Sports Health-A Multidisciplinary Approach最新文献

{"title":"Correlation of King-Devick Test and Helmet Impact Exposures Over a Youth Football Season.","authors":"Jennifer R Maynard, Jeffrey P Nadwodny, Irvin S Haak, Kristina F DeMatas, Raul A Rosario-Concepcion, LaRae Seemann, George G A Pujalte","doi":"10.1177/19417381241309956","DOIUrl":"10.1177/19417381241309956","url":null,"abstract":"<p><strong>Background: </strong>The cumulative effect of repetitive subconcussive head impacts on neurocognitive function during youth contact sports remains largely unknown. There is a paucity of literature evaluating cumulative helmet forces over a season and their correlation with preseason and postseason cognitive performance tasks such as the King-Devick test (KDT).</p><p><strong>Hypothesis: </strong>Higher helmet forces recorded throughout a 10-week, 10-game youth football season would correlate with slower performance on postseason KDT.</p><p><strong>Study design: </strong>Prospective cohort study.</p><p><strong>Level of evidence: </strong>Level 3.</p><p><strong>Methods: </strong>A cohort of 58 youth football players (ages 9-13 years) underwent pre- and postseason KDT. Players wore SpeedFlex helmets (Riddell) fitted with InSite Impact Response System helmet accelerometers (Riddell) which recorded impacts of ≥15<i>g</i>. Head impacts were tallied over a season and assigned a score of 1, 2, or 3 based on magnitude of <i>g</i> forces. Suspected concussions were correlated with KDT times and recorded instances of head impact. Pre- and postseason KDT scores were compared.</p><p><strong>Results: </strong>During the season, 2013 head impacts were recorded. Median (range) total cumulative force score was 24 (5-476); 6 players sustained head impacts concerning for concussion, and 4 were clinically diagnosed with concussions. Overall, postseason KDT times improved compared with preseason, with a median (range) change of -4.8 seconds (-7.6, -1.1). Analysis showed no correlation between changes in KDT time and total cumulative force score over the season.</p><p><strong>Conclusion: </strong>KDT times in youth football players did not change significantly based on head impact exposure over a single youth football season; most players' KDT times improved from preseason to postseason.</p><p><strong>Clinical relevance: </strong>Although our study did not show significant cognitive impact as measured by KDT over a single youth football season, the long-term effects of concussion on the immature brain and how it can impact cognitive development remains largely unknown and should be an area of ongoing study.</p>","PeriodicalId":54276,"journal":{"name":"Sports Health-A Multidisciplinary Approach","volume":" ","pages":"657-665"},"PeriodicalIF":2.7,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11748126/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143016276","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":"Single-Task and Dual-Task Gait Performance After Sport-Related Concussion: A Machine Learning Statistical Approach.","authors":"Nicholas G Murray, Brian Szekely, Madison R Taylor, Kristen G Quigley, Joseph McCarley, Nora Constantino, Kumiko Hashida, Kaori Tamura","doi":"10.1177/19417381241264289","DOIUrl":"10.1177/19417381241264289","url":null,"abstract":"<p><strong>Background: </strong>This study evaluated 2 different dual-task (DT) conditions during tandem gait (TG) to predict sport-related concussion (SRC) diagnosis.</p><p><strong>Hypothesis: </strong>The best (fastest) single-task (ST) gait will differ between groups (controls vs SRC; baseline vs SRC), with auditory pure switching task (APST) response rate being the most important behavioral variable to aid prediction of SRC.</p><p><strong>Study design: </strong>Cohort design.</p><p><strong>Level of evidence: </strong>Level 3.</p><p><strong>Methods: </strong>A total of 409 National Collegiate Athletic Association Division I student-athlete controls and 21 team-physician-diagnosed SRC participated. All data were collected at preseason physicals (baseline) and within 7 days of injury for SRC. Each participant completed 3 conditions of TG in a pseudorandomized order: (1) ST, (2) DT with serial-7s (SS) subtractions, and (3) DT with APST. Outcomes of time-to-complete for TG and behavioral (eg, responses per second) for SS and APST were recorded for each trial.</p><p><strong>Results: </strong>ST Trials 2 (<i>P</i> = 0.03) and 3 (<i>P</i> = 0.01) were significantly different between controls and SRC. ST Trial 3 (<i>P</i> = 0.04) was significantly different between baseline and SRC. Average responses per second for APST were significantly different between- (<i>P</i> < 0.01) and within- (<i>P</i> = 0.01) group.