT in the ANT, PM, and PL directions (p &lt; 0.0005).</p></div><div><h3>Conclusion</h3><p>The results of this study suggest that the YBT-LQ and SEBT are not comparable tests due to the differences in reach distance and methodological differences. Therefore, previous, and future research using the YBT-LQ and SEBT cannot be used interchangeably. Not following developed guidelines questions the applicability of the findings of reach distance scores to infer on performance and assessment of injury risk.</p></div>","PeriodicalId":49698,"journal":{"name":"Physical Therapy in Sport","volume":"69 ","pages":"Pages 84-90"},"PeriodicalIF":2.2,"publicationDate":"2024-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1466853X24000786/pdfft?md5=41ccb0dc4224c253005bc907368427b9&pid=1-s2.0-S1466853X24000786-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141847522","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Landing error scoring system: A scoping review about variants, reference values and differences according to sex and sport","authors":"Maximiliano Ezequiel Arlettaz ,&nbsp;Lucas Nahuel Dorsch ,&nbsp;Paola Andrea Lucia Catalfamo-Formento","doi":"10.1016/j.ptsp.2024.07.005","DOIUrl":"10.1016/j.ptsp.2024.07.005","url":null,"abstract":"<div><h3>Objective</h3><p>The Landing Error Scoring System (LESS) is a movement analysis tool proposed to identify the risk of anterior cruciate ligament injuries, very useful for injury prevention. The aim of this study is to review the variants of the LESS, their normative scores and the differences according to sex and sport practiced.</p></div><div><h3>Methods</h3><p>PubMed, Scopus and ScienceDirect databases were searched from inception to October 19, 2023. Studies were eligible if the objective was finding normative or reference scores for the LESS, analyze the differences between sexes or sports, or used some variant of the test. Results were limited to available full-text articles published in English in peer-reviewed journals.</p></div><div><h3>Results</h3><p>Of the 360 articles identified, 20 were included for a full analysis (18,093 participants, age = 8–30 years, males = 70.6%). The military population was the most frequently analyzed (7 studies, n = 16,603). Results showed six variants of the LESS and average values ranged from 2.56 to 7.1. Males and females showed different pattern landing with errors in different planes.</p></div><div><h3>Conclusions</h3><p>Our findings highlight the need for more field studies on LESS reference scores, particularly for females and basketball or hockey players. Further research is required before conducting a systematic review and meta-analysis.</p></div>","PeriodicalId":49698,"journal":{"name":"Physical Therapy in Sport","volume":"69 ","pages":"Pages 67-75"},"PeriodicalIF":2.2,"publicationDate":"2024-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141846865","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Reliability and validity of belt-stabilized and tension dynamometry for assessing hip strength and power in uninjured adults","authors":"Natanael P. Batista ,&nbsp;Zuleiha I. Rachid ,&nbsp;Danilo De Oliveira Silva ,&nbsp;Neal R. Glaviano ,&nbsp;Grant E. Norte ,&nbsp;David M. Bazett-Jones","doi":"10.1016/j.ptsp.2024.07.004","DOIUrl":"10.1016/j.ptsp.2024.07.004","url":null,"abstract":"<div><h3>Objectives</h3><p>To investigate the intra-rater reliability and validity of belt-stabilized and tension dynamometry to assess hip muscle strength and power.</p></div><div><h3>Design</h3><p>Repeated measures.</p></div><div><h3>Setting</h3><p>Biomechanics laboratory.</p></div><div><h3>Participants</h3><p>Seventeen uninjured adults (age = 22.0 ± 2.3y; 13 females).</p></div><div><h3>Main outcomes measures</h3><p>Peak torque (strength) and rate of torque development (RTD; power) were measured for hip abduction, internal rotation, external rotation and extension using an isokinetic dynamometer, and belt-stabilized and tension dynamometry.</p></div><div><h3>Results</h3><p>For peak torque assessment, belt-stabilized and tension dynamometry showed good (Intraclass Correlation Coefficient [ICC] = 0.848–0.899) and good-to-excellent (ICC = 0.848–0.942) reliability, respectively. For RTD, belt-stabilized dynamometry showed fair reliability for abduction (ICC = 0.524) and good reliability for hip internal rotation, external rotation, and extension (ICC = 0.702–0.899). Tension dynamometry showed good reliability for all motions when measuring RTD (ICC = 0.737–0.897). Compared to isokinetic dynamometry, belt-stabilized and tension dynamometry showed good-to-excellent correlations for peak torque assessment (r = 0.503–0.870), and fair-to-good correlations for RTD (r = 0.438–0.674). Bland-Altman analysis showed that measures from belt-stabilized and tension dynamometry had clinically meaningful disagreement with isokinetic dynamometry.