Physician and Sportsmedicine最新文献

{"title":"Repetitive head impacts among professional fighters: a pilot study evaluating Traumatic Encephalopathy Syndrome and postural balance.","authors":"Brooke Conway Kleven, Lung-Chang Chien, Daniel L Young, Chad L Cross, Brian Labus, Charles Bernick","doi":"10.1080/00913847.2024.2325331","DOIUrl":"10.1080/00913847.2024.2325331","url":null,"abstract":"<p><strong>Objectives: </strong>Clinical criteria for Traumatic Encephalopathy Syndrome (ccTES) were developed for research purposes to reflect the clinical symptoms of Chronic Traumatic Encephalopathy (CTE). The aims of this study were to 1) determine whether there was an association between the research diagnosis of TES and impaired postural balance among retired professional fighters, and 2) determine repetitive head impacts (RHI) exposure thresholds among both TES positive and TES negative groups in retired professional fighters when evaluating for balance impairment.</p><p><strong>Methods: </strong>This was a pilot study evaluating postural balance among participants of the Professional Athletes Brain Health Study (PABHS). Among the cohort, 57 retired professional fighters met the criteria for inclusion in this study. A generalized linear model with generalized estimating equations was used to compare various balance measures longitudinally between fighters with and without TES.</p><p><strong>Results: </strong>A significant association was observed between a TES diagnosis and worsening performance on double-leg balance assessments when stratifying by RHI exposure thresholds. Additionally, elevated exposure to RHI was significantly associated with increased odds of developing TES; The odds for TES diagnosis were 563% (95% CI = 113, 1963; p-value = 0.0011) greater among athletes with 32 or more professional fights compared to athletes with less than 32 fights when stratifying by balance measures. Likewise, the odds for TES diagnosis were 43% (95% CI = 10, 102; p-value = 0.0439) greater with worsening double leg stance balance in athletes exposed to 32 or more fights.</p><p><strong>Conclusion: </strong>This pilot study provides preliminary evidence of a relationship between declining postural balance and a TES diagnosis among retired professional fighters with elevated RHI exposure. Further research exploring more complex assessments such as the Functional Gait Assessment may be of benefit to improve clinical understanding of the relationship between TES, RHI, and balance.</p>","PeriodicalId":51268,"journal":{"name":"Physician and Sportsmedicine","volume":" ","pages":"513-519"},"PeriodicalIF":1.9,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139991694","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":"Training profile, sporting habits and injury characteristics of Spanish obstacle course races participants: cross-sectional study.","authors":"Daniel González-Devesa, Jorge García-Rubio, Jose Carlos Diz-Gómez, Carlos Ayán-Pérez","doi":"10.1080/00913847.2024.2303967","DOIUrl":"10.1080/00913847.2024.2303967","url":null,"abstract":"<p><strong>Objectives: </strong>This study aimed to provide information on the training profile and characteristics of injuries sustained by obstacle course racing competitors.</p><p><strong>Methods: </strong>This research is a nationwide cross-sectional, self-administered online survey conducted in 2023.</p><p><strong>Results: </strong>We analyzed the data collected from 201 obstacle course racing participants (mean age: 33.8 ± 7.1 years; 60.7% men). On average, athletes had 2.9 ± 2.4 years of obstacle course racing experience and participated in approximately four races in the previous year. Most of these races covered distances of 5-10 km (65.2%). Among the participants, 28.4% reported injuries, with the upper extremities being the most frequently affected. Approximately 19% of these injuries required medical supervision, and 2% led to hospitalization.</p><p><strong>Conclusion: </strong>Injury risk in obstacle course racing participants was associated with participation in a higher number of obstacle course racing competitions, reduced time between these competitions and having performed specific obstacle training.</p>","PeriodicalId":51268,"journal":{"name":"Physician and Sportsmedicine","volume":" ","pages":"478-485"},"PeriodicalIF":1.9,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139405166","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":"Patellar tilt, congruence angle, and tibial tubercle-trochlear groove distance are correlated with positive J-sign in adolescents.","authors":"Si Heng Sharon Tan, Yiu Tsun Kwan, Joel Zhao Jie Lee, Lincoln Kai Pheng Yeo, Andrew Kean Seng Lim, James Hoipo Hui","doi":"10.1080/00913847.2024.2315012","DOIUrl":"10.1080/00913847.2024.2315012","url":null,"abstract":"<p><strong>Purpose: </strong>The J-sign is a clinical evaluation tool that assesses for patellar maltracking and is considered positive if lateral translation of the patella in extension, in the pattern of an inverted J is observed. This study aims to determine the association of clinical J-sign with imaging features noted on dynamic kinematic computed tomography (DKCT).</p><p><strong>Methods: </strong>A retrospective review was conducted by reviewing the clinical records of all patients aged 18 years or younger who had a CT patellar tracking scan done between 1 January 2005 to 31 December 2016 in a single institution. Patients who had the presence or absence of a 'J-sign' evaluated clinically were included. Radiographic parameters evaluated using the axial cuts include the patellar tilt angle, congruence angle, Dejour's classification, femoral sulcus angle, trochlear groove depth, and Wiberg's classification. Patients were then divided into two groups based on the presence or absence of J-sign on clinical examination. The radiographic measurements were then analyzed for association with the presence or absence of J-sign on clinical examination.