Physical Therapy in Sport最新文献

{"title":"Immediate effects of local muscle vibration on static and dynamic balance control in individuals with chronic ankle instability","authors":"Amir Hossein Jamshidi ,&nbsp;Razieh Mofateh ,&nbsp;Neda Orakifar ,&nbsp;Maryam Seyedtabib ,&nbsp;Zahra Najarzadeh ,&nbsp;Amin Behdarvandan","doi":"10.1016/j.ptsp.2023.11.008","DOIUrl":"10.1016/j.ptsp.2023.11.008","url":null,"abstract":"<div><h3>Objectives</h3><p>To investigate the immediate effects of local muscle vibration (LMV) on static and dynamic balance control in individuals with and without chronic ankle instability (CAI).</p></div><div><h3>Design</h3><p>Quasi-experimental study.</p></div><div><h3>Setting</h3><p>Research laboratory.</p></div><div><h3>Participants</h3><p>Twenty-six individuals with CAI and 26 healthy controls.</p></div><div><h3>Main outcome measures</h3><p>Center of pressure variables (mean total velocity and displacement in anteroposterior (AP) and mediolateral (ML) directions) during single-leg standing with eyes open and eyes closed and also reach distances in anterior (ANT), posteromedial (PM), and posterolateral (PL) directions of the modified star excursion balance test (MSEBT) were assessed before and after LMV.</p></div><div><h3>Results</h3><p>Statistical analyses showed a significant decrease in mean total velocity and displacement in AP direction from before to after LMV in eyes open condition for both individuals with CAI (<em>p</em> = 0.025, <em>p</em> = 0.041, respectively) and healthy controls (<em>p</em> = 0.001, <em>p</em> = 0.003, respectively). Similar results were observed in eyes closed condition for both individuals with CAI (<em>p</em> &lt; 0.001, <em>p</em> &lt; 0.001, respectively) and healthy controls (<em>p</em> = 0.040, <em>p</em> = 0.014, respectively). The results also showed increased reach distances in ANT (p &lt; 0.001), PM (p &lt; 0.001), and PL directions (p &lt; 0.001) in all participants after LMV.</p></div><div><h3>Conclusion</h3><p>Our results suggest that LMV may be a useful tool in rehabilitation of static and dynamic balance deficits in individuals with CAI.</p></div>","PeriodicalId":49698,"journal":{"name":"Physical Therapy in Sport","volume":"65 ","pages":"Pages 113-121"},"PeriodicalIF":2.4,"publicationDate":"2023-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138581298","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":"Clinical outcomes for various benign paroxysmal positional vertigo (BPPV) diagnoses in adolescents and young adults with recent concussions","authors":"Thomas G. Bowman ,&nbsp;Rachel Thibault ,&nbsp;Benjamin M. Radack ,&nbsp;Anissa Davis ,&nbsp;Penelope Elam","doi":"10.1016/j.ptsp.2023.12.004","DOIUrl":"10.1016/j.ptsp.2023.12.004","url":null,"abstract":"<div><h3>Objective</h3><p>Determine how positive BPPV<span> findings in adolescents and young adults following concussion impacted the total number of treatments required and time until discharge.</span></p></div><div><h3>Setting</h3><p>Outpatient physical therapy clinic.</p></div><div><h3>Participants</h3><p>167 individuals who were diagnosed with concussion or brain injury.</p></div><div><h3>Design</h3><p>Retrospective chart review.</p></div><div><h3>Main measures</h3><p>Total number of treatments and days until discharge were compared for various BPPV diagnoses (anterior canal, posterior canal, horizontal canal, and combination) and for individuals with and without BPPV.</p></div><div><h3>Results</h3><p>Fifty-one out of 167 cases (30.54%) were diagnosed with BPPV. The total number of treatments provided was statistically different across BPPV diagnoses (<em>P</em> = .004). However, days until discharge were not statistically different between BPPV diagnoses (<em>P</em> = .28). There was no significant difference between time to discharge between those with BPPV (median = 21 days, range = 7–126) and those without (median = 28 days, range = 7–84 days; <em>P</em> = .23, r = 0.09).</p></div><div><h3>Conclusion</h3><p><span>To optimize outcomes, including symptom resolution and return to sport and/or work, early identification of BPPV and subsequent intervention should be prioritized for individuals who have concussion symptoms that suggest </span>vestibular dysfunction.