</p></div><div><h3>Conclusion</h3><p>Tension dynamometry is reliable for assessing hip strength and power in all assessed motions. Belt-stabilized dynamometry is reliable for assessing internal rotation, external rotation, and extension. Validity of both methods is questionable, considering the lack of agreement with isokinetic dynamometry.</p></div>","PeriodicalId":49698,"journal":{"name":"Physical Therapy in Sport","volume":"69 ","pages":"Pages 59-66"},"PeriodicalIF":2.2,"publicationDate":"2024-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1466853X24000750/pdfft?md5=a990bc457608b8b2ec1f74052dbe1781&pid=1-s2.0-S1466853X24000750-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141780563","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effectiveness of psychological intervention following anterior cruciate ligament reconstruction: A systematic review and meta-analysis","authors":"Yuichi Isaji ,&nbsp;Shota Uchino ,&nbsp;Ryuta Inada ,&nbsp;Hiroki Saito","doi":"10.1016/j.ptsp.2024.07.003","DOIUrl":"10.1016/j.ptsp.2024.07.003","url":null,"abstract":"<div><h3>Objective</h3><p>To determine the effectiveness of psychological interventions in postoperative anterior cruciate ligament reconstruction (ACLR) compared to standard rehabilitation.</p></div><div><h3>Methods</h3><p>The databases searched were PubMed, MEDLINE, Cochrane Central Register of Controlled Trials, PEDro, Cumulative Index to Nursing &amp; Allied Health Literature, and EMBASE were searched from each database inception to May 2023 for published studies. The methodological quality was assessed with the Cochrane Risk of Bias Assessment (RoB 2.0) tool. The evidence quality was evaluated using the Grading of Recommendations, Assessment, Development, and Evaluation approach.</p></div><div><h3>Results</h3><p>Six papers were included in the meta-analysis. Psychological intervention significantly improved Tampa Scale for Kinesiophobia at 3 months (Standard Mean Difference [SMD], −0.51. 95% Confidence Interval [CI], −0.85 to −0.17) and pain (Knee Injury and Osteoarthritis Outcome Score for Pain, Numeric Rating Scale, Visual Analog Scale) at 3 months (SMD, −0.92. 95%CI, −1.69 to −0.15) and at 6 months following ACLR (MD, −1.25. 95%CI, −1.82 to −0.68) when compared with the standard rehabilitation, according to very low-quality data. Self-efficacy and knee strength did not show significant differences.</p></div><div><h3>Conclusion</h3><p>Very low-quality evidence suggests that psychological intervention following ACLR yields better short-term outcomes compared to standard rehabilitation, with uncertainty about its clinically significant benefits over standard rehabilitation.</p></div>","PeriodicalId":49698,"journal":{"name":"Physical Therapy in Sport","volume":"69 ","pages":"Pages 40-50"},"PeriodicalIF":2.2,"publicationDate":"2024-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141636837","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Cervical spine proprioception and vestibular/oculomotor function: An observational study comparing young adults with and without a concussion history","authors":"Katherine L. Smulligan ,&nbsp;Patrick Carry ,&nbsp;Andrew C. Smith ,&nbsp;Carrie Esopenko ,&nbsp;Christine M. Baugh ,&nbsp;Julie C. Wilson ,&nbsp;David R. Howell","doi":"10.1016/j.ptsp.2024.07.002","DOIUrl":"10.1016/j.ptsp.2024.07.002","url":null,"abstract":"<div><h3>Objective</h3><p>To investigate dizziness, vestibular/oculomotor symptoms, and cervical spine proprioception among adults with/without a concussion history.</p></div><div><h3>Methods</h3><p>Adults ages 18–40 years with/without a concussion history completed: dizziness handicap inventory (DHI), visio-vestibular exam (VVE), and head repositioning accuracy (HRA, assesses cervical spine proprioception). Linear regression models were used to assess relationships between (1) concussion/no concussion history group and VVE, HRA, and DHI, and (2) DHI with HRA and VVE for the concussion history group.