{"title":"Higher Eccentric Hamstring Muscle Fatigue After Participation in a Soccer Match in Young Female Athletes.","authors":"Sebastiano Nutarelli, Jacopo Emanuele Rocchi, Manuela Salerno, Alessandro Sangiorgio, Luca Deabate, Giuseppe Filardo","doi":"10.1177/19417381241230613","DOIUrl":"10.1177/19417381241230613","url":null,"abstract":"<p><strong>Background: </strong>Hamstring (HS) strength deficits and imbalances have been identified as risk factors for sustaining anterior cruciate ligament (ACL) injuries and muscular strains, with HS injuries being the most prevalent muscle injuries in soccer athletes. The aim of this study was to investigate HS eccentric strength before and after a soccer match in both male and female soccer athletes.</p><p><strong>Hypothesis: </strong>Soccer athletes have changes in eccentric HS strength after a soccer game.</p><p><strong>Study design: </strong>Cohort observational study.</p><p><strong>Level of evidence: </strong>Level 3.</p><p><strong>Methods: </strong>HS eccentric strength (mean and absolute peak torque and total work) was measured in 64 healthy male and female competitive football athletes (14-25 years) with an automatic device during the execution of the Nordic hamstring exercise (NHE) test before and after a 90-minute soccer match. The anterior-knee laxity (AKL) was quantified with an arthrometer.</p><p><strong>Results: </strong>Mean and absolute eccentric HS peak torque decreased by 24.5 N.m (-12.34%; <i>P</i> < 0.01) and 21.9 N.m (-10.08%; <i>P</i> < 0.01) in female athletes, whereas their male peers improved by 19.9 N.m (+9.01%; <i>P</i> = 0.01) and by 20.9 N.m (+8.51%; <i>P</i> = 0.02), respectively. HS total work in female athletes decreased by 831.1 J (<i>P</i> < 0.01) compared with the male athlete reduction of 235.3 J. Both the pre- versus postmatch intersex mean and absolute eccentric HS peak torque changes were significant (<i>P</i> < 0.01), as were the changes in HS total work (<i>P</i> < 0.01). The pre- versus postmatch AKL difference and the dominant versus nondominant limb comparison of the strength parameters were not significantly different. Younger female athletes (14-19 years old) presented a greater decrease in mean and absolute peak HS eccentric strength compared with those in older female athletes and men.</p><p><strong>Conclusion: </strong>HS eccentric strength and work differ based on athlete sex, as measured by the NHE test. Mean peak, absolute peak, and total work showed greater reductions in female athletes than those in their male peers. The subgroup of 14- to 19-year-old female athletes experienced the highest reduction in strength parameters.</p>","PeriodicalId":54276,"journal":{"name":"Sports Health-A Multidisciplinary Approach","volume":" ","pages":"903-912"},"PeriodicalIF":2.7,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11531026/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139974565","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Sex Differences in Knee Extensor Neuromuscular Function in Individuals With and Without Patellofemoral Pain.","authors":"Sungwan Kim, Neal R Glaviano, Jihong Park","doi":"10.1177/19417381231209318","DOIUrl":"10.1177/19417381231209318","url":null,"abstract":"<p><strong>Background: </strong>Impaired knee extensor neuromuscular function has been frequently observed in individuals with patellofemoral pain (PFP); however, few researchers have aimed to understand the influence of sex on knee extensor neuromuscular function in this pathological population. The authors aimed to determine whether there are differences in knee extensor neuromuscular function between sexes in individuals with and without PFP.</p><p><strong>Hypothesis: </strong>Women with PFP would exhibit greater deficits in knee extensor neuromuscular function than men with PFP, compared with sex-matched individuals without PFP.</p><p><strong>Study design: </strong>Cross-sectional, case-control study.</p><p><strong>Level of evidence: </strong>Level 4.