Journal of Sport Rehabilitation最新文献

{"title":"Transcranial Direct Current Stimulation Combined With Balance Training for Chronic Ankle Instability: A Double-Blind, Pilot Randomized Controlled Trial.","authors":"Joosung Kim, Alan Needle, Jinhyun Lee, Ana Carolina Panhan, Anupama Thapa, Brian Arwari, Kyung-Min Kim","doi":"10.1123/jsr.2025-0321","DOIUrl":"https://doi.org/10.1123/jsr.2025-0321","url":null,"abstract":"<p><strong>Context: </strong>Transcranial direct current stimulation (tDCS) can enhance cortical activity and improve motor performance, potentially inducing synergetic effects when coupled with balance training. Yet, its effects during balance training in individuals with chronic ankle instability (CAI) remain unclear. This study aimed to evaluate whether tDCS has additive effects on static postural control, neural excitability, and perceived ankle function in individuals with CAI compared with sham stimulation.</p><p><strong>Design: </strong>Double-blind, pilot randomized controlled trial.</p><p><strong>Methods: </strong>Nineteen individuals with CAI were included. Participants were randomized to either active tDCS or sham tDCS. Participants and experimenters were blinded to group allocation. Twenty minutes of anodal tDCS (2 mA) was applied over the contralateral motor cortex of the CAI-injured side during balance training, 3 times a week for 4 weeks. The primary outcome was static postural control, assessed by center of pressure velocity and area during unipedal stance with eyes open and closed. Secondary outcomes included corticospinal and spinal reflexive excitability (soleus, fibularis longus, and tibialis anterior), evaluated via transcranial magnetic stimulation and Hoffmann reflex methods, respectively, during unipedal stance. Self-reported outcomes were assessed. All outcomes were assessed at baseline, during, and following a 4-week intervention. Individual analyses were conducted.</p><p><strong>Results: </strong>Individual analyses show changes in static balance, soleus corticospinal excitability, and ankle function over time, regardless of tDCS group. Effect size estimates indicated small group differences at weeks 2 and 4 in the active-tDCS group compared with sham for most measures. However, the center of pressure area under the eyes-closed condition and fibularis longus corticospinal excitability demonstrated potential moderate (d = -0.62) and large (d = -0.88) effects, respectively.</p><p><strong>Conclusion: </strong>This pilot study indicates that tDCS applied during balance training appears to provide no added benefit. However, potential changes in selected outcomes (center of pressure area and corticospinal excitability) warrant a larger clinical trial.</p>","PeriodicalId":50041,"journal":{"name":"Journal of Sport Rehabilitation","volume":" ","pages":"1-14"},"PeriodicalIF":1.5,"publicationDate":"2026-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147845473","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Relationships Between Patient-Reported Outcomes and Return to Sport Assessments in Adolescent Patients Following Anterior Cruciate Ligament Reconstruction.","authors":"Cody W Walker, Alison Snyder Valier, R Curtis Bay, Victor V Prati, Brant C Sachleben","doi":"10.1123/jsr.2025-0222","DOIUrl":"https://doi.org/10.1123/jsr.2025-0222","url":null,"abstract":"<p><strong>Context: </strong>Psychological health effects after anterior cruciate ligament (ACL) reconstruction is of interest, with perceived poor health thought to negatively impact recovery. Understanding the relationship between perceived health at mid-rehabilitation and objective outcomes at return to sport will help clinicians ensure that rehabilitation meets the specific needs of patients.</p><p><strong>Design: </strong>A retrospective chart review.</p><p><strong>Methods: </strong>A chart review of 44 adolescent patients (n = 22 males, 50%) who presented for ACL reconstruction from March 2020 to March 2022 was conducted. Patients completed the ACL-Return to Sport Index Short Form and Pediatric International Knee Documentation Committee form during mid-rehabilitation evaluation (average 5.7 [0.73] mo postsurgery) and performed strength and functional testing during the return to sport evaluation (average 9.1 [1.6] mo postsurgery). Outcome variables included absolute and relative bodyweight peak torque knee extension and peak torque knee flexion, limb symmetry index, single-leg hop for distance, and 30-second side hop.