Journal of Sport Rehabilitation最新文献

{"title":"Assessment of Quadriceps Muscle Characteristics in Female Division I Athletes: A Validation Study of Wireless Probes Against Standard Ultrasound Units.","authors":"Jessica E Tolzman, Corey D Grozier, Arjun Parmar, Katherine Collins, Christopher Kuenze, Brad Winn, Matthew S Harkey","doi":"10.1123/jsr.2024-0356","DOIUrl":"https://doi.org/10.1123/jsr.2024-0356","url":null,"abstract":"<p><strong>Objective: </strong>Wireless ultrasound probes offer a quicker, more affordable option for muscle quality assessment compared with standard cart units, yet their effectiveness for evaluating larger muscles such as the rectus femoris in terms of cross-sectional area (CSA) and echo-intensity (EI) is unclear due to limited field of view. This study evaluates whether rectus femoris thickness and EI measured with a wireless probe correlate with CSA and EI obtained from a standard cart ultrasound.</p><p><strong>Methods: </strong>A cross-sectional, convenience sample of 29 division I college female athletes (age: 20.1 [1.1] y, height: 169.7 [7.4] cm, mass: 69.7 [10.0] kg) were recruited. Panoramic thigh ultrasound images were acquired with a standard ultrasound cart to assess the rectus femoris CSA and EI at 50% of the thigh length. A wireless ultrasound probe was used to acquire stationary images with the knee in the same position to assess rectus femoris thickness and EI. A Pearson product-moment correlation was used to determine the association between the muscle outcomes obtained with the standard cart ultrasound and wireless ultrasound probe.</p><p><strong>Results: </strong>Standard ultrasound CSA (10.1 [2.0] cm2) and wireless ultrasound thickness (2.0 [0.3] cm) were strongly associated (r = .71, P < .001). Standard ultrasound EI (56.2 [5.1] arbitrary units) and wireless ultrasound EI (62.0 [6.3] arbitrary units) were moderately associated (r = .49, P = .007).</p><p><strong>Conclusion: </strong>Wireless ultrasound offers a fast and accessible method for assessing muscle thickness in female division I athletes when compared with similar muscle size and quality metrics measured on panoramic images acquired with a standard ultrasound cart. The echogenicity indices from wireless and standard ultrasound are significantly associated between units; however, wireless ultrasound systematically overestimates echogenicity compared with the standard.</p>","PeriodicalId":50041,"journal":{"name":"Journal of Sport Rehabilitation","volume":" ","pages":"1-5"},"PeriodicalIF":1.3,"publicationDate":"2025-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144592813","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":"Effect of Platelet-Rich Plasma Injection in Hamstring Injury: A Systematic Review and Meta-Analysis.","authors":"Meng Liu, Huanan Zhai, Renjie Wang, Jiani Wang, Yuerong Xiong, Yundong Peng","doi":"10.1123/jsr.2024-0278","DOIUrl":"https://doi.org/10.1123/jsr.2024-0278","url":null,"abstract":"<p><strong>Context: </strong>Hamstring injury is a common sports trauma that severely affects patients' daily life and function. Platelet-rich plasma (PRP), an effective therapeutic strategy for musculoskeletal injuries, may be beneficial in promoting recovery from hamstring injury.</p><p><strong>Objective: </strong>The aim of this study was to compare the prognosis of patients with hamstring injuries who were treated with injections of PRP.</p><p><strong>Evidence acquisition: </strong>In accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analysis guidelines, reviewers conducted a comprehensive search of the PubMed, Embase, and Cochrane Library databases to identify clinical studies comparing the efficacy of PRP injections combined with physical therapy (PT) versus PT alone in the treatment of hamstring injuries, specifically focusing on return-to-play time and reinjury rates. The relevant data were pooled, and a meta-analysis was performed.</p><p><strong>Evidence synthesis: </strong>Eight articles were included, including 385 patients. Quantitative analysis results showed that compared with only receiving PT, patients with hamstring injury who received PRP injection combined with PT had shorter return-to-play time (-2.29; 95% confidence interval, -4.11 to -0.47; P = .01), and reinjury rate also showed a tendency to be lower (0.79; 95% confidence interval, 0.34 to 1.83; P = .59).</p><p><strong>Conclusion: </strong>Compared with PT alone, the combination of PRP injection and PT can accelerate patients' return to play and also appears to reduce the reinjury rate in patients with hamstring injuries. However, given the variability in treatment parameters across studies, the interpretation of these results should be approached with caution.