Katherine L. Smulligan , Patrick Carry , Andrew C. Smith , Carrie Esopenko , Christine M. Baugh , Julie C. Wilson , David R. Howell
{"title":"Cervical spine proprioception and vestibular/oculomotor function: An observational study comparing young adults with and without a concussion history","authors":"Katherine L. Smulligan , Patrick Carry , Andrew C. Smith , Carrie Esopenko , Christine M. Baugh , Julie C. Wilson , 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 < 0.001), more positive VVE subtests (<span><math><mrow><mi>β</mi></mrow></math></span> = 3.01, 95%CI: 2.32, 3.70; p < 0.001), and higher DHI scores (<span><math><mrow><mi>β</mi></mrow></math></span> = 9.79, 95%CI: 6.27, 13.32; p < 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 < 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}
Mark C. Richardson , Paul Chesterton , Abigail Taylor , William Evans
{"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 , Paul Chesterton , Abigail Taylor , 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 <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}
Willem M.P. Heijboer , Karin M. Thijs , Adam Weir , Andreas Serner , Johannes L. Tol , Edwin A. Goedhart , Floor P. Groot
{"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 , Karin M. Thijs , Adam Weir , Andreas Serner , Johannes L. Tol , Edwin A. Goedhart , 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}
Sofia Ryman Augustsson , Timmy Gustafsson , Eva Ageberg
{"title":"Can tests of physical fitness predict traumatic knee injury in youth female athletes? A prospective cohort study","authors":"Sofia Ryman Augustsson , Timmy Gustafsson , 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}
Inaê de Oliveira , Karine J.V. Stoelben , Eduarda Santos Tulius , Vitória de Pereira Ferreira , Felipe P. Carpes
{"title":"Strength and clinical test combinations enhance predictions of sagittal and frontal plane biomechanics in single-leg landing","authors":"Inaê de Oliveira , Karine J.V. Stoelben , Eduarda Santos Tulius , Vitória de Pereira Ferreira , Felipe P. Carpes","doi":"10.1016/j.ptsp.2024.06.008","DOIUrl":"10.1016/j.ptsp.2024.06.008","url":null,"abstract":"<div><h3>Objectives</h3><p>To determine whether clinical screening tests can predict lower limb joint kinematics and kinetics outcomes eliciting anterior cruciate ligament (ACL) injury risk in single-leg landings.</p></div><div><h3>Design</h3><p>Cross-sectional study.</p></div><div><h3>Setting</h3><p>Laboratory research.</p></div><div><h3>Participants</h3><p>Twenty-six professional male futsal athletes.</p></div><div><h3>Main outcome measures</h3><p>Participants completed the Modified Star Excursion Balance Test (mSEBT), Lateral Step Down (LSD), Lunge, Hop tests, and isometric strength tests for clinical screening of lower extremity injury risk and performed single-leg landings to assess lower extremity 3D kinematics and kinetics outcomes.</p></div><div><h3>Results</h3><p>mSEBT, LSD, and isometric strength were the more important tests when constructing the prediction models. The predictive power of clinical tests for screening injury risk significantly increases when combined with strength measurements (p = 0.005, f<sup>2</sup> = 0.595). We discerned 11 biomechanical predictions, six explicitly related to the sagittal plane's biomechanics. Some predictions were leg-dependent, with muscle strength tests predominantly predicting biomechanical outcomes of the preferred leg.</p></div><div><h3>Conclusion</h3><p>Combining clinical screening tests with strength measures enhances ACL injury risk factors prediction during single-leg landings. Clustering at least two tests improves prediction accuracy, aiding injury prevention planning and decision-making.</p></div>","PeriodicalId":49698,"journal":{"name":"Physical Therapy in Sport","volume":"69 ","pages":"Pages 1-7"},"PeriodicalIF":2.2,"publicationDate":"2024-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141545727","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":"Mechanisms of lateral ankle ligament sprains in professional netball: A systematic video analysis","authors":"Max C. Stuelcken , Claire E. Hiller , Liam Toohey","doi":"10.1016/j.ptsp.2024.06.004","DOIUrl":"10.1016/j.ptsp.2024.06.004","url":null,"abstract":"<div><h3>Objectives</h3><p>To undertake a systematic analysis of 17 medical attention and time-loss lateral ankle ligament sprain (LALS) events from televised Australian professional netball games during the 2020–2023 seasons.</p></div><div><h3>Design</h3><p>Case series.</p></div><div><h3>Methods</h3><p>Three analysts independently assessed the video footage and then convened to review and discuss each case until a consensus was reached.