</p></div>","PeriodicalId":49698,"journal":{"name":"Physical Therapy in Sport","volume":"65 ","pages":"Pages 90-94"},"PeriodicalIF":2.4,"publicationDate":"2023-12-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138581643","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 association between lateral hip muscle size/intramuscular fat infiltration and hip strength in active young adults with long standing hip/groin pain","authors":"Zuzana Perraton ,&nbsp;Andrea B. Mosler ,&nbsp;Peter R. Lawrenson ,&nbsp;Kenneth Weber II ,&nbsp;James M. Elliott ,&nbsp;Evert O. Wesselink ,&nbsp;Kay M. Crossley ,&nbsp;Joanne L. Kemp ,&nbsp;Christopher Stewart ,&nbsp;Michael Girdwood ,&nbsp;Matthew G. King ,&nbsp;Joshua J. Heerey ,&nbsp;Mark J. Scholes ,&nbsp;Benjamin F. Mentiplay ,&nbsp;Adam I. Semciw","doi":"10.1016/j.ptsp.2023.11.007","DOIUrl":"10.1016/j.ptsp.2023.11.007","url":null,"abstract":"<div><h3>Objectives</h3><p>To investigate associations between lateral hip muscle size/intramuscular fat infiltration (MFI) and hip strength in active young adults with longstanding hip/groin pain.</p></div><div><h3>Design</h3><p>Cross-sectional study.</p></div><div><h3>Setting</h3><p>University/Clinical.</p></div><div><h3>Participants</h3><p>Sub-elite soccer and Australian Football players (n = 180; 37 female) with long standing hip/groin pain.</p></div><div><h3>Main outcome measures</h3><p>Muscle size (volume) and MFI of gluteus maximus, medius, and minimis, and tensor fascia latae (TFL) were assessed using magnetic resonance imaging. Isometric hip strength was measured with handheld dynamometry. Associations between muscle size/MFI were assessed using linear regression models, adjusted for body mass index and age, with sex-specific interactions.</p></div><div><h3>Results</h3><p>Positive associations were identified between lateral hip muscle volume and hip muscle strength, particularly for gluteus maximus and gluteus minimus volume. For all muscles, hip abduction was associated with an increase in strength by up to 0.69 N (R² ranging from 0.29 to 0.39). These relationships were consistent across sexes with no sex interactions observed. No associations were found between MFI and strength measures.</p></div><div><h3>Conclusion</h3><p>Greater lateral hip muscle volumes are associated with greater hip strength in active young adults with long standing hip/groin pain, irrespective of sex. Gluteus maximus and minimus volume showed the most consistent relationships with hip strength across multiple directions.</p></div>","PeriodicalId":49698,"journal":{"name":"Physical Therapy in Sport","volume":"65 ","pages":"Pages 95-101"},"PeriodicalIF":2.4,"publicationDate":"2023-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1466853X23001463/pdfft?md5=66fd2274937feff49a107586566f4806&pid=1-s2.0-S1466853X23001463-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138529340","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":"Lumbopelvic movement control in powerlifters with and without low back pain","authors":"Hampus Larsson,&nbsp;Edit Strömbäck,&nbsp;Mikael Schau,&nbsp;Susanna Johansson,&nbsp;Lars Berglund","doi":"10.1016/j.ptsp.2023.11.006","DOIUrl":"10.1016/j.ptsp.2023.11.006","url":null,"abstract":"<div><h3>Objectives</h3><p>To measure lumbopelvic movement control in powerlifters with and without low back pain (LBP).</p></div><div><h3>Design</h3><p>Quantitative Cross-sectional.</p></div><div><h3>Participants</h3><p>Twelve powerlifters with LBP and 28 powerlifters without LBP.</p></div><div><h3>Setting</h3><p>Powerlifters were recruited in nine different cities and filmed while performing a movement control test battery.</p></div><div><h3>Main outcome measures</h3><p>Lumbopelvic movement control test battery consisting of seven tests, with a possible score between 0 and 13. The tests were rated by a physical therapist blinded to the group allocation and comparisons of the frequency of current/incorrect tests between groups were calculated.</p></div><div><h3>Results</h3><p>There was no statistically significant difference in the movement control test battery between the powerlifters with LBP (Median = 7.0, (2–11)) and powerlifters without LBP (Median = 6.0, (1–10)) (P = 0.59). There were no statistically significant differences between groups when the individual movement control tests were analyzed separately.</p></div><div><h3>Conclusions</h3><p>The lack of significant differences between groups indicates that performance in lumbopelvic movement control test might not be associated with LBP in powerlifters. More studies on associations between LBP and movement control and other body functions are needed to guide assessment and treatment of powerlifters with LBP and for investigation of possible risk factors for LBP in powerlifters.