</p>","PeriodicalId":50041,"journal":{"name":"Journal of Sport Rehabilitation","volume":" ","pages":"1-8"},"PeriodicalIF":1.3,"publicationDate":"2025-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144565382","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":"Distal Plantaris Tendon Rupture in Professional Football Players: Two Case Reports of a Rare Injury.","authors":"Frederico Moeda, Madjer Hatia, João Silvestre Martins, Marco Botelho, Paulo Pinheiro, Jorge Fortunato, João Pedro Araújo, Nuno Loureiro","doi":"10.1123/jsr.2025-0116","DOIUrl":"https://doi.org/10.1123/jsr.2025-0116","url":null,"abstract":"<p><strong>Context: </strong>Distal plantaris tendon rupture is an exceptionally rare injury, often misdiagnosed as Achilles tendinopathy or partial Achilles rupture due to overlapping symptoms and anatomical proximity. While the plantaris muscle contributes minimally to plantarflexion force, its proprioceptive function may be relevant in high-performance athletes.</p><p><strong>Case presentation: </strong>We present 2 cases of distal plantaris tendon rupture in professional football players, including one athlete with bilateral rupture on separate occasions. Both sustained acute posterior ankle pain during eccentric dorsiflexion and heel-rise test without a palpable defect. High-resolution ultrasound confirmed isolated plantaris tendon rupture, allowing for timely diagnosis and management.</p><p><strong>Management and outcomes: </strong>Both athletes underwent conservative rehabilitation, emphasizing progressive loading, proprioception training, and sport-specific reintegration. They returned to full competition within 4 weeks without complications.</p><p><strong>Conclusions: </strong>Distal plantaris tendon rupture, though rare, should be considered in differential diagnoses of acute Achilles pain. Ultrasound is a valuable diagnostic tool, and structured rehabilitation ensures rapid recovery. The bilateral rupture in one athlete raises concerns about intrinsic risk factors, warranting further research into biomechanical and anatomical predispositions in elite sports.</p>","PeriodicalId":50041,"journal":{"name":"Journal of Sport Rehabilitation","volume":" ","pages":"1-5"},"PeriodicalIF":1.3,"publicationDate":"2025-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144561757","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":"Do Kinesiophobia Levels During Recovery Change After Primary Versus Secondary Anterior Cruciate Ligament Reconstruction?","authors":"Megna Mishra, Louise Thoma, Deidra Charity, Xavier D Thompson, Joe M Hart, Shelby Baez","doi":"10.1123/jsr.2024-0393","DOIUrl":"10.1123/jsr.2024-0393","url":null,"abstract":"<p><strong>Context: </strong>Thirty percent of athletes go on to sustain a secondary anterior cruciate ligament (ACL) injury after return to sport. Those that went on to suffer a secondary injury had greater kinesiophobia levels at time of return to sport; however, these relationships have primarily been observed in patients after primary ACL reconstruction (ACLR). The purpose of this study is to compare differences in kinesiophobia 4 to 8 months after an individual's primary versus secondary ACLR.</p><p><strong>Methods: </strong>This is a secondary analysis of an ongoing point of care study. To create our analytic sample, we identified participants between the ages of 14 and 35 years in the study protocol who provided data after primary and secondary ACLR, were 4 to 8 months status post-ACLR, and reported no concomitant surgical procedures at the time of primary or secondary ACLR that significantly delayed their rehabilitation protocol (e.g., meniscal repair). Demographic and participant characteristics and the Tampa Scale of Kinesiophobia-17 scores were collected after both primary and secondary ACLR. This study is a within-subjects design. Paired t tests were used to compare Tampa Scale of Kinesiophobia-17 scores between the primary and secondary ACLR.</p><p><strong>Results: </strong>Sixteen participants (male = 10, female = 6; height = 172.2 [11.5] cm, weight = 72.2 [20.9] kg) met inclusion criteria for the present study. Participants were 18.2 (3.0) years old and 5.6 (1.0) months since surgery after primary ACLR and 19.0 (1.0) years old and 5.9 (1.0) months since surgery after secondary ACLR. The average score for Tampa Scale of Kinesiophobia-17 was not different (P = .77) after the primary (32.7 [5.0]) and secondary ACLR (33.1 [5.2]).</p><p><strong>Conclusion: </strong>There were no significant differences in kinesiophobia levels in individuals after their primary and secondary ACLR. Although nonsignificant, there is lack of resolution of kinesiophobia between primary and secondary ACLR.