</p><p><strong>Methods: </strong>A total of 110 individuals were classified into 4 groups: women with PFP (n = 25); men with PFP (n = 30); women without PFP (n = 25); and men without PFP (n = 30). Knee extensor strength (isometric peak torque [PT]), activation (central activation ratio), early, late, and total phase rate of torque development (RTD<sub>0-100</sub>, RTD<sub>100-200</sub>, and RTD<sub>20-80%</sub>), and endurance (isokinetic average PT) were assessed using an isokinetic dynamometer. Group differences were assessed using a 2-way multivariate analysis of variance (sex by PFP).</p><p><strong>Results: </strong>Both women and men with PFP exhibited lower knee extensor strength, activation, early, late, and total phase RTD, and endurance versus sex-matched individuals without PFP (<i>P</i> < 0.05 for all comparisons). Women with PFP exhibited lower early phase (7.91 ± 2.02 versus 9.78 ± 2.43 N·m/s/kg; <i>P</i> < 0.01; Cohen <i>d</i> = 0.83), late phase (5.34 ± 1.02 versus 7.28±2.28 N·m/s/kg; <i>P</i> < 0.01; Cohen <i>d</i> = 1.37), and total phase (7.40 ± 2.57 versus 8.72 ± 2.57 N·m/s/kg; <i>P</i> = 0.03; Cohen <i>d</i> = 0.51) RTD than men with PFP.</p><p><strong>Conclusion: </strong>Compared with sex-matched pain-free individuals, women with PFP displayed lower RTD than men with PFP. Clinicians should note that among individuals with PFP, women are more likely to experience a greater impairment in their knee extensor torque-generating capacity than men.</p><p><strong>Clinical relevance: </strong>Additional treatment strategies that effectively improve the ability to rapidly generate torque should be developed and implemented, especially when treating women with PFP.</p>","PeriodicalId":54276,"journal":{"name":"Sports Health-A Multidisciplinary Approach","volume":" ","pages":"1000-1008"},"PeriodicalIF":4.6,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11531066/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136400250","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Marketing of Unproven and Unapproved Regenerative Medicine Therapy From the Perspective of Developing Countries.","authors":"Arben Boshnjaku, Ermira Krasniqi","doi":"10.1177/19417381241287764","DOIUrl":"10.1177/19417381241287764","url":null,"abstract":"","PeriodicalId":54276,"journal":{"name":"Sports Health-A Multidisciplinary Approach","volume":"16 6","pages":"875"},"PeriodicalIF":2.7,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11531015/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142559443","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Alberto Bermejo-Cantarero, Mairena Sánchez-López, Celia Álvarez-Bueno, Andres Redondo-Tébar, Antonio García-Hermoso, Vicente Martínez-Vizcaino
{"title":"Are Physical Activity Interventions Effective in Improving Health-Related Quality of Life in Children and Adolescents? A Systematic Review and Meta-Analysis.","authors":"Alberto Bermejo-Cantarero, Mairena Sánchez-López, Celia Álvarez-Bueno, Andres Redondo-Tébar, Antonio García-Hermoso, Vicente Martínez-Vizcaino","doi":"10.1177/19417381231190885","DOIUrl":"10.1177/19417381231190885","url":null,"abstract":"<p><strong>Context: </strong>Physical activity (PA) interventions improve well-being and positive mental health in children and adolescents, but the results of previous systematic reviews included participants with chronic medical conditions and did not accurately assess the multidimensional nature of health-related quality of life (HRQoL).</p><p><strong>Objective: </strong>The aims of this meta-analysis were to (1) evaluate the effects of PA interventions on several domains of HRQoL in healthy <18-year-olds and (2) examine the effectiveness of interventions on HRQoL according to whether they were successful in increasing PA, the type of intervention delivered, and the duration of the intervention.</p><p><strong>Data sources: </strong>PubMed (Medline), EMBASE, the Cochrane Library, SCIELO, SPORTDiscus, and PEDro databases were systematically searched from inception to September 30, 2022.