</p></div>","PeriodicalId":49698,"journal":{"name":"Physical Therapy in Sport","volume":"65 ","pages":"Pages 74-82"},"PeriodicalIF":2.4,"publicationDate":"2023-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1466853X23001451/pdfft?md5=363b10dd98f7ee8998bfb02acfa95e5a&pid=1-s2.0-S1466853X23001451-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138529345","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":"Early intervention treatment in the first 2 weeks following concussion in adults: A systematic review of randomised controlled trials","authors":"Sonya Moore ,&nbsp;Chris Musgrave ,&nbsp;Jonathan Sandler ,&nbsp;Ben Bradley ,&nbsp;Jennifer R.A. Jones","doi":"10.1016/j.ptsp.2023.11.005","DOIUrl":"10.1016/j.ptsp.2023.11.005","url":null,"abstract":"<div><h3>Objective</h3><p>International guidelines support a repertoire of therapeutic interventions that may assist recovery following concussion. We aimed to systematically review the efficacy of early pharmacological and non-pharmacological interventions initiated within two weeks of injury on symptoms and functional recovery of adults with concussion.</p></div><div><h3>Methods</h3><p>We conducted a Systematic Review (SR) of Randomised Controlled Trials (RCTs) without meta-analysis utilising the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. A comprehensive search was performed of four databases. Study inclusion criteria were adult participants diagnosed with concussion and commencing active intervention within 14 days of injury.</p></div><div><h3>Results and conclusions</h3><p>Of 7531 studies identified, 11 were included in the final review. Six studies were rated as high-risk of bias, three with some concerns and two as low-risk of bias. We found no evidence to support specific pharmacotherapeutic management to hasten the natural recovery time-course. Two studies reported significant improvement in selected concussion symptoms following manual therapy (at 48–72 hours post-treatment) or telephone counselling interventions (at 6 months post-injury). No high quality RCTs demonstrate superior effects of early therapeutic interventions on concussion recovery in the first 2 weeks. We advocate future research to examine impacts of health-clinician contact points aligned with symptom-specific interventions.</p></div>","PeriodicalId":49698,"journal":{"name":"Physical Therapy in Sport","volume":"65 ","pages":"Pages 59-73"},"PeriodicalIF":2.4,"publicationDate":"2023-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1466853X2300144X/pdfft?md5=994c056bf897e81c2de775f727c33c43&pid=1-s2.0-S1466853X2300144X-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138529338","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":"Balance test results in different hormonal statuses of the menstruation cycle. Are females more susceptible to lower extremities injuries on different days of their menstruation cycles?","authors":"Masoumeh Baghban Baghdadabad ,&nbsp;Shahram Mohaghegh","doi":"10.1016/j.ptsp.2023.11.003","DOIUrl":"https://doi.org/10.1016/j.ptsp.2023.11.003","url":null,"abstract":"<div><h3>Background</h3><p>The Star Excursion Balance Test (SEBT) and its modification(mSEBT) as dynamic tests have been shown to have high reliability and validity for the prediction of lower extremities injuries including ACL<span><span> ones. No previous study has compared mSEBT performance measures in different hormonal statuses of the menstrual cycle in naturally menstruating women. So aim of the study was comparison of mSEBT performance measures in days of the menstruation cycle with the peak of estrogen and </span>progesterone hormones in naturally menstruating women.</span></p></div><div><h3>Methods</h3><p>After a pilot study for estimation of sample size, mSEBT performance measures in a sample of 18 healthy women with regular menstrual cycles were compared two times in their cycles, first in the peak of estrogen (mid-cycle) and second in time of peak of progesterone (one week later). The test was performed 2 times using either the right or left leg as the stance and reach limb.</p></div><div><h3>Findings</h3><p>No significant difference between days with estrogen and progesterone peaks with right or left reach limb was seen for the percentage of reach in any direction or the composite reach on the mSEBT performance.</p></div><div><h3>Conclusion</h3><p>It seems that there is the same risk for lower extremities injuries in estradiol and progesterone peak days of normal menstruating women.