</p>","PeriodicalId":50041,"journal":{"name":"Journal of Sport Rehabilitation","volume":" ","pages":"1-5"},"PeriodicalIF":1.3,"publicationDate":"2025-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144334272","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 Utilization of the Landing Error Scoring System in Patients' Postanterior Cruciate Ligament Reconstruction: An Exploratory Factor Analysis.","authors":"Amelia S Bruce Leicht, Xavier D Thompson, Robin M Queen, Jordan Rodu, Michael J Higgins, Kevin M Cross, Brian C Werner, Jacob E Resch, Joe M Hart","doi":"10.1123/jsr.2024-0249","DOIUrl":"10.1123/jsr.2024-0249","url":null,"abstract":"<p><strong>Context: </strong>The landing error scoring system (LESS) was developed to screen healthy individuals for anterior cruciate ligament  (ACL) injury risk factors using a jump landing task. The purpose of this study was to evaluate unique landing error components of a modified LESS scoring criteria to determine its clinical utility in patients following ACL reconstruction (ACLR).</p><p><strong>Design: </strong>An observational cross-sectional study design was implemented to determine if each individual error component of the modified LESS provided unique information in an ACLR patient population.</p><p><strong>Methods: </strong>Post-ACLR patients (N = 194 [47.9% female]) completed the LESS 7.91 (1.80) months after surgery. To complete the LESS, patients stood on a 30-cm plyometric box and jumped down to a ground target, at 50% of their height in front of the box, then completed a maximal vertical jump. The LESS was repeated 3 times. Two video cameras positioned 3 m from the landing area at a height of 1 m above the floor (frontal and sagittal) recorded all trials. Video analysis of landing kinematics was performed to determine scores for each error item using the modified LESS. Itemized error scores for each patient were evaluated using an exploratory factor analysis, and factors were retained if eigenvalues were greater than 1.</p><p><strong>Results: </strong>Our exploratory factor analysis yielded 2 factor groupings. The first factor (λ = 1.61) was comprised of 4 biplanar error items (ie, errors that occur in both the frontal and sagittal plane) that evaluated body segment positioning (eg, hip and knee flexion during landing). The second factor (λ = 1.02) was comprised of 2 errors occurring in the frontal plane that evaluated knee valgus and the overall impression of their landing strategy.</p><p><strong>Conclusions: </strong>Reducing the modified LESS errors to 6-items could improve the efficiency and clinical utilization of the LESS in ACLR patients. An abbreviated version of the modified LESS may guide clinicians' decision making in gauging patients' readiness to return to play after ACLR.</p>","PeriodicalId":50041,"journal":{"name":"Journal of Sport Rehabilitation","volume":" ","pages":"1-5"},"PeriodicalIF":1.3,"publicationDate":"2025-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144334274","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":"Impact of National Academy of Sports Medicine Corrective Exercises on Gait and Postural Control in Individuals With Chronic Ankle Instability: A Randomized Controlled Trial.","authors":"Sajad Bagherian, Fatemeh Akbari, Mohammad Rabiei, Banafsheh Mohammadi, Erik A Wikstrom","doi":"10.1123/jsr.2024-0430","DOIUrl":"https://doi.org/10.1123/jsr.2024-0430","url":null,"abstract":"<p><strong>Context: </strong>Chronic ankle instability (CAI) is associated with altered gait mechanics and impaired sensorimotor function (eg, postural control). While corrective exercise programs are known to improve sensorimotor function in those with CAI, their impact on gait-related outcomes remains unclear.</p><p><strong>Design: </strong>A randomized controlled trial was conducted to investigate the effects of a corrective exercise program on gait kinetics and postural control in individuals with CAI.</p><p><strong>Methods: </strong>Seventy recreational and collegiate athletes with CAI (aged 18-35) completed the randomized controlled trial. Participants were recruited from the local sports community and randomly assigned to either a control group (n = 34) or an intervention group (n = 36). The intervention group participated in an 8-week National Academy of Sports Medicine (NASM) corrective exercise program, while the control group received no intervention. The NASM program targets muscle relaxation, lengthening, and activation, and finally, integration into functional movements. Gait kinetics, such as contact time, foot progression angle, and peak plantar forces, as well as postural control, were assessed at baseline and postintervention and submitted to 2-way repeated-measure analysis of variance to evaluate the effects of the intervention.</p><p><strong>Results: </strong>Significant interaction effects were observed for postural control (P < .01) and gait contact time (P = .001), indicating greater improvements in the NASM group compared to the control group. No significant group or interaction effects were observed for specific plantar force distribution regions or other gait outcomes (P > .05).</p><p><strong>Conclusion: </strong>The findings suggest that an 8-week NASM corrective exercise program improves postural control but has limited effects on gait kinetics in individuals with CAI.