</p><p><strong>Conclusion: </strong>The results suggest that ST is significantly slower after SRC. However, DT (both SS and APST) time-to-complete are also important variables when predicting the SRC diagnosis. It is advised that both ST and DT be administered when making clinical decisions regarding postural instability after SRC.</p><p><strong>Clinical relevance: </strong>The best ST TG time to complete gait is an important objective marker of concussion while DT paradigms, specifically SS and APST, are highly variable. DT may be more useful for clinical observable signs of SRC. Both SS and APST have unique usefulness, but APST response rate per second can be relied upon numerically for clinical decisions.</p>","PeriodicalId":54276,"journal":{"name":"Sports Health-A Multidisciplinary Approach","volume":" ","pages":"666-677"},"PeriodicalIF":2.7,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11569659/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141903527","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":"Effectiveness of Percutaneous Needle Tenotomy for Tendinopathies: A Systematic Review.","authors":"Logan Maag, Susan Linder, Loren Hackett, Matthew Mitchkash, Tyler Farley, Duncan Lamar, Nolan Fisher, Ben Burnham","doi":"10.1177/19417381241275659","DOIUrl":"10.1177/19417381241275659","url":null,"abstract":"<p><strong>Context: </strong>Tendinopathy is a disease state characterized by tendon disorder with pain or decreased function that can cause significant disability. Multiple treatment modalities exist; however, no single treatment is superior. Ultrasound-guided percutaneous needle tenotomy (PNT) and TENEX are emerging as promising treatment options for tendinopathy.</p><p><strong>Objective: </strong>To review the current literature of reported outcomes for PNT, TENEX, and TENJET, for the treatment of tendinopathy, including pain relief, change in function, and patient-reported outcomes.</p><p><strong>Data sources: </strong>A comprehensive search was conducted from database inception to September 2023 in Ovid Medline, Ovid Embase, and Cochrane Library.</p><p><strong>Study selection: </strong>Keywords and index terms related to tendon injury, ultrasound, and tenotomy were used in combination to identify relevant literature that included ultrasound-guidance, treatment of tendinopathy, and treatment with PNT, TENEX, or TENJET. Covidence Systematic Review Software used to screen for relevant studies. Only English-language studies were included.</p><p><strong>Study design: </strong>Systematic Review using PICO framework as defined and registered with the International Prospective Register of Systematic Reviews (PROSPERO ID CRD42022321307).</p><p><strong>Level of evidence: </strong>Level 4 (evidence from a systematic review graded to the lowest level of study included).</p><p><strong>Data extraction: </strong>Articles meeting the inclusion criteria were reviewed. Type and region of tendinopathy studied, outcome measures, and complications were recorded. Clinical and self-reported outcomes data were compared across studies.</p><p><strong>Results: </strong>A total of 10 studies, representing 11 tendon sites, were included. The studies overall report improvements in pain, function, and quality of life after undergoing PNT or TENEX, with minimal adverse effects. Mean risk of bias assessment scores were 8.35 out of 10 assessing internal and external validity for included studies.</p><p><strong>Conclusion: </strong>PNT and TENEX are safe, beneficial, and minimally invasive treatment option for patients, especially for conditions refractory to more conservative treatments options.</p>","PeriodicalId":54276,"journal":{"name":"Sports Health-A Multidisciplinary Approach","volume":" ","pages":"834-842"},"PeriodicalIF":2.7,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11569693/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142141766","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":"Association of Vitamin D Deficiency With Distal Biceps Injury: A Retrospective Analysis of 336,320 Patients.","authors":"Surya Khatri, J Alex Albright, Rory A Byrne, Matthew Quinn, Angela S Zhu, Paul-Hugo Arcand, Alan H Daniels, Brett D Owens","doi":"10.1177/19417381241273453","DOIUrl":"10.1177/19417381241273453","url":null,"abstract":"<p><strong>Background: </strong>This study explores the association between vitamin D deficiency and distal biceps tendon injuries, illustrating that, although vitamin D deficiency is associated with prolonged hospital stays and various musculoskeletal problems, its connection to distal biceps tendon injuries is unknown.</p><p><strong>Hypothesis: </strong>Vitamin D deficiency is associated with an elevated risk of distal biceps injury but not with increased rates of subsequent surgery or revision surgery.