</p><p><strong>Results: </strong>Patients with a positive J-sign had an increased patellar tilt of 23.3° ± 14.2° and an increased congruence angle of 47.1° ± 28.5° when measured in extension as compared to a patellar tilt of 18.3° ± 10.8° and a congruence angle of 32.1° ± 20.8° in patients with a negative J-sign (<i>p</i> = 0.024 and 0.004, respectively). Comparisons of the change in congruence angles with the knee in full extension and at 20° flexion also yielded significantly higher change of 28.0° ± 20.4° in patients with a positive J-sign as compared to 11.9° ± 17.5° in patients with a negative J-sign. Patients with a positive J-sign also had an increased TT-TG distance of 17.6 ± 5.6 mm as compared to a TT-TG distance of 14.7 ± 6.9 mm in patients with a negative J-sign (<i>p</i> = 0.01).</p><p><strong>Conclusion: </strong>Patients with a positive J-sign had an increased patellar tilt and an increased congruence angle when measured in extension. Increased TT-TG distance was also significantly associated with positive J-sign. Patients with a positive J-sign also had a greater change in their congruence angle when measured with the knee in full extension and at 20° of flexion.</p>","PeriodicalId":51268,"journal":{"name":"Physician and Sportsmedicine","volume":" ","pages":"492-496"},"PeriodicalIF":1.9,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139693478","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":"Long-term manifestations of COVID-19 in athletes: a narrative review.","authors":"João Ribeiro, Daniel Caldeira, Hélder Dores","doi":"10.1080/00913847.2024.2321629","DOIUrl":"10.1080/00913847.2024.2321629","url":null,"abstract":"<p><strong>Background: </strong>Long COVID is a condition where symptoms or complications persist beyond 3 months after COVID-19 infection. Although most athletes experience mild symptoms, those involved in sports with higher cardiovascular demands can develop long COVID, which can negatively impact sports performance. This narrative review aimed to analyze the long COVID in athletes, especially cardiovascular effects; to alert medical and sporting community for the clinical aftermaths of COVID-19, focusing on physical activity; and to discuss the potential return-to-play strategies for these athletes.</p><p><strong>Methods: </strong>An electronic search in PubMed database for articles published between January/2020 and February/2023 was performed including athletic populations with COVID-19, emphasizing long-term complications, especially the cardiovascular effects.</p><p><strong>Results and conclusions: </strong>While severe cardiac complications are rare, athletes with long COVID often experience symptoms such as fatigue, dyspnea, palpitations, and exercise intolerance. To manage athletes with long COVID, individualized and structured return-to-play programs with the involvement of multidisciplinary teams are crucial. This underscores the importance of recognizing long COVID in athletes, raising awareness of its potential impacts, and implementing strategies to ensure a safe return to play.</p>","PeriodicalId":51268,"journal":{"name":"Physician and Sportsmedicine","volume":" ","pages":"452-459"},"PeriodicalIF":1.9,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139906909","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":"Knockout rates across the states as a way of predicting injury and knockout based on fighter sex, weight, or experience.","authors":"Eric Twohey, George Velasco, John Neidecker, Richard Giovane","doi":"10.1080/00913847.2023.2285716","DOIUrl":"10.1080/00913847.2023.2285716","url":null,"abstract":"<p><p>Combat sports, such as boxing and mixed martial arts [MMA], have the unique objective to finish a bout by way of knockout [KO] or technical knockout [TKO]. There are potentially both short- and long-term neurological injuries that can happen as a result of the repeated head trauma sustained in bouts, and thus it is imperative to identify the athletes that are at increased risk. Using an online database of professional boxing bouts [boxrec.com] over a 6-month period, KO/TKO rates were calculated across different states, weight classes, sex, and Fight Exposure Score [FES] categories. There was found to be a significant association between KO/TKO rates and weight class, sex, and FES category with heavyweights, males and FES 0 boxers having higher KO/TKO rates. KO/TKO rates were increased in winless boxers. KO/TKO rates across the states are documented in the study.</p>","PeriodicalId":51268,"journal":{"name":"Physician and Sportsmedicine","volume":" ","pages":"395-399"},"PeriodicalIF":1.9,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138292316","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":"Increased asphericity of the femoral head-neck junction in professional breakers compared to hobby athletes - a retrospective case-control study.","authors":"Luise Weinrich, Marcel Niemann, Karl F Braun, Sufian S Ahmad, Ulrich Stöckle, Sebastian Meller","doi":"10.1080/00913847.2023.2256210","DOIUrl":"10.1080/00913847.2023.2256210","url":null,"abstract":"<p><strong>Objective: </strong>Breaking has gained public attention as a form of sports activity. The associated intense movements of the hip joints are possibly linked to the development of femoroacetabular impingement (FAI). Therefore, this study aimed to assess clinical and radiographic FAI measures in professional breakers compared to hobby athletes.