</p></div><div><h3>Results</h3><p>When in possession (7 cases) a player was commonly performing an agility-based manoeuvre to break free from an opponent and reposition themselves to be a passing option (5/7 cases). When out of possession (10 cases) a player was either attempting to intercept a pass (6 cases) or marking an opponent (4 cases). Players tended to land on the anterior one-third of the plantar surface of the foot - forefoot or shoe tip (7 cases). Players often landed on either the ground (7 cases) or the opponent's shoe then the ground (8 cases). In 9 cases the ankle-foot was considered to be in a neutral alignment in the frontal plane at landing. At the estimated index frame the players' weight tended to be all on the foot on the injured side (11 cases) or favouring the foot on the injured side (5 cases). Inversion and adduction was a common injury mechanism. Plantar-flexion was rarely involved.</p></div><div><h3>Conclusion</h3><p>Landing on the anterior one-third of the plantar surface of the foot and subsequent weight transference onto the injured limb side was more important than ankle-foot inversion at initial ground contact. Exercises involving external perturbations that challenge the control of frontal and transverse plane ankle-foot motion and improve proprioception, neuromuscular control, and dynamic balance are warranted.</p></div>","PeriodicalId":49698,"journal":{"name":"Physical Therapy in Sport","volume":"69 ","pages":"Pages 8-14"},"PeriodicalIF":2.2,"publicationDate":"2024-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141545726","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}
Thomas Hansoulle , Jean-Louis Peters-Dickie , Philippe Mahaudens , Anh Phong Nguyen
{"title":"Do we underestimate the frequency of ankle sprains in running? A systematic review and meta-analysis","authors":"Thomas Hansoulle , Jean-Louis Peters-Dickie , Philippe Mahaudens , Anh Phong Nguyen","doi":"10.1016/j.ptsp.2024.06.009","DOIUrl":"10.1016/j.ptsp.2024.06.009","url":null,"abstract":"<div><h3>Objective</h3><p>To provide a systematic review and meta-analysis of the proportion of ankle sprains in running practices.</p></div><div><h3>Design</h3><p>Systematic review and meta-analysis.</p></div><div><h3>Main outcome measures</h3><p>We calculated the weighted summary proportion and conducted meta-analyses for runners, considering levels (elite/recreational) and disciplines (distance, track, cross-country, trail, and orienteering).</p></div><div><h3>Results</h3><p>32 studies were included in the systematic review and 19 were included in the meta-analysis with a level of quality ranging from poor to good. Proportion of ankle sprains in runners was 13.69% (95%CI = 7.40–21.54; I<sup>2</sup> = 98.58%) in global, 12.20% (95%CI = 5.24–21.53; I<sup>2</sup> = 89.31%) in elite, 19.40% (95%CI = 10.05–30.90; I<sup>2</sup> = 99.09%) in recreational, 8.51% (95%CI = 4.22–14.12; I<sup>2</sup> = 96.15%) in distance, 67.42% (95%CI = 0.50–82.85; I<sup>2</sup> = 99.36%) in track, 27.07% (95%CI = 12.48–44.81; I<sup>2</sup> = 97.97%) in cross-country, and 25.70% (95%CI = 19.87–32.14; I<sup>2</sup> = 0.00) in orienteering.</p></div><div><h3>Conclusions</h3><p>Running practice results in significant proportion rate of ankle sprains. Recreational runners exhibit higher proportion than elite. Running disciplines, especially track, cross-country, and orienteering, influence reported ankle sprain rates, surpassing those of distance runners.</p></div>","PeriodicalId":49698,"journal":{"name":"Physical Therapy in Sport","volume":"68 ","pages":"Pages 60-70"},"PeriodicalIF":2.2,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141536292","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}
Paul Chesterton , Matthew Wright , Nathan Liddle , Stacey Hardin , Skylar Richards , Garrison Draper
{"title":"Practitioners’ perspective of non-contact injury risk factors and injury prevention programming in professional North American male soccer","authors":"Paul Chesterton , Matthew Wright , Nathan Liddle , Stacey Hardin , Skylar Richards , Garrison Draper","doi":"10.1016/j.ptsp.2024.06.003","DOIUrl":"10.1016/j.ptsp.2024.06.003","url":null,"abstract":"<div><h3>Objective</h3><p>To evaluate non-contact injury prevention strategies of professional men's soccer clubs in elite North American league soccer. To understand the application, perceived effectiveness and barriers to implementation.</p></div><div><h3>Design</h3><p>Online cross-Sectional Study.</p></div><div><h3>Setting</h3><p>North American elite soccer teams.</p></div><div><h3>Participants</h3><p>96 medical and performance support staff of elite North American teams.</p></div><div><h3>Main outcome measure</h3><p>The survey consisted of 20 questions and captured 1) practitioners' demographics; 2) perceptions of risk factors; 3) the use of assessment and monitoring strategies; and 4) perceptions of the implementation of injury prevention programmes’.</p></div><div><h3>Results</h3><p>Injury prevention programmes were perceived as ‘effective’ (Median 4, Interquartile range 4-4) and reduced injury rates (n = 94, 98%, 95 CI% 93 to 99). A range of potential risk factors were rated as “very important” (4.58 ± 0.52 Likert scale points; mean ± standard deviation). A multi-disciplinary approach to the design, application and monitoring of programmes was generally adopted. Competing training priorities (n = 75, 78%, 95 CI% 69 to 85) and game schedules (n = 71, 74%, 95 CI% 64 to 82) were the most prevalent barriers to injury prevention implementation.</p></div><div><h3>Conclusions</h3><p>Injury prevention programmes were perceived as effective in reducing non-contact injuries. Managing the conflicting priorities between scheduling training, tactical and conditioning goals were considered the key barriers to desired implementation.</p></div>","PeriodicalId":49698,"journal":{"name":"Physical Therapy in Sport","volume":"68 ","pages":"Pages 51-59"},"PeriodicalIF":2.2,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1466853X24000658/pdfft?md5=49d353bbb5545a1047141787fe7d3680&pid=1-s2.0-S1466853X24000658-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141474164","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}