</p><p><strong>Study selection: </strong>Experimental studies that examined the effectiveness of PA interventions on HRQoL participants aged <18 years.</p><p><strong>Study design: </strong>Systematic review with meta-analysis and meta-regression.</p><p><strong>Level of evidence: </strong>Level 1.</p><p><strong>Methods: </strong>Random-effects models were used to calculate pooled effect size (ES) for total HRQoL score and its dimensions. Subgroup analyses were conducted to examine the effect of PA program characteristics.</p><p><strong>Results: </strong>A total of 17 studies were included. Pooled ES (95% CI) estimations were as follows: 0.179 (0.045, 0.002) for total HRQoL score, 0.192 (0.077, 0.306) for physical well-being, 0.158 (0.080, 0.237) for psychological well-being, 0.118 (0.044, 0.192) for autonomy and parent relation, 0.135 (0.043, 0.227) for social support and peers, and 0.129 (-0.013, 0.270) for school environment. Subgroup analyses suggested there were no differences in the effectiveness of the interventions by category of PA increase or by type and duration of intervention.</p><p><strong>Conclusion: </strong>Exercise interventions are an effective strategy for improving overall HRQoL and its most significant domains in children and adolescents.</p>","PeriodicalId":54276,"journal":{"name":"Sports Health-A Multidisciplinary Approach","volume":" ","pages":"877-885"},"PeriodicalIF":2.7,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11531020/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10052212","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Marketing of Unproven and Unapproved Regenerative Medicine Therapy From the Perspective of Developing Countries: Response.","authors":"Scott A Rodeo","doi":"10.1177/19417381241287764a","DOIUrl":"10.1177/19417381241287764a","url":null,"abstract":"","PeriodicalId":54276,"journal":{"name":"Sports Health-A Multidisciplinary Approach","volume":"16 6","pages":"876"},"PeriodicalIF":2.7,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11531024/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142559444","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Connie Hsu, Brian Krabak, Brian Cunningham, Joanne Borg-Stein
{"title":"Swimming Anatomy and Lower Back Injuries in Competitive Swimmers: A Narrative Review.","authors":"Connie Hsu, Brian Krabak, Brian Cunningham, Joanne Borg-Stein","doi":"10.1177/19417381231225213","DOIUrl":"10.1177/19417381231225213","url":null,"abstract":"<p><strong>Context: </strong>Competitive swimmers are at high risk of overuse musculoskeletal injuries due to their high training volumes. Spine injuries are the second most common musculoskeletal injury in swimmers and are often a result of the combination of improper technique, high loads on the spine in strokes that require hyperextension, and repetitive overuse leading to fatigue of the supporting trunk muscles. The purpose of this review is to summarize the current evidence regarding swimming biomechanics, stroke techniques, and common injuries in the lumbar spine to promote a discussion on the prevention and rehabilitation of lower back injuries in competitive swimmers.</p><p><strong>Evidence acquisition: </strong>From a PUBMED/MEDLINE search, 16 articles were identified for inclusion using the search terms \"swimming,\" \"low back\" or \"lumbar,\" and \"injury\" or \"injuries.\"</p><p><strong>Study design: </strong>Narrative review.</p><p><strong>Level of evidence: </strong>Levels 4 and 5.</p><p><strong>Results: </strong>The trunk muscles are integral to swimming stroke biomechanics. In freestyle and backstroke, the body roll generated by the paraspinal and abdominal muscles is integral to efficient stroke mechanics by allowing synergistic movements of the upper and lower extremities. In butterfly and breaststroke, the undulating wave like motion of the dolphin kick requires dynamic engagement of the core to generate repetitive flexion and extension of the spine and is a common mechanism for hyperextension injuries. The most common lower back injuries in swimming were determined to be lumbar strain, spondylolysis and spondylolisthesis, facet joint pain, and disc disease. Most overuse swimming injuries can be treated conservatively with physical therapy and training adjustments.