</p></div>","PeriodicalId":49698,"journal":{"name":"Physical Therapy in Sport","volume":"65 ","pages":"Pages 54-58"},"PeriodicalIF":2.4,"publicationDate":"2023-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138475054","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":"Balance, strength and physical activity after ankle sprain: Comparison between children with chronic ankle instability and copers","authors":"Thitirat Suphasubtrakul,&nbsp;Raweewan Lekskulchai,&nbsp;Chutima Jalayondeja","doi":"10.1016/j.ptsp.2023.11.004","DOIUrl":"https://doi.org/10.1016/j.ptsp.2023.11.004","url":null,"abstract":"<div><h3>Objective</h3><p>The aim of this study was to compare muscle strength, balance, and physical activity between children with chronic ankle instability and copers.</p></div><div><h3>Design</h3><p>Cross-sectional study.</p></div><div><h3>Setting</h3><p>Pediatric Physical Therapy laboratory.</p></div><div><h3>Participants</h3><p>Children aged between 7 and 12 years old from regular schools who had a history of unilateral ankle sprain.</p></div><div><h3>Main outcome measures</h3><p>Lower extremity strength, Static and dynamic standing balance, and Level of physical activity.</p></div><div><h3>Results</h3><p>Fifteen children with chronic ankle instability and 15 copers were recruited. Demographic data showed no differences between group except for sex and the Cumberland Ankle Instability Tool-Youth (CAITY) score. Children with CAI had a significantly lower score during the standing long jump test (p &lt; 0.05), poorer performance of single leg stance test (p &lt; 0.001) and Y-Balance test in the anterior, posteromedial, and posterolateral directions (p &lt; 0.05) when compared to copers. Total METs per week was significantly higher in the copers (p &lt; 0.05).</p></div><div><h3>Conclusion</h3><p>Children with chronic ankle instability exhibited weaker lower limb strength, poorer static and dynamic standing balance, and participate in less physical activity compared to those in a coper group which may have future negative health consequences. Knowledge about the differences between the two groups may provide guidance for physical educators and physical therapists. (200 words)</p></div>","PeriodicalId":49698,"journal":{"name":"Physical Therapy in Sport","volume":"65 ","pages":"Pages 49-53"},"PeriodicalIF":2.4,"publicationDate":"2023-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1466853X23001438/pdfft?md5=a4e26a9b779a9cdf998a45664a07ad80&pid=1-s2.0-S1466853X23001438-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138437891","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":"Criteria-based return to sport testing after open Latarjet reveals residual deficits and can be utilized for sports clearance with excellent outcomes at mean 3.6 year follow-up: A small case series of competitive athletes","authors":"Rajiv P. Reddy,&nbsp;Matthew Como,&nbsp;Shaquille Charles,&nbsp;Zachary J. Herman,&nbsp;Ehab M. Nazzal,&nbsp;Christopher J. Como,&nbsp;Anya Singh-Varma,&nbsp;Alex Fails,&nbsp;Adam Popchak,&nbsp;Albert Lin","doi":"10.1016/j.ptsp.2023.11.002","DOIUrl":"10.1016/j.ptsp.2023.11.002","url":null,"abstract":"<div><h3>Objective</h3><p>The purpose of this study was to assess the use of a criteria-based return to sport (CBRTS) test to evaluate readiness for return to play (RTP) in competitive athletes that underwent open Latarjet.</p></div><div><h3>Design</h3><p>Retrospective case series.</p></div><div><h3>Methods</h3><p>Ten competitive athletes (mean age 19.9 years) treated with open Latarjet for recurrent glenohumeral instability underwent CBRTS testing at a mean of 5.3 months postoperatively. Testing consisted of four components: 1. isometric strength, 2. isokinetic strength, 3. endurance, and 4. function. Patients failing 0 or 1 component of the test were cleared to RTP. Patients failing multiple components underwent additional deficit-based rehabilitation.</p></div><div><h3>Results</h3><p>Of the 10 patients that tested, 4 passed their overall CBRTS test and were cleared to RTP. The remaining 6 patients failed the overall CBRTS test. Seven patients (70%) failed at least one section of the strength testing, two patients (20%) failed endurance testing, and two patients (20%) failed functional testing. At final follow-up (mean 3.6 years), 1 patient had recurrent instability (10%) and 9 patients returned to play (90%).</p></div><div><h3>Conclusions</h3><p>CBRTS testing may be clinically useful for return to play clearance decisions after open Latarjet procedure, as it can reveal deficits that may not be identified with time-based clearance alone.