</p><p><strong>Results: </strong>Higher Pediatric International Knee Documentation Committee scores at mid-rehabilitation were correlated with higher peak torque (r = .369, P < .05) and higher peak torque/BW (r = .527, P < .05) during knee extension on the operative leg and better knee extension limb symmetry index (r = .381, P < .05) at return to sport testing. Higher Pediatric International Knee Documentation Committee scores mid-rehabilitation were correlated with a lower hamstring-to-quadriceps ratio on the operative leg (r = -.373, P < .05) at return to sport testing. Higher ACL-Return to Sport Index Short Form scores mid-rehabilitation were correlated with lower 30-second side-hop repetitions on the operative (r = -.480, P < .05) and nonoperative (r = .456, P < .05) legs.</p><p><strong>Conclusion: </strong>These correlations suggest that patient-reported outcomes during mid-rehabilitation may correlate to strength and functional outcomes at return to sport. In addition, biases may exist between patient-reported outcomes, patient sex, and strength and functional measures. The unexpected finding that readiness to return to sport correlated with lower repetitive jumping performance requires further study.</p>","PeriodicalId":50041,"journal":{"name":"Journal of Sport Rehabilitation","volume":" ","pages":"1-9"},"PeriodicalIF":1.5,"publicationDate":"2026-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147787688","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Movement Quality Assessment During Planned and Unplanned Change-of-Direction Maneuvers Among Female Basketball Players.","authors":"Evan Andreyo, Casey Unverzagt, Thomas Dos'Santos, J Jay Dawes","doi":"10.1123/jsr.2024-0355","DOIUrl":"https://doi.org/10.1123/jsr.2024-0355","url":null,"abstract":"<p><strong>Context: </strong>Women's basketball has a high incidence of anterior cruciate ligament injuries, often during change-of-direction maneuvers. Because change-of-direction movement quality influences anterior cruciate ligament loading and differs between planned and unplanned tasks, the purpose of this study was to compare planned and unplanned change-of-direction mechanics in female collegiate basketball players, examining differences across collegiate divisions.</p><p><strong>Design: </strong>Within- and between-subject cross-sectional comparative study.</p><p><strong>Methods: </strong>Sixty collegiate female basketball players (divisions 2 and 3) completed planned and unplanned change-of-direction tasks analyzed using 2-dimensional video recording and the Cutting Movement Assessment Score (CMAS). Investigators used a paired sample data analysis for movement conditions (planned vs unplanned) and group comparison for collegiate divisions.</p><p><strong>Results: </strong>Total mean CMAS scores were significantly higher during planned conditions compared with unplanned (mean difference = 1.27, 95% CI, 0.96-1.58; P < .01; d = 1.065). All individual CMAS items were significantly higher during planned movements (P < .05) except items 5 and 6 (P > .05) and higher scores in unplanned conditions in item 2 (P < .001). Approach velocity demonstrated a small but significant correlation with the total CMAS score (P < .05; r = .23) and was significantly higher during planned conditions (mean difference = 0.33 m/s, 95% CI, 0.26-0.39; P < .01). However, the interaction between condition and velocity was not statistically significant in the linear mixed-methods model. Anthropometrics, training experience, and test trial time were not statistically significant predictors of division (P < .05; R2 = .10).</p><p><strong>Conclusions: </strong>Individuals may demonstrate higher CMAS scores during planned than unplanned movement conditions. However, the differences in movement quality across conditions may be influenced by additional variables, such as approach velocity and stimulus timing. Collegiate division may not significantly affect movement quality in collegiate female basketball players.</p>","PeriodicalId":50041,"journal":{"name":"Journal of Sport Rehabilitation","volume":" ","pages":"1-9"},"PeriodicalIF":1.5,"publicationDate":"2026-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147787731","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"YouTube as a Source of Patient Information on Ankle Sprains: A Quality and Reliability Analysis.","authors":"Jared Rubin, Alexander Tham, Michael Allen, Nathaniel Mattera, Nathaniel Mercer, Isaac Dayan, Jay Zaifman, Paloma Gauthier, John G Kennedy","doi":"10.1123/jsr.2025-0504","DOIUrl":"https://doi.org/10.1123/jsr.2025-0504","url":null,"abstract":"<p><strong>Context: </strong>Although ankle sprains are among the most common musculoskeletal injuries, prior studies have not systematically reviewed the educational quality of related YouTube videos. We aimed to evaluate the characteristics, sources, and educational quality of YouTube videos addressing ankle sprains.