Brooke Jenner , Carmel Nottle , Julie L. Walters , Steven W. Saunders , Anthony S. Leicht , Robert G. Crowther
{"title":"Reliability of lower limb strength assessment in female team sport athletes","authors":"Brooke Jenner , Carmel Nottle , Julie L. Walters , Steven W. Saunders , Anthony S. Leicht , Robert G. Crowther","doi":"10.1016/j.ptsp.2024.06.006","DOIUrl":"10.1016/j.ptsp.2024.06.006","url":null,"abstract":"<div><h3>Background</h3><p>Lower limb injury rates have increased dramatically in line with increased female sport participation levels. Muscle strength is a modifiable lower limb injury risk factor, guiding performance monitoring and rehabilitation.</p></div><div><h3>Objectives</h3><p>The aim of this study was to investigate the test-retest reliability of isokinetic and isometric lower limb peak torque to body mass of muscles acting on the hip, knee, and ankle in female team sport athletes. It was hypothesised the test-retest reliability would be good (intraclass correlation coefficients (ICC) ≥ 0.75).</p></div><div><h3>Methods</h3><p>Thirty-eight female athletes (Australian Rules Football = 18, netball = 12, soccer = 8) aged 16–35 years participated in this study. Participants performed isokinetic (60°/s and 120°/s) and isometric testing on a Biodex Isokinetic Dynamometer on three separate days.</p></div><div><h3>Results</h3><p>Poor to good reliability was demonstrated for all joint movements (ICC = 0.38–0.88) with small to moderate effect sizes (0.00–0.43) and typical errors (5.65–24.49).</p></div><div><h3>Conclusion</h3><p>Differences in peak torque to body mass were observed between sessions one and two and/or one and three, demonstrating a learning effect. Therefore, three testing sessions, and/or the inclusion of a familiarisation session, is recommended for future assessments in populations unfamiliar with dynamometry.</p></div>","PeriodicalId":49698,"journal":{"name":"Physical Therapy in Sport","volume":"68 ","pages":"Pages 71-79"},"PeriodicalIF":2.2,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1466853X24000683/pdfft?md5=54e920a6ce0b0193fdf4a8ff7d8746ab&pid=1-s2.0-S1466853X24000683-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141539111","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":"Are demographics, physical function and psychological response associated with return to sport at one year following ACL-reconstruction?","authors":"Anna Cronström , Eva Ageberg , Charlotte K. Häger","doi":"10.1016/j.ptsp.2024.06.001","DOIUrl":"10.1016/j.ptsp.2024.06.001","url":null,"abstract":"<div><h3>Objective</h3><p>To determine the relative contribution of each of the following aspects: demographics, physical function, and patient-reported outcome measures (PROMs), including both physical and psychological constructs, to return to sport (RTS) (any level) one-year post anterior cruciate ligament reconstruction (ACLR).</p></div><div><h3>Design</h3><p>Cross-sectional cohort study.</p></div><div><h3>Methods</h3><p>We included data for 143 participants (73 women, mean (SD) age 24 (5.8) years) ∼ one-year post-ACLR. Data comprised demographics, physical function (hop performance, hip and knee peak torque) and PROMs (Knee Osteoarthritis Outcome Score subscales, perceived stress, and ACL Return to Sport after Injury scale (ACL-RSI)). We then used a Z-normalized multivariable logistic regression model to establish the relative contribution of factors associated with RTS.</p></div><div><h3>Results</h3><p>Sixty-four (45%) of the participants had returned to sport at one year post-ACLR. In the regression model, greater hip abduction peak torque (OR = 1.70, 95% CI; 1.01 to 2.84) and greater psychological readiness to RTS (OR = 2.32, 95% CI; 1.30 to 4.12) were the only variables associated with RTS (R<sup>2</sup> = 0.352).</p></div><div><h3>Conclusions</h3><p>The significant contribution of hip abduction strength and psychological readiness to RTS was still relatively small, suggesting other potential factors explaining RTS which may not be captured by common RTS criteria.</p></div>","PeriodicalId":49698,"journal":{"name":"Physical Therapy in Sport","volume":"68 ","pages":"Pages 22-30"},"PeriodicalIF":2.2,"publicationDate":"2024-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1466853X24000634/pdfft?md5=7994b1263a39eee0e39d2bb882af0983&pid=1-s2.0-S1466853X24000634-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141409174","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}