</p>","PeriodicalId":50041,"journal":{"name":"Journal of Sport Rehabilitation","volume":" ","pages":"1-8"},"PeriodicalIF":1.3,"publicationDate":"2025-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144235772","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 Test-Retest Reliability of Multiple Patient-Reported and Clinician-Based Outcomes in People With a History of Anterior Cruciate Ligament Reconstruction.","authors":"Johanna M Hoch, Rachel R Kleis, Matthew C Hoch, Dee Dlugonski, Shelby E Baez","doi":"10.1123/jsr.2024-0313","DOIUrl":"https://doi.org/10.1123/jsr.2024-0313","url":null,"abstract":"<p><strong>Context: </strong>People with a history of anterior cruciate ligament reconstruction (ACLR) often have continued impairments, limitations, and restrictions after completion of formal rehabilitation. Clinician-based outcomes (CBOs) and patient-based outcomes are measures that can be used to determine patient status. However, the test-retest reliability of these measures in people with a history of ACLR should be determined.</p><p><strong>Design: </strong>A repeated-measures, test-retest reliability design.</p><p><strong>Methods: </strong>Participants (5.3 [2.7] y since ACLR) reported to the lab on 2 separate testing occasions separated by 1 week. Participants completed all PROs followed by all CBOs. All assessments were randomized between participants to avoid an order effect. Intraclass correlation coefficients, minimal detectable change, and standard error of measure were calculated for each outcome.</p><p><strong>Results: </strong>All PROs and CBOs had clinically acceptable reliability except the Knee Injury Osteoarthritis Outcome Score-Activities of Daily Living (intraclass correlation coefficients = .43), Knee Self-Efficacy Scale-Sport (intraclass correlation coefficients = .46), and Balance Error Scoring System eyes closed (firm and foam), which demonstrated poor reliability.</p><p><strong>Conclusion: </strong>Commonly utilized PROs and CBOs to measure treatment effectiveness acutely after ACLR and throughout rehabilitation had acceptable test-retest reliability. These measures should be used to determine the effectiveness of targeted intervention strategies to improve lingering impairments, limitations, and restrictions in people with a history of ACLR.</p>","PeriodicalId":50041,"journal":{"name":"Journal of Sport Rehabilitation","volume":" ","pages":"1-6"},"PeriodicalIF":1.3,"publicationDate":"2025-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144235788","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":"Is a Low-Cost Home Pulse Oximeter Helpful in Blood Flow Restriction Training?","authors":"Salvador Santiago-Pescador, Juan Martín-Hernández, José Pinto-Fraga, Susana López-Ortiz, Carlos Baladrón, Alejandro Lucía, Alejandro Santos-Lozano","doi":"10.1123/jsr.2024-0241","DOIUrl":"https://doi.org/10.1123/jsr.2024-0241","url":null,"abstract":"<p><strong>Objective: </strong>Confirm the validity of low-cost home pulse oximetry (POx) for determining arterial occlusion pressure (AOP) and compare blood flow (BF) responses to externally applied pressures.</p><p><strong>Design: </strong>Cross-sectional study.</p><p><strong>Methods: </strong>Forty-two subjects were recruited. AOP was registered with POx and a high-resolution Doppler ultrasound. Peak (anterograde peak blood flow velocity and retrograde peak blood flow velocity) and mean blood velocity and BF were assessed in 5 different externally applied pressures: 0%, 25%, 50%, 75%, and 90% of AOP in upper and lower limbs.</p><p><strong>Results: </strong>Significant differences between POx and Doppler ultrasound were found (P < .001) in upper and lower limbs. In addition, the ability to identify AOP with POx was poor in both limbs (receiver operating characteristic curve: 0.644 and 0.477 in the upper and lower limbs, respectively). Moreover, BF in the upper limb decreased significantly in all conditions except 0% AOP (nonrestriction; P < .012); however, in the lower limb, BF decreased only in the 90% and 75% AOP condition (P = .010) compared with 0% AOP condition (P < .001). Thus, BF decreases in a nonlinear manner under relative externally applied pressures. Mean blood velocity decreased significantly in all conditions compared with 0% AOP (P < .05) in the upper limb, but in the lower limb, mean blood velocity was higher in the 90% AOP condition than in the 25% AOP condition (P = .008).</p><p><strong>Conclusions: </strong>The results suggest that a low-cost home POx is not a useful device for estimating AOP. Furthermore, BF does not decrease linearly with the application of relative external pressure in the upper and lower limbs.