</p></div>","PeriodicalId":49698,"journal":{"name":"Physical Therapy in Sport","volume":"65 ","pages":"Pages 23-29"},"PeriodicalIF":2.4,"publicationDate":"2023-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138300872","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":"Developing the Singapore youth shoulder overuse injury prevention program","authors":"Rachel Lau,&nbsp;Swarup Mukherjee","doi":"10.1016/j.ptsp.2023.11.001","DOIUrl":"https://doi.org/10.1016/j.ptsp.2023.11.001","url":null,"abstract":"<div><h3>Objectives</h3><p>To develop the Singapore Youth Shoulder Overuse Injury Prevention Program specifically for competitive overhead youth athletes in Singapore.</p></div><div><h3>Design</h3><p>Two-round online Delphi technique with experts and a feasibility assessment questionnaire with youth athletes who represented end-users.</p></div><div><h3>Setting</h3><p>Volleyball for youth athletes.</p></div><div><h3>Participants</h3><p>Experts were recruited through purposive sampling based on their knowledge and experience. Youth athletes were recruited though a volleyball club.</p></div><div><h3>Main outcome measures</h3><p>The main outcome measure was the level of consensus on the proposed (1) exercise program for the overhead youth athletes, (2) education program regarding overuse injuries for coaches of overhead youth athletes, and (3) education program regarding overuse injuries for overhead youth athletes. Consensus was set at 75% agreement in this study.</p></div><div><h3>Results</h3><p>Eighteen experts completed the two Delphi rounds with 100% response rate. Consensus was achieved for the exercise program and both education programs. Twelve youth athletes completed the feasibility assessment questionnaire and found the exercises to be feasible in terms of usefulness, practical use, instructions, duration, and ease of execution.</p></div><div><h3>Conclusion</h3><p>Consensus was reached for the Singapore Youth Shoulder Overuse Injury Prevention Program, and feasibility of execution by end-users was successfully determined.</p></div>","PeriodicalId":49698,"journal":{"name":"Physical Therapy in Sport","volume":"65 ","pages":"Pages 30-37"},"PeriodicalIF":2.4,"publicationDate":"2023-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138413109","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":"Influence of foot strike patterns and cadences on patellofemoral joint stress in male runners with patellofemoral pain","authors":"Zhen Wei ,&nbsp;Xihe Hou ,&nbsp;Yujie Qi ,&nbsp;Lin Wang","doi":"10.1016/j.ptsp.2023.10.006","DOIUrl":"10.1016/j.ptsp.2023.10.006","url":null,"abstract":"<div><h3>Objectives</h3><p>This study aimed to determine the effect of foot strike patterns and cadences in male runners with patellofemoral pain (PFP).</p></div><div><h3>Design</h3><p>Cross-sectional study.</p></div><div><h3>Setting</h3><p>Biomechanics lab.</p></div><div><h3>Methods</h3><p>20 male runners with PFP were instructed to randomly complete six running conditions (three cadence conditions in rearfoot strike pattern (RFS) or forefoot strike (FFS)) under a preferred running speed.</p></div><div><h3>Main outcome measures</h3><p>The primary outcomes were peak knee joint and moment, and secondary outcomes were patellofemoral joint stress.</p></div><div><h3>Results</h3><p>Running with increased cadence has a lower flexion angle (P = 0.027, η² = 0.45), lower extension moment (P = 0.011, η² = 0.29), lower internal rotation moment (P = 0.040, η² = 0.17), lower patellofemoral stress (P = 0.029, η² = 0.52) than preferred cadence. FFS running performed significantly lower flexion angle (P = 0.003, η² = 0.39), lower extension moment (P &lt; 0.001, η² = 0.91), lower adduction moment (P = 0.020, η² = 0.25) lower patellofemoral stress (P &lt; 0.001, η² = 0.81) than RFS running for all cadence.</p></div><div><h3>Conclusions</h3><p>Preliminary findings provide new perspectives for male runners with PFP to unload patellofemoral joint stress in managing PFP through the combination of the FFS pattern and increased cadence.</p></div>","PeriodicalId":49698,"journal":{"name":"Physical Therapy in Sport","volume":"65 ","pages":"Pages 1-6"},"PeriodicalIF":2.4,"publicationDate":"2023-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1466853X23001323/pdfft?md5=45285481c3240ff9e8db7f9b3148b0e6&pid=1-s2.0-S1466853X23001323-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135566888","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}