</p><p><strong>Design: </strong>Cross-sectional analysis of online material.</p><p><strong>Methods: </strong>We performed 4 independent YouTube searches on ankle sprains and recorded the top 25 results for each search. After screening 100 videos, we included 73 total videos for final analysis. We evaluated video content using 3 validated tools: Global Quality Scale (GQS), the Patient-Friendliness Scale, and the Journal of the American Medical Association criteria.</p><p><strong>Results: </strong>A total of 73 YouTube videos accumulated over 20.7 million views (mean: 283,546). Videos received 14.8 likes and 1.04 comments per 1000 views. Among included videos, the mean GQS score measured 3.75, Patient-Friendliness Scale score measured 3.48, and Journal of the American Medical Association score measured 1.19, indicating good accessibility, moderate educational quality, and poor transparency. Physicians produced the highest overall quality and transparency (GQS: 3.89, Journal of the American Medical Association: 1.50). Rehabilitation-focused content emerged as the most common theme (36%), maintaining good quality and accessibility (GQS: 3.77, Patient-Friendliness Scale: 4.23).</p><p><strong>Conclusion: </strong>YouTube offers wide access to ankle sprain information, yet video quality, accessibility, and transparency remain low. Physician-created and rehabilitation-focused videos demonstrated superior educational value, although highly viewed videos did not correspond with higher quality. These findings highlight the need for more reliable, high-quality ankle sprain content on online platforms.</p>","PeriodicalId":50041,"journal":{"name":"Journal of Sport Rehabilitation","volume":" ","pages":"1-6"},"PeriodicalIF":1.5,"publicationDate":"2026-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147647285","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Integrated Effect of Physical Activity and Sleep Problems on Concussion Symptom Resolution.","authors":"Zackary P Salfi, Mathew J Wingerson, Catherine C Donahue, Katherine L Smulligan, Stacey L Simon, Julie C Wilson, David R Howell","doi":"10.1123/jsr.2025-0385","DOIUrl":"10.1123/jsr.2025-0385","url":null,"abstract":"<p><strong>Context: </strong>Physical activity (PA) and sleep are modifiers of symptom resolution among children and adolescents with concussion.</p><p><strong>Design: </strong>Retrospective chart review.</p><p><strong>Methods: </strong>We conducted a chart review on 8-18-year-olds evaluated ≤ 21 days of concussion and followed until symptom resolution. From patient charts, we extracted demographics, initial symptom burden, and relevant medical history. At the initial visit, patients answered 2 yes/no questions about PA participation (yes/no) and experiencing sleep problems (yes/no) since their injury. Based on these responses, patients were grouped as: physically active without sleep problems (+PA/+Sleep), physically active with sleep problems (+PA/-Sleep), not physically active without sleep problems (-PA/+Sleep), and not physically active with sleep problems (-PA/-Sleep). Analysis of variance and chi-squared tests were run to determine significant differences between groups, and a cox proportional hazards model was constructed to identify differences in time to symptom resolution after covariate adjustment.</p><p><strong>Results: </strong>Among 335 patients (14.4 [2.3] y old; 62% female; evaluated 8.6 [5.4] d postconcussion), 55% were not physically active and not experiencing sleep problems (n = 184), 29% were not physically active and experiencing sleep problems (n = 96), 14% were physically active and not experiencing sleep problems (n = 46), and 3% were physically active and experiencing sleep problems (n = 9). After adjusting for symptom severity, time since injury, anxiety history, and preinjury sleep problems, the physically active without sleep problems (+PA/+Sleep) group had an earlier symptom resolution time compared with all other groups (-PA/+Sleep group hazard ratio = 0.52, 95% CI, 0.37-0.74; P = .0002; -PA/-Sleep group hazard ratio = 0.56, 95% CI, 0.38-0.83; P = .0038 and +PA/-Sleep group hazard ratio = 0.38, 95% CI, 0.16-0.89; P = .0258).</p><p><strong>Conclusions: </strong>Children and adolescents who reported both engaging in PA and not experiencing sleep problems at their initial evaluation for concussion experienced significantly earlier symptom resolution time compared with those who reported one or neither characteristic, suggesting a potential combined effect between sleep and PA on adolescent concussion recovery.