</p><p><strong>Conclusion: </strong>Managing swimmers with low back pain requires a basic knowledge of swimming technique and a focus on prevention-based care. Since most swimming injuries are secondary to overuse, it is important for providers to understand the mechanisms underlying the swimming injury, including an understanding of the biomechanics involved in swimming and the role of spine involvement in the 4 strokes that assist in stabilization and force generation in the water. Knowledge of the biomechanics involved in swimming and the significant demands placed on the spinal musculoskeletal system will aid the clinician in the diagnosis and management of injuries and assist in the development of a proper rehabilitation program aimed at correction of any abnormal swimming mechanics, treatment of pain, and future injury prevention.</p><p><strong>Strength of recommendations: </strong>B. Recommendation based on limited quality or inconsistent patient-oriented evidence.</p>","PeriodicalId":54276,"journal":{"name":"Sports Health-A Multidisciplinary Approach","volume":" ","pages":"971-981"},"PeriodicalIF":2.7,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11531034/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139541797","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Omair Kazi, Alexander B Alvero, Joshua Wright-Chisem, Shane J Nho
{"title":"Hip Pain in the Young Athlete: Femoroacetabular Impingement Syndrome.","authors":"Omair Kazi, Alexander B Alvero, Joshua Wright-Chisem, Shane J Nho","doi":"10.1177/19417381231223515","DOIUrl":"10.1177/19417381231223515","url":null,"abstract":"","PeriodicalId":54276,"journal":{"name":"Sports Health-A Multidisciplinary Approach","volume":" ","pages":"920-922"},"PeriodicalIF":2.7,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11531005/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139673660","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Sema Ozden, Ozge Ozalp, Rabia Tugba Kilic, Hayri Baran Yosmaoglu
{"title":"Effects of Delayed-Onset Muscle Pain on Respiratory Muscle Function.","authors":"Sema Ozden, Ozge Ozalp, Rabia Tugba Kilic, Hayri Baran Yosmaoglu","doi":"10.1177/19417381231214776","DOIUrl":"10.1177/19417381231214776","url":null,"abstract":"<p><strong>Background: </strong>Delayed-onset muscle soreness (DOMS) has been widely examined in the peripheral muscles; however, studies showing the potential effects of DOMS on respiratory function are limited.</p><p><strong>Hypothesis: </strong>DOMS in trunk muscles has a negative effect on respiratory function parameters, respiratory muscle strength, respiratory muscle endurance, and exercise capacity.</p><p><strong>Study design: </strong>Prospective cohort study.</p><p><strong>Level of evidence: </strong>Level 2.</p><p><strong>Methods: </strong>In 24 healthy participants with a mean age of 21 ± 2 years, DOMS was induced for the trunk muscles with a load equal to 80% of the maximum repetitive voluntary contraction. Pulmonary function parameters, respiratory muscle strength and endurance, exercise capacity, pain, fatigue, and dyspnea perception severity were recorded before DOMS and at 24 and 48 hours after DOMS.</p><p><strong>Results: </strong>After DOMS, decreases were observed in respiratory function parameters, namely, forced vital capacity, forced expiratory volume in the first second, vital capacity, and 25% to 75% flow rate value of forced expiratory volume (25% to 75%) (<i>P</i> = 0.02, <i>P</i> = 0.02, <i>P</i> < 0.01, <i>P</i> = 0.01, respectively). Maximal inspiratory pressure and exercise capacity also decreased (<i>P</i> = 0.02, <i>P</i> < 0.01, respectively). No difference was observed between all 3 measurements of maximal expiratory pressure (MEP) and MEP% values (<i>P</i><sub>1</sub> = <i>P</i><sub>2</sub> = <i>P</i><sub>3</sub> ≥ 0.99). The results of the respiratory muscle endurance tests did not reveal a significant difference in terms of load and time in all 3 conditions (<i>P</i> > 0.05).