</p><p><strong>Study design: </strong>Case-control study.</p><p><strong>Level of evidence: </strong>Level 3.</p><p><strong>Methods: </strong>A 1:1 matched retrospective comparative study of 336,320 vitamin-D-deficient patients was performed using PearlDiver data (between January 1, 2011 and October 31, 2018). Cohorts, with a mean age of 55.7 ± 13.2 years, underwent multivariate logistic regression to calculate distal biceps tendon injury and surgical repair incidence according to age and sex, while controlling for demographics and comorbidities.</p><p><strong>Results: </strong>The 1-year incidence of distal biceps tendinopathy in vitamin-D-deficient patients was 118 per 100,000 person-years (95% CI) compared with 44.3 per 100,000 person-years in matched controls. Male patients with vitamin D deficiency were at a greater risk for distal biceps tendinopathy after 1 and 2 years (adjusted odds ratio [aOR] = 2.81, 2.08-3.83; aOR = 2.80, 2.21-3.56). Female patients were also at a greater risk after both years (aOR = 1.69, 1.27-2.27; aOR = 1.57, 1.26-1.96). Vitamin D deficiency was not associated with an elevated risk of surgical repair or revision surgery.</p><p><strong>Conclusion: </strong>In a nationwide cohort, a diagnosis of vitamin D deficiency elevated the risk of distal biceps tendinopathy but did not raise the rate of surgical repair or revision. As a result, prevention strategies in the form of vitamin supplementation should be increased for athletes.</p><p><strong>Clinical relevance: </strong>These findings emphasize the clinical relevance of monitoring vitamin D levels in patients at risk for musculoskeletal injuries, and providing adequate care to those involved in high-demand physical activities.</p><p><strong>Strength of recommendation: </strong>B.</p>","PeriodicalId":54276,"journal":{"name":"Sports Health-A Multidisciplinary Approach","volume":" ","pages":"775-782"},"PeriodicalIF":2.7,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11569649/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142074458","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":"The Influence of Limb Dominance on Performance-Based Outcomes After ACL Reconstruction.","authors":"Jordan Hodges, Amelia S Bruce Leicht, Xavier D Thompson, Brian C Werner, David R Diduch, Stephen F Brockmeier, F Winston Gwathmey, Mark D Miller, Joe M Hart","doi":"10.1177/19417381251343089","DOIUrl":"10.1177/19417381251343089","url":null,"abstract":"<p><strong>Background: </strong>Considering limb dominance (LD) may be valuable when utilizing limb symmetry index (LSI) when assessing patients after anterior cruciate ligament reconstruction (ACLR).</p><p><strong>Hypothesis: </strong>Patients will have better performance-based outcomes when index ACLR occurred on the dominant limb (DL) compared with the nondominant limb (NDL).</p><p><strong>Study design: </strong>Observational cross-sectional study.</p><p><strong>Level of evidence: </strong>Level 3.</p><p><strong>Methods: </strong>A total of 279 patients (49.1% female, 20.83 ± 5.23 years; 48% DL surgery) completed a laboratory visit (7.65 ± 1.65 months post-ACLR) assessing LD influence on knee extension and flexion peak torque, center of pressure (COP) distance and velocity, and hop performance. LD was defined as the preferred limb to kick a soccer ball. LSI variables were converted to indicator variables and categorized as \"Pass\" or \"Fail\" based on LSI ≥ 90%.</p><p><strong>Results: </strong>Patient LD and isometric knee extension LSI Pass status were significantly associated (χ² = 10.09; <i>P</i> = 0.001). No additional associations were found between LD and other LSI Pass status variables (<i>P</i> > 0.05). Patients with DL ACLR demonstrated more symmetric knee extension peak torque (<i>P</i> < 0.001, <i>d</i> = 0.42) and 6-meter hop (<i>P</i> = 0.02, <i>d</i> = 0.25) outcomes; NDL was more symmetric during COP distance tests (<i>P</i> = 0.03, <i>d</i> = 0.40). No differences were observed between LD and raw strength or balance measures (<i>P</i> > 0.05). Patients with ACLR on their NDL jumped farther on their contralateral limb for triple-hop (<i>P</i> = 0.03, <i>d</i> = 0.23) but not single-hop (<i>P</i> > 0.05) distance.</p><p><strong>Conclusion: </strong>LD appears to influence isometric knee LSI in patients post-ACLR; patients with surgery on their DL achieved higher symmetry and a greater rate of LSI Pass success for knee extension strength.</p><p><strong>Clinical relevance: </strong>Addressing differences in recovery patterns between DL and NDL may improve rehabilitation precision and guide return-to-activity timelines after ACLR.