</p>","PeriodicalId":50041,"journal":{"name":"Journal of Sport Rehabilitation","volume":" ","pages":"1-7"},"PeriodicalIF":1.3,"publicationDate":"2025-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144235773","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":"Preseason Range-of-Motion and Motor-Performance Asymmetries in Elite Male Youth Soccer Players in Spain.","authors":"Luis Llurda-Almuzara, Jason Moran, Noé Labata-Lezaun, Albert Pérez-Bellmunt, Ramón Aiguadé-Aiguadé, Nicholas C Clark","doi":"10.1123/jsr.2024-0223","DOIUrl":"https://doi.org/10.1123/jsr.2024-0223","url":null,"abstract":"<p><strong>Context: </strong>Side-to-side differences of lower limb range of motion and motor performance may predispose athletes to injury. Previous research has investigated side-to-side asymmetries among adult soccer players, but there is limited evidence for youth players particularly during preseason. The purpose of this study was to perform preseason side-to-side symmetry analyses using the anterior reach test, hip active internal (IR)/external rotation (ER), active knee extension (AKE), weight-bearing lunge test (WBLT), drop hop (DH), and single hop for distance.</p><p><strong>Design: </strong>Cross-sectional study.</p><p><strong>Methods: </strong>Sixty-nine male elite soccer players (age: 16.8 [0.9] y, height: 176.0 [6.8] cm, mass: 67.9 [6.4] kg) participated in the study. The anterior reach test, IR/ER, AKE, WBLT, DH, and single hop for distance tests were performed the first day of the preseason. The analysis included side-to-side group- (Bonferroni-corrected significance tests, effect sizes [Wilcoxon r]) and individual-level comparisons (absolute asymmetry [as percentage]). Limb symmetry indices were calculated and clinically significant absolute asymmetry defined (>10%). Clinically significant absolute asymmetry overall prevalence (as percentage) and side prevalence (as percentage) was computed for each measure.</p><p><strong>Results: </strong>Side-to-side significant differences existed for hip IR (P = .005, Wilcoxon r = .40). The overall prevalence of clinically significant absolute asymmetries for anterior reach test, hip IR, hip ER, AKE, WBLT, DH, and single hop for distance was 20.3%, 66.7%, 37.7%, 71.0%, 39.1%, 36.2%, and 5.8%, respectively.</p><p><strong>Conclusions: </strong>Group-level analysis found statistically significant side-to-side differences in hip IR only. Individual-level analysis revealed many players had clinically significant asymmetries in hip IR, hip ER, AKE, WBLT, and DH reactive strength index.</p>","PeriodicalId":50041,"journal":{"name":"Journal of Sport Rehabilitation","volume":" ","pages":"1-9"},"PeriodicalIF":1.3,"publicationDate":"2025-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144235787","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":"Hip Strength and Activation in Individuals With Ankle Instability During the Single-Leg Squat Test.","authors":"Lindsay A Carroll, Benjamin R Kivlan, RobRoy L Martin, Amy L Phelps, Christopher Carcia","doi":"10.1123/jsr.2024-0360","DOIUrl":"https://doi.org/10.1123/jsr.2024-0360","url":null,"abstract":"<p><strong>Context: </strong>Hip muscle function has been reported to be altered in individuals with chronic ankle instability (CAI). The purpose of this study was to determine whether the single-leg squat test (SLST) could be used to detect differences in proximal muscle activation between individuals with and without CAI and to determine if there were differences in strength of the hip lateral rotators, extensors, and abductors between individuals with and without CAI.</p><p><strong>Design: </strong>A case-control study design was used to compare hip muscle activation and strength during the SLST between individuals with CAI, lateral ankle sprain copers, and healthy controls.</p><p><strong>Methods: </strong>Forty-eight participants (14 males, 34 females; median age = 22.00 y) participated in this study. Participants were separated into CAI (n = 18), coper (n = 15), and control (n = 15) groups based on published criteria. Surface electromyography was used to measure muscle activation of the gluteus maximus and gluteus medius during the SLST. Strength of the hip lateral rotators, extensors, and abductors was measured using handheld dynamometry and quantified using maximum isometric body weight normalized torque.</p><p><strong>Results: </strong>The CAI group utilized significantly more gluteus maximus muscle activation during the SLST than both the coper (P < .001) and control (P < .001) groups. The CAI group had weaker hip lateral rotators when compared with the coper (P = .001) and control (P < .001) groups, and weaker hip extensors strength when compared with the control group (P < .001).</p><p><strong>Conclusion: </strong>The results support existing literature demonstrating that there are proximal neuromuscular changes in individuals with CAI and suggest that the SLST has potential for use as a clinical measure of gluteus maximus activation in individuals with CAI. Further study is needed to determine whether the differences in activation are clinically detectable.</p>","PeriodicalId":50041,"journal":{"name":"Journal of Sport Rehabilitation","volume":" ","pages":"1-8"},"PeriodicalIF":1.3,"publicationDate":"2025-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144227402","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}