</p><p><strong>Methods: </strong>The study cohort consisted of professional breakers with persisting hip pain who were 1:1 matched to a cohort of FAI patients without professional sports careers from our outpatient clinic. The primary endpoint assessed on standardized plain radiographs was the alpha angle (AA). Further measures were the acetabular index (AI), lateral center-edge angle (LCEA), crossover sign, ischial spine sign, and femoral head extrusion index (FHEI). The modified Harris Hip Score (mHHS) and the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) score were used to obtain patient-reported measures.</p><p><strong>Results: </strong>We recruited ten professional breakers and matched them to ten hobby athletes. The median AA was significantly higher in the breakers compared with the hobby athletes (73° [IQR 66.5°, 84.2°]) vs. 61.8° [IQR 59.5°, 64.8°], <i>p</i> = 0.0004). There was a significant reduction in weekly training hours in breakers after diagnosis (13.0 hours [interquartile range [IQR] 9.5, 32.4] to 1.5 hours [IQR 0, 4.8], <i>p</i> = 0.0039). There were no inter-group differences regarding mHHS, WOMAC, and additional radiographic measurements.</p><p><strong>Conclusion: </strong>Breakers have higher AA in cam-type FAI compared to nonprofessional athletes. The corresponding hip pain significantly reduced training hours and caused the end of their breaking career. The potentially high prevalence of FAI in breakers and the corresponding consequences need to be considered early when athletes present with hip pain.</p>","PeriodicalId":51268,"journal":{"name":"Physician and Sportsmedicine","volume":" ","pages":"333-342"},"PeriodicalIF":1.9,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10221264","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":"Workman's compensation as exclusion criteria in rotator cuff repair literature - are we inadvertently excluding race?","authors":"Donghoon Lee, Henson Destine, Andres Perez, Maxwell C Detweiler, Douglas R Corsi, Adam J Lencer, Brian S Gibbs, Kevin B Freedman, Fotios P Tjoumakaris","doi":"10.1080/00913847.2023.2267556","DOIUrl":"10.1080/00913847.2023.2267556","url":null,"abstract":"<p><strong>Objective: </strong>Despite an equal willingness to participate in clinical trials, there is evidence that several minority populations are systematically under-represented in studies. One potential cause and frequently used exclusionary criterion in orthopedic trials is patients with active workman's compensation (WC) insurance claims. The purpose of this study is to determine demographic differences in patients undergoing arthroscopic rotator cuff repair with commercial and government insurance vs workers compensation claims.</p><p><strong>Methods: </strong>This was a retrospective review of patients who underwent primary arthroscopic rotator cuff repair at a single institution in the northeastern United States from 2018 to 2019. Patients undergoing revision cases were excluded. Chart review was used to extract demographic data such as age, gender, insurance, and reported race.</p><p><strong>Results: </strong>A total of 4553 patient records were reviewed and included. There were 742 WC patients and 3811 non-WC patients. Two hundred and forty-four patients did not report their race. Overall, WC patients differed from non-WC with respect to race (<i>P</i> < 0.001). One hundred and eleven (15.0%) of WC and 293 (7.7%) non-WC patients reported being 'Black' or 'African American' (<i>P</i> = 0.002). This compares to 368 (49.6%) WC and 2788 (73.2%) non-WC patients who reported 'White' (<i>P</i> < 0.001). About 16.8% of WC patients were identified as 'Hispanic or Latino,' compared to 5.2% of non-WC (<i>P</i> < 0.001).</p><p><strong>Conclusion: </strong>African American and Hispanic/Latino patients are over-represented in workman's compensation patient populations relative to non-workman's compensation. Conversely, white patients are over-represented in non-WC patient populations, which serve as the basis for the majority of clinical study populations. Excluding workman's compensation patients from clinical trials may lead to an underrepresentation of African American and Hispanic/Latino patient populations in orthopedic clinical trials. In doing so, the generalizability of the results of rotator cuff repair clinical outcomes research to all races and ethnicities may be compromised.</p>","PeriodicalId":51268,"journal":{"name":"Physician and Sportsmedicine","volume":" ","pages":"355-359"},"PeriodicalIF":1.9,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41174077","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":"A novel equestrian helmet testing method: helmet liner performance in highly realistic simulation.","authors":"Fitzgerald Dodds, Davis Fabre, Kevin Schrum, Robert Oster, Thomas Buford, Sara Gould","doi":"10.1080/00913847.2023.2282381","DOIUrl":"10.1080/00913847.2023.2282381","url":null,"abstract":"<p><strong>Objective: </strong>Employ a novel testing method to assess Multi Directional Impact Protection System (MIPS) helmet technology on rotational velocity and acceleration during head impact.</p><p><strong>Methods: </strong>An optimization study was completed utilizing a 50th percentile male Hybrid III anthropomorphic test device (ATD). Helmets included expanded polystyrene foam (EPS) and two different MIPS helmets (MIPS 1, MIPS 2). A 24.38-m-long elevated track with rails and a motorized sled was utilized to replicate a fall from approximately 2.13 m. The sled was set to a speed of 20.92 kph, where a tripping mechanism induced rotation in the ATD from the sled and onto a sand surface. During impact of the ATD with the sand surface, head kinematics were