</p>","PeriodicalId":50041,"journal":{"name":"Journal of Sport Rehabilitation","volume":" ","pages":"603-611"},"PeriodicalIF":1.7,"publicationDate":"2026-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13383299/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147647350","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Which Criteria Determine Return-to-Play Decisions Following Hip and Groin Injuries in Soccer Players: A Scoping Review.","authors":"Afxentios Kekelekis, Paolo Perna, Marco Beato","doi":"10.1123/jsr.2025-0167","DOIUrl":"10.1123/jsr.2025-0167","url":null,"abstract":"<p><strong>Context: </strong>Return to play (RTP) following hip and groin injuries in soccer remains a complex and high-stakes component of athlete management. These injuries account for a substantial proportion of time-loss episodes and are characterized by high recurrence rates and variable recovery timelines. Despite their prevalence, there is currently no standardized or validated framework for RTP decision making, and applied criteria vary considerably across clinical and sport-performance settings.</p><p><strong>Objectives: </strong>To identify, categorize, and synthesize the criteria used to guide RTP decisions following hip and groin injuries in soccer players and to evaluate their implementation across clinical, functional, and sport-specific domains.</p><p><strong>Evidence acquisition: </strong>A comprehensive search was conducted across PubMed, Scopus, and SPORTDiscus databases from 2003 to September 2025, limited to English-language peer-reviewed publications. Studies were eligible if they investigated or described RTP criteria in soccer players recovering from hip and/or groin injuries, regardless of competitive level. Two reviewers independently performed screening, selection, and data extraction using the Rayyan web platform. The protocol was preregistered on the Open Science Framework (osf.io/8kzq3).</p><p><strong>Evidence synthesis: </strong>Twelve studies met the inclusion criteria. Return-to-play criteria were organized into 3 domains: (1) clinical, (2) functional, and (3) sport-specific/on-field criteria. Recent evidence highlights a paradigm shift from symptom- to capacity-based RTP frameworks integrating objective strength testing, neuromuscular control, and GPS-derived workload replication. However, standardized thresholds and progression sequences remain undefined.</p><p><strong>Conclusions: </strong>Return-to-play decision making after hip and groin injuries in soccer is inherently multidimensional. The most defensible approach combines clinical recovery, functional capacity, and sport-specific readiness verified by objective and reproducible benchmarks. The development of standardized, criterion-based, and sex-inclusive RTP frameworks-integrating physiological, biomechanical, and psychological domains-will enhance the accuracy, safety, and transparency of return-to-performance management.</p>","PeriodicalId":50041,"journal":{"name":"Journal of Sport Rehabilitation","volume":" ","pages":"459-473"},"PeriodicalIF":1.7,"publicationDate":"2026-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147482158","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Sex Differences During Star Excursion Balance Test in Individuals With Chronic Hip-Related Groin Pain.","authors":"Cameron Swick, Michael D Harris, Fan Zhang, Karen Steger-May, Lauren Froehlich, Marcie Harris-Hayes","doi":"10.1123/jsr.2025-0072","DOIUrl":"10.1123/jsr.2025-0072","url":null,"abstract":"<p><strong>Context: </strong>Individuals with chronic hip-related groin pain display impaired dynamic postural control as measured by the modified star excursion balance test; however, the kinematics and kinetics displayed have not been reported in chronic hip-related groin pain populations. Hip joint kinematics during various tasks differ between males and females with chronic hip-related groin pain; however, few studies have reported trunk kinematics or hip joint loading. We were curious if sex differences exist in trunk, hip, and pelvis kinematics and hip joint loading during the modified star excursion balance test among those with chronic hip-related groin pain.</p><p><strong>Design: </strong>Cross-sectional.</p><p><strong>Methods: </strong>Patients with chronic hip-related groin pain performed 3 trials of the modified star excursion balance test, reaching in anterior, posteromedial, and posterolateral directions. We used a motion capture system and force plates to capture hip, pelvis, and trunk kinematic and kinetic data. Variables of interest included reach distance, normalized by leg length, and sagittal and frontal plane hip, pelvis, and trunk kinematics and hip joint kinetics at the time of max reach. We used independent t tests or Wilcoxon rank sum tests to assess between-group differences.