</p><p><strong>Conclusion: </strong>After DOMS, there was a 4% to 7.5% decrease in respiratory function parameters, and a 6.6% decrease in respiratory muscle strength.</p><p><strong>Clinical relevance: </strong>The occurrence of DOMS before a competition can have a detrimental impact on pulmonary performance. Hence, it is imperative to consider this factor when devising training and exercise programs. In addition, the development of treatment protocols becomes crucial if DOMS arises.</p>","PeriodicalId":54276,"journal":{"name":"Sports Health-A Multidisciplinary Approach","volume":" ","pages":"942-949"},"PeriodicalIF":2.7,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11531019/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138809510","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Muyiwa Ifabiyi, Milin Patel, Dan Cohen, Nicole Simunovic, Olufemi R Ayeni
{"title":"Return-to-Sport Rates After Hip Arthroscopy for Femoroacetabular Impingement Syndrome in Flexibility Sports Athletes: A Systematic Review.","authors":"Muyiwa Ifabiyi, Milin Patel, Dan Cohen, Nicole Simunovic, Olufemi R Ayeni","doi":"10.1177/19417381231217503","DOIUrl":"10.1177/19417381231217503","url":null,"abstract":"<p><strong>Context: </strong>Femoroacetabular impingement syndrome (FAIS) is a common cause of hip pain in young adults. Flexibility athletes represent an interesting subset due to the extreme range of motion requirements of their sport.</p><p><strong>Objective: </strong>The objective of this review was to provide a summary of the outcomes of hip arthroscopy for FAIS in patients who participate in flexibility sports.</p><p><strong>Data sources: </strong>Three online databases (Medline, Embase, and PubMed) were searched from database inception (1946, 1974, and 1966, respectively) to January 10, 2023.</p><p><strong>Study selection: </strong>Studies were screened for literature addressing surgical outcomes for flexibility athletes undergoing hip arthroscopy for FAIS.</p><p><strong>Study design: </strong>Systematic review.</p><p><strong>Level of evidence: </strong>Level 4.</p><p><strong>Data extraction: </strong>Various patient-reported outcomes that evaluated the efficacy of hip arthroscopy in this patient population were abstracted and presented in descriptive and analytical format. Abstraction was performed by 2 reviewers.</p><p><strong>Results: </strong>Overall, a total of 8 Level 3 or 4 studies and 295 patients (312 hips) were included in this review. The pooled standardized mean differences for the Visual Analog Scale for pain score, Modified Harris Hip Score, Hip Outcome Score - Activity of Daily Living scale, and Hip Outcome Score - Sport-Specific Subscale all demonstrated significant improvement after undergoing arthroscopy for FAIS between 12 and 116 months (N = 175, -1.97, 95% CI -2.5 to -1.4, <i>P</i> < 0.01, <i>I</i><sup>2</sup> = 76%; N = 211, 1.82, 95% CI 1.49 to 2.16, <i>P</i> < 0.01, <i>I</i><sup>2</sup> = 52%; N = 164, 1.75, 95% CI 1.42 to 2.05, <i>P</i> < 0.01, <i>I</i><sup>2</sup> = 28%; N = 211, 1.71, 95% CI 1.38 to 2.04, <i>P</i> < 0.01, <i>I</i><sup>2</sup> = 52%, respectively). Across 289 patients, 75.6% to 98% returned to sport at a similar or higher level than presurgery.</p><p><strong>Conclusion: </strong>This review demonstrates a trend of improvement in patient-reported pain, function, quality of life, and return to sport at a minimum of 12 months among flexibility athletes after hip arthroscopy to treat FAIS.</p>","PeriodicalId":54276,"journal":{"name":"Sports Health-A Multidisciplinary Approach","volume":" ","pages":"982-990"},"PeriodicalIF":2.7,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11531010/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139049779","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}