</p></div><div><h3>Results</h3><p>We enrolled 42 participants with concussion history (age = 26.5 <span><math><mrow><mo>±</mo></mrow></math></span> 4.5 years, 79% female, mean = 1.4<span><math><mrow><mo>±</mo></mrow></math></span> 0.8 years post-concussion) and 46 without (age = 27.0<span><math><mrow><mo>±</mo></mrow></math></span> 3.8 years, 74% female). Concussion history was associated with worse HRA (<span><math><mrow><mi>β</mi></mrow></math></span> = 1.23, 95% confidence interval [CI]: 0.77, 1.68; p &lt; 0.001), more positive VVE subtests (<span><math><mrow><mi>β</mi></mrow></math></span> = 3.01, 95%CI: 2.32, 3.70; p &lt; 0.001), and higher DHI scores (<span><math><mrow><mi>β</mi></mrow></math></span> = 9.79, 95%CI: 6.27, 13.32; p &lt; 0.001) after covariate adjustment. For the concussion history group, number of positive VVE subtests was significantly associated with DHI score (<span><math><mrow><mi>β</mi></mrow></math></span> = 3.78, 95%CI: 2.30, 5.26; p &lt; 0.001) after covariate adjustment, while HRA error was not (<span><math><mrow><mi>β</mi></mrow></math></span> = 1.10, 95%CI: −2.32, 4.51; p = 0.52).</p></div><div><h3>Conclusions</h3><p>Vestibular/oculomotor symptom provocation and cervical spine proprioception impairments may persist chronically (i.e., 3 years) after concussion. Assessing dizziness, vestibular/oculomotor and cervical spine function after concussion may inform patient-specific treatments to address ongoing dysfunction.</p></div>","PeriodicalId":49698,"journal":{"name":"Physical Therapy in Sport","volume":"69 ","pages":"Pages 33-39"},"PeriodicalIF":2.2,"publicationDate":"2024-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141623066","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The effect of surface on knee landing mechanics and muscle activity during a single-leg landing task in recreationally active females","authors":"Mark C. Richardson ,&nbsp;Paul Chesterton ,&nbsp;Abigail Taylor ,&nbsp;William Evans","doi":"10.1016/j.ptsp.2024.07.001","DOIUrl":"https://doi.org/10.1016/j.ptsp.2024.07.001","url":null,"abstract":"<div><h3>Objective</h3><p>Investigate the effect of surface on frontal plane knee angle, knee moment and muscle activity.</p></div><div><h3>Design</h3><p>Randomised cross over.</p></div><div><h3>Setting</h3><p>University Laboratory.</p></div><div><h3>Methods</h3><p>Twenty females performed single-leg hop-landings onto sand, grass and firm surfaces. Kinematic, kinetic and muscle activity data were obtained. Compatibility curves were used to visualise parameter estimates alongside <em>P</em>- values, and S-value transforms.</p></div><div><h3>Results</h3><p>Knee angle for firm-sand (mean difference <span><math><mrow><mover><mrow><mo>(</mo><mi>d</mi><mo>)</mo></mrow><mo>‾</mo></mover></mrow></math></span> = −2.2°; 95% compatibility interval (CI): −4.6 to 0.28, p = 0.083, s = 3.6) and firm-grass (<span><math><mrow><mover><mrow><mi>d</mi><mspace></mspace></mrow><mo>‾</mo></mover></mrow></math></span> = −1.9; 95% CI: −4.3 to 0.5, p = 0.125, S = 3) yielded &lt;4 bits of reputational information against the null hypothesis (H). 5 bits (p = 0.025) of information against H were observed for knee moment between firm-sand (<span><math><mrow><mover><mrow><mi>d</mi><mspace></mspace></mrow><mo>‾</mo></mover></mrow></math></span> = 0.17 N m/kg-1. m-1; 95% CI: 0.02 to 0.31) with similar effects for firm-grass (<span><math><mrow><mover><mrow><mi>d</mi><mspace></mspace></mrow><mo>‾</mo></mover></mrow></math></span> = 0.14 N m/kg-1. m-1; 95% CI: −0.02 to 0.29, p = 0.055, S = 4). Muscle activity across surfaces ranged from almost no (S = 1) reputational evidence against H (Quadriceps and Hamstrings) to 10–13 ‘bits’ against H for lateral gastrocnemius (lower on sand).</p></div><div><h3>Conclusions</h3><p>Our study provides valuable information for practitioners of the observed effect sizes for lower-limb landing mechanics across surfaces in asymptomatic females.</p></div>","PeriodicalId":49698,"journal":{"name":"Physical Therapy in Sport","volume":"69 ","pages":"Pages 22-32"},"PeriodicalIF":2.2,"publicationDate":"2024-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1466853X24000725/pdfft?md5=3bcc8d9dc677a106486073d98a3fe5de&pid=1-s2.0-S1466853X24000725-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141593806","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Normal hip strength and range of motion values in youth and adult female national football teams: Data from 504 assessments","authors":"Willem M.P. Heijboer ,&nbsp;Karin M. Thijs ,&nbsp;Adam Weir ,&nbsp;Andreas Serner ,&nbsp;Johannes L. Tol ,&nbsp;Edwin A. Goedhart ,&nbsp;Floor P. Groot","doi":"10.1016/j.ptsp.2024.06.005","DOIUrl":"10.1016/j.ptsp.2024.06.005","url":null,"abstract":"<div><h3>Objectives</h3><p>To determine normal hip adduction- and abduction strength and range of motion (ROM) values for youth and adult female national team football players, and evaluate if increasing age, playing position and leg dominance were associated with these strength and ROM values.