</p>","PeriodicalId":54276,"journal":{"name":"Sports Health-A Multidisciplinary Approach","volume":" ","pages":"19417381251343089"},"PeriodicalIF":2.7,"publicationDate":"2025-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12187700/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144477823","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":"Return to Sport After Reverse Shoulder Arthroplasty: A Systematic Review.","authors":"Aanya Singh, Victoria Cho, Hassaan Abdel Khalik, Danielle Dagher, Ujash Sheth, Moin Khan","doi":"10.1177/19417381251343083","DOIUrl":"10.1177/19417381251343083","url":null,"abstract":"<p><strong>Context: </strong>Reverse shoulder arthroplasties (RSAs) have become significantly more common in recent decades, and shoulder arthroplasties are increasingly performed on younger, active patient populations. However, the body of evidence evaluating return to sport after RSA is limited.</p><p><strong>Objective: </strong>To evaluate the rates of return to sport after RSA as well as patient-reported outcomes for pain and function.</p><p><strong>Data sources: </strong>A comprehensive search of MEDLINE, EMBASE, and CENTRAL identified studies from inception through October 10, 2023.</p><p><strong>Study selection: </strong>Studies evaluating return to sport after RSA in adult patients (>18 years) were included. Reviews, meta-analyses, non-English language, and studies that did not report return to sport data were excluded. Outcomes included rates of return to sport at any level, and at the same level or higher, as well as patient-reported outcomes.</p><p><strong>Study design: </strong>Systematic review.</p><p><strong>Level of evidence: </strong>Level 4.</p><p><strong>Data extraction: </strong>A descriptive analysis of the included studies was performed.</p><p><strong>Results: </strong>A total of 19 studies (3092 patients) were included. Mean patient age was 72.5 years, and most (58.8%) were female. The mean rate of return to sport at any level was 85.1% (95% CI, 84.6-85.6). The mean rate of return to the same level or higher was 69.5% (95% CI, 67.6-71.4). The mean decrease in visual analog scale pain score was 1.97, whereas ASES and CMS scores increased 64.0 and 35.5 points, respectively. All changes in patient-reported outcomes exceeded the minimal clinically important difference.</p><p><strong>Conclusion: </strong>This review demonstrates a high rate of return to sport after RSA, with a substantial portion of patients maintaining or exceeding their preoperative activity level. Clinically meaningful improvements in pain and function were also observed. Limitations include the predominantly retrospective study design and the high mean patient age, necessitating further research on generalizability and long-term outcomes, particularly in younger populations.</p>","PeriodicalId":54276,"journal":{"name":"Sports Health-A Multidisciplinary Approach","volume":" ","pages":"19417381251343083"},"PeriodicalIF":2.7,"publicationDate":"2025-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12181194/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144334446","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":"Rethinking Lower Extremity Limb Dominance: A Comparison of Performance-Based and Self-Selected Measures.","authors":"Anne Leung, Julie Dyke, Ryan Zarzycki, J Todd Lawrence, Theodore Ganley, Elliot Greenberg","doi":"10.1177/19417381251343085","DOIUrl":"10.1177/19417381251343085","url":null,"abstract":"<p><strong>Background: </strong>Limb dominance implies preferential or asymmetrical performance between limbs. There is currently no consensus regarding limb dominance definition for the lower extremity. Previous work described several methods of subjective reporting for lower extremity limb dominance; however, the correlation between objective performance and subjective perception of limb dominance is poorly understood, particularly among adolescent athletes. The purpose of this study was to test the agreement between objective performance and self-selected limb dominance in 3 different single-leg hopping tasks.</p><p><strong>Hypothesis: </strong>There will be a positive association between self-selected limb dominance and objective performance.</p><p><strong>Study design: </strong>Cross-sectional cohort study.</p><p><strong>Level of evidence: </strong>Level 3.</p><p><strong>Methods: </strong>Self-selected limb dominance was determined by asking, \"Which leg would you use to kick a ball as far as you could?\" Participants performed a series of single-leg hops, and 3-trial means of the single hop (SH), timed hop (TH), and vertical hop (VH) were used for analysis. Paired samples <i>t</i> test or Wilcoxon-signed rank test identified differences in limb performance for each hop test. Chi-square analysis evaluated associations between self-selected limb dominance and objective performance.