</p><p><strong>Results: </strong>Compared with males (n = 11, age = 28 years, body mass index = 25.0 kg/m2), females (n = 17, age = 25 years, body mass index = 22.1 kg/m2) displayed larger hip adduction angle during anterior (12.6° vs 6.1°, P = .048) and posteromedial (1.5° vs -4.6°, P = .043) directions, larger contralateral pelvic drop angle during anterior direction (-1.7° vs 2.3°, P = .014), smaller trunk flexion angle during posteromedial direction (25.8° vs 34.8°, P = .045), and smaller hip flexion moment during posterolateral direction (0.56 vs 0.87 N·m/kg, P = .021). Females and males displayed similar reach distances.</p><p><strong>Conclusion: </strong>Movement strategies differ between sexes, with females displaying more hip adduction motion, more contralateral pelvic drop, less trunk flexion motion, and smaller hip flexion moments.</p>","PeriodicalId":50041,"journal":{"name":"Journal of Sport Rehabilitation","volume":" ","pages":"431-438"},"PeriodicalIF":1.7,"publicationDate":"2026-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13584116/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146114459","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Association Between Self-Reported Hip Crepitus and Pain, Quality of Life, and Psychological Features in Football Players With Hip/Groin Pain: A 2-Year Longitudinal Study.","authors":"Fernanda Serighelli, Kay M Crossley, Matthew G King, Mark J Scholes, Joanne L Kemp, Joshua J Heerey, FORCe Group, Danilo De Oliveira Silva","doi":"10.1123/jsr.2025-0353","DOIUrl":"10.1123/jsr.2025-0353","url":null,"abstract":"<p><strong>Context: </strong>Hip crepitus creates negative emotions and beliefs, leading to adaptations in sports and daily life activities. People with hip/groin pain present psychological responses to pain, and hip crepitus severity may amplify those features. We aimed to explore associations between self-reported hip crepitus severity and pain, quality of life, and psychological features at baseline and 2-year follow-up in football players with hip/groin pain.</p><p><strong>Design: </strong>Longitudinal.</p><p><strong>Methods: </strong>We recruited 184 football players with hip/groin pain (20% females, mean age [SD] = 27.6 [0.4]). Self-reported crepitus severity was assessed using a single item of the International Hip Outcome Tool-33. Pain severity was assessed using a Numeric Pain Rating Scale describing average pain playing football and average pain in the last month. Quality of life was assessed using the Copenhagen Hip and Groin Outcome Score subscale. Psychological features included standardized measures of kinesiophobia and pain catastrophizing. We assessed associations between crepitus severity and these outcomes using linear regression.</p><p><strong>Results: </strong>At baseline, greater (worse) hip crepitus severity was associated with worse average pain in the last month (β = -0.02), quality of life (β = 0.16), and kinesiophobia (β = -0.05). We found sex interactions for pain catastrophizing and average pain playing football, with stronger associations in females (β = -0.19 and β = -0.03) than males (β = -0.09 and β = -0.01). Hip crepitus severity at baseline was not associated with changes in pain, quality of life, or psychological features over 2 years.</p><p><strong>Conclusion: </strong>Worse hip crepitus severity was cross-sectionally associated with worse pain, quality of life, and psychosocial features in football players with hip/groin pain, but not with the progression of these outcomes over 2 years. Females had a stronger association between hip crepitus and pain catastrophizing and average pain playing football than males at baseline.</p>","PeriodicalId":50041,"journal":{"name":"Journal of Sport Rehabilitation","volume":" ","pages":"423-430"},"PeriodicalIF":1.7,"publicationDate":"2026-01-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146031474","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Intersession, Intrarater, and Interrater Reliability of the Single- and Double-Leg Landing Error Scoring Systems in Healthy Sporting Populations.","authors":"Priyankara Manoj Rajakaruna, Yvonne C Learmonth, Alasdair R Dempsey","doi":"10.1123/jsr.2024-0378","DOIUrl":"10.1123/jsr.2024-0378","url":null,"abstract":"<p><strong>Context: </strong>The double-leg Landing Error Scoring System (LESS) identifies noncontact ACL injury risk. However, its intersession reliability has been examined in only one study. As such injuries often occur during single-leg landings, research on the single-leg LESS (SLESS) in field settings remains lacking. Therefore, our study investigated the intersession, intrarater, and interrater reliability of single- and double-leg jump-landing tasks using SLESS and LESS.