</p></div><div><h3>Design</h3><p>Cohort study.</p></div><div><h3>Setting</h3><p>National football center.</p></div><div><h3>Participants</h3><p>344 unique asymptomatic female football players.</p></div><div><h3>Main outcome measures</h3><p>Hip internal/external rotation (°), Bent Knee Fall Out test (cm), hip adduction/abduction strength(N) and ratio, and normalised hip adduction/abduction torque (Nm/kg).</p></div><div><h3>Results</h3><p>A total of 504 assessments were performed. A total of 107 players underwent two (n = 67), three (n = 27) or four (n = 13) assessments. Mean peak hip adduction strength was 39% greater in 20 + Y old players 170 (±53 N) than in 13Y old players 122 (±28 N). Normalised hip adduction torque was 9% greater: 2.5 (±0.8Nm/kg) versus 2.3 (±0.5Nm/kg). A positive association between age and all strength measurements was found, while a negative association between age and hip external rotation and total hip rotation was found. No clinically relevant differences were found for the associations between playing position, leg dominance and hip strength- and ROM values.</p></div><div><h3>Conclusion</h3><p>Normal values for hip strength and range of motion in youth and adult female national football players are presented that can be used as clinical reference values.</p></div>","PeriodicalId":49698,"journal":{"name":"Physical Therapy in Sport","volume":"69 ","pages":"Pages 51-58"},"PeriodicalIF":2.2,"publicationDate":"2024-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1466853X24000671/pdfft?md5=e5f4aeadaf0ff4431a45bfc9c8c7e332&pid=1-s2.0-S1466853X24000671-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141691143","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Can tests of physical fitness predict traumatic knee injury in youth female athletes? A prospective cohort study","authors":"Sofia Ryman Augustsson ,&nbsp;Timmy Gustafsson ,&nbsp;Eva Ageberg","doi":"10.1016/j.ptsp.2024.06.007","DOIUrl":"10.1016/j.ptsp.2024.06.007","url":null,"abstract":"<div><h3>Objectives</h3><p>To compile a battery of test including various aspects of physical fitness that could be used on the field and to assess whether any of these tests are associated with future traumatic knee injuries in youth female team sports athletes.</p></div><div><h3>Design</h3><p>Prospective cohort.</p></div><div><h3>Setting</h3><p>Sport setting.</p></div><div><h3>Participants</h3><p>Female athletes (n = 117, age 15–19 years), from Swedish sport high schools, active in soccer, handball, or floorball.</p></div><div><h3>Main outcome measures</h3><p>Differences in pre-injury tests values of 11 physical fitness tests in injured versus non-injured athletes, assessed as number of traumatic knee injuries over one season.</p></div><div><h3>Results</h3><p>28 athletes sustained 34 traumatic knee injuries. Athletes who sustained an injury had a shorter distance on the Yo-Yo IR1 test at baseline than those without an injury (mean difference −193 m, CI -293− −65 m). None of the other tests, assessed for muscular strength, endurance, power, flexibility and dynamic knee valgus, differed between injured and non-injured athletes.</p></div><div><h3>Conclusions</h3><p>Youth female athletes with lower intermittent endurance capacity, assessed with the Yo-Yo IR1, seemed to be at greater risk of traumatic knee injury. Neither hop performance, flexibility, dynamic knee valgus nor isolated strength tests at baseline could distinguish between injured and non-injured youth female athletes at follow-up.</p></div>","PeriodicalId":49698,"journal":{"name":"Physical Therapy in Sport","volume":"69 ","pages":"Pages 15-21"},"PeriodicalIF":2.2,"publicationDate":"2024-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1466853X24000695/pdfft?md5=135078e998d154be8c3be633e4bcb40b&pid=1-s2.0-S1466853X24000695-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141592477","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}