</p><p><strong>Results: </strong>A total of 352 healthy youth athletes (55% male; mean age, 11.1 ± 1.7 years) participated. There was a small statistically significant difference between limbs on all hop tests. Chi-square analysis revealed no associations (<i>P</i> > 0.05) between self-selected limb dominance and objective performance across all hop test constructs.</p><p><strong>Conclusion: </strong>A single limb performed better on all hop tests by a small and not clinically relevant difference. Perceived limb dominance did not predict performance regardless of hopping task.</p><p><strong>Clinical relevance: </strong>Symmetrical performance on the SH, TH, and VH is normal in uninjured athletes. When returning injured athletes to sport, clinicians should aim for restoring hop test symmetry regardless of whether the injured limb is the perceived dominant limb.</p>","PeriodicalId":54276,"journal":{"name":"Sports Health-A Multidisciplinary Approach","volume":" ","pages":"19417381251343085"},"PeriodicalIF":2.7,"publicationDate":"2025-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12171090/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144303581","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":"Association of Loading Asymmetry During Squatting With Loading Asymmetry During Drop Jump After ACL Reconstruction: Implications for Rehabilitation Progression.","authors":"John M Popovich, Liang-Ching Tsai, Marisa Brito, John W Xerogeanes, Mark A Lyle","doi":"10.1177/19417381251343092","DOIUrl":"10.1177/19417381251343092","url":null,"abstract":"<p><strong>Background: </strong>Biomechanical asymmetries after anterior cruciate ligament reconstruction (ACLR) may be amplified and perpetuated by progressing athletes to higher-demand tasks despite impairments in lower-demand tasks.</p><p><strong>Hypotheses: </strong>(1) Between-limb asymmetries in limb loading and joint kinetics will be greater during the higher-demand drop jump compared with squatting. (2) Asymmetries in limb loading and joint kinetics during squatting will be associated with asymmetries during drop jump.</p><p><strong>Study design: </strong>Descriptive laboratory study.</p><p><strong>Level of evidence: </strong>Level 4.</p><p><strong>Methods: </strong>A total of 22 (11 female) participants after primary ACLR (6.4 ± 0.5 months) performed bilateral squat and drop jump tasks. Vertical ground-reaction force (vGRF), knee and hip extensor net joint moments (NJMs), hip/knee mean NJM ratio, and limb symmetry index (LSI) were calculated during the eccentric phase. Comparisons between limbs and across tasks were analyzed using 2-way repeated measures analyses of variance. Pearson's correlations assessed associations between vGRF and NJM LSIs, and hip/knee NJM ratios across tasks.</p><p><strong>Results: </strong>Mean vGRF LSI and knee NJM LSI were significantly more asymmetric during drop jump compared with squatting (79.7 ± 14.9 vs 90.0 ± 11.0%, <i>P</i> < 0.001 and 55.8 ± 17.6 vs 66.4 ± 25.6%, <i>P</i> = 0.02, respectively). Mean vGRF LSI (<i>r</i> = 0.58; <i>P</i> = 0.004) and knee NJM LSI (<i>r</i> = 0.61; <i>P</i> = 0.002) were moderately correlated between tasks. The hip/knee ratio for the ACLR limb correlated strongly between tasks (<i>r</i> = 0.69; <i>P</i> < 0.001); nonsurgical limb: r = 0.39; P = 0.07).</p><p><strong>Conclusion: </strong>Underloading and reduced functional use of the ACLR knee were amplified during the drop jump compared with squatting. Limb mechanics during lower-demand squatting are informative of performance during drop jump.</p><p><strong>Clinical relevance: </strong>Criterion-based rehabilitation guidelines may benefit from requiring symmetry in lower-demand tasks before progressing to higher-level activities to optimize recovery and reduce risk of reinjury.</p>","PeriodicalId":54276,"journal":{"name":"Sports Health-A Multidisciplinary Approach","volume":" ","pages":"19417381251343092"},"PeriodicalIF":2.7,"publicationDate":"2025-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12170558/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144303580","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":"Relationship Between Patients' Self-Reported Injury Mechanism and MRI Outcomes in Hamstring Muscle Injury: A Prospective Cohort Study on 71 Patients.","authors":"Sylvain Grange, Gustaaf Reurink, Pierre Croisille, Pascal Edouard","doi":"10.1177/19417381251343070","DOIUrl":"10.1177/19417381251343070","url":null,"abstract":"<p><strong>Background: </strong>Hamstring muscle injury (HMI) is the most common injury in sports that require sprints and accelerations. Different HMI subtypes have been described according to the muscle, location, tissue, and severity of the injury. It is of interest to determine whether these subtypes are related to a particular clinical injury mechanism.