</p><p><strong>Methods: </strong>Thirty-five team-sports players (age: 26.4 [6.7] years, n = 28 males and 7 females) performed 3 jump-landing variations (single-leg dominant and nondominant and double leg) across 3 sessions. We conducted sessions 1 and 2 on the same day, with session 3 one week later. Three assessors rated video footage to determine SLESS and LESS total scores. Reliability was assessed using the intraclass correlation coefficient (ICC), standard error of measurement, and coefficient of variation (CV) with 95% CIs.</p><p><strong>Results: </strong>Intersession reliability for the SLESS and LESS scores showed good to excellent ICCs (dominant leg: .89, nondominant leg: .91, double leg: .79) with moderate CVs (dominant leg: 6.5%, nondominant leg: 6.6%, double leg: 7.9%). Intrarater reliability for the SLESS and LESS scores also demonstrated good to excellent ICCs (dominant leg: .94, nondominant leg: 0.92, double leg: .88) with moderate CVs (dominant leg: 5.0%, nondominant leg: 6.0%, double leg: 5.6%). Interrater reliability for the SLESS and LESS scores exhibited good ICCs (dominant leg: .82, nondominant leg: .83, double leg: .79) but poor CVs (dominant leg: 10.5%, nondominant leg: 11.5%, double leg: 11.5%). Single-leg LESS and LESS scores exhibited small standard error of measurement values between 1.05 and 1.11 for all reliability measures.</p><p><strong>Conclusions: </strong>The SLESS and LESS are reliable field-based tools for assessing jump-landing tasks among team-sports players, facilitating confidence in sports and exercise science research.</p>","PeriodicalId":50041,"journal":{"name":"Journal of Sport Rehabilitation","volume":" ","pages":"366-372"},"PeriodicalIF":1.5,"publicationDate":"2025-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145866296","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Quantitative Measurement of Rotational Knee Stability: A Systematic Review of Instrument Reliability and Validity.","authors":"Frédérique A C Oosterbaan, Mariska G H Wesseling, Tom M Piscaer, Tjep Hoedemakers, Jaap Harlaar, Erin M Macri","doi":"10.1123/jsr.2025-0162","DOIUrl":"10.1123/jsr.2025-0162","url":null,"abstract":"<p><strong>Context: </strong>Objectively evaluating knee stability in multiple planes in individuals with anterior cruciate ligament injury may provide more comprehensive information than evaluating subjectively or in only a single plane. This could support both research and clinical decision making. However, for the clinical value of such an instrument to be evaluated, reliability and validity of the instrument must first be established. Despite multiple available instruments that measure rotational knee stability, it is not clear which of these instruments has adequate reliability and validity.</p><p><strong>Objective: </strong>We performed a systematic review to identify instruments for measuring rotational knee stability and to synthesize the available literature in which validity and reliability were evaluated.</p><p><strong>Evidence acquisition: </strong>We searched 4 databases for publications reporting reliability or validity of an instrument designed to assess rotational knee stability. A narrative synthesis was used to present the results.</p><p><strong>Evidence synthesis: </strong>We identified 42 studies evaluating 25 different instruments designed to measure movement while applying a standardized torque or while a tester performed a manual test (eg, pivot shift). There was high heterogeneity in parameters reported and criterion methods used. Intrarater and interrater reliability intraclass correlation coefficients were consistently adequate (>.75) except for when lower torques (ie, 6 N·m or less) were applied or acceleration or jerk was measured instead of laxity. Four out of 19 (21.1%) studies evaluating validity reported very good correlations (r > .8) with a criterion measure.</p><p><strong>Conclusions: </strong>We found no high-quality evidence that provided sufficient evidence of both reliability and validity in any device. To evaluate the clinical benefit of objectively evaluating stability in multiple planes, further work is needed to develop, refine, and evaluate this class of devices.</p>","PeriodicalId":50041,"journal":{"name":"Journal of Sport Rehabilitation","volume":" ","pages":"271-291"},"PeriodicalIF":1.5,"publicationDate":"2025-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145866337","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}