</p><p><strong>Hypothesis: </strong>There would be an association between the muscle involved and the injury mechanism.</p><p><strong>Study design: </strong>Prospective, multicenter, observational cohort study.</p><p><strong>Level of evidence: </strong>Level 3.</p><p><strong>Methods: </strong>All patients underwent postinjury magnetic resonance imaging (MRI) and were assessed for their mechanism of injury using a survey. Statistical analyses used chi squared test and analysis of variance.</p><p><strong>Results: </strong>A total of 71 patients were included in the present study. MRI scans were performed within 7.5 ± 4.9 days of injury. There was no significant association between the HMI mechanism and the injured muscle (χ² = 6.86; <i>P</i> = 0.34), or with proximo-distal position (χ² = 20.28; <i>P</i> = 0.16). There was a significant association between HMI mechanism and HMI grade (χ² = 23.7; <i>P</i> < 0.001) and the HMI volume (F(3,67) = 5.223; <i>P</i> = 0.003) with significant higher severity and higher volume in stretching than in running mechanisms (<i>P</i> = 0.002).</p><p><strong>Conclusion: </strong>We showed an association between HMI mechanism and MRI scan grade and volume, with significant higher injury grade and larger volume in stretching mechanism.</p><p><strong>Clinical relevance: </strong>These differences, depending on the mechanism of injury, may lead to changes in clinical practice.</p>","PeriodicalId":54276,"journal":{"name":"Sports Health-A Multidisciplinary Approach","volume":" ","pages":"19417381251343070"},"PeriodicalIF":2.7,"publicationDate":"2025-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12165957/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144287131","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":"Monitoring Internal and External Training Loads in Female Artistic Roller Skating: A Longitudinal Study.","authors":"André Rebelo, Diogo V Martinho, Inês G Pires, Ricardo Lima, Fábio Y Nakamura","doi":"10.1177/19417381251334641","DOIUrl":"10.1177/19417381251334641","url":null,"abstract":"<p><strong>Background: </strong>Artistic roller skating is a sport that involves high physical demands, particularly in the free skating discipline, where jumps are critical. Managing training loads is essential for optimizing performance and preventing injuries.</p><p><strong>Hypothesis: </strong>To investigate the internal and external training loads of female artistic roller skating athletes and to analyze the relationships between these loads components.</p><p><strong>Study design: </strong>Cohort study.</p><p><strong>Level of evidence: </strong>Level 3.</p><p><strong>Methods: </strong>A total of 15 female artistic roller skating athletes were monitored over a 4-week mesocycle leading up to the National Championship. Internal training load (ITL) was measured using the session rating of perceived exertion (sRPE), whereas external training load (ETL) was assessed with an inertial measurement unit capturing jumps and energy. Repeated measures analysis of variance (RMANOVA) and correlation analysis were conducted.</p><p><strong>Results: </strong>The RMANOVA revealed significant differences in monotony and strain of ITL, as well as in the monotony of jumps and energy. Significant correlations were found between ITL and ETL metrics, with higher sRPE and daily ITL associated with increased jumps and energy.</p><p><strong>Conclusion: </strong>The findings highlight the interrelationships between internal and external load metrics, with higher perceived exertion and daily training loads associated with increased external workload, particularly in jump frequency and energy. In addition, training monotony and strain fluctuated across microcycles, with notable increases observed as the competition approached. These results emphasize the importance of systematically monitoring both internal and external training loads, including monotony and strain, to better understand workload dynamics and guide training adjustments.</p><p><strong>Clinical relevance: </strong>The findings provide practical insights for coaches on how to balance training intensity and volume to enhance performance and prevent overtraining and injuries.</p>","PeriodicalId":54276,"journal":{"name":"Sports Health-A Multidisciplinary Approach","volume":" ","pages":"19417381251334641"},"PeriodicalIF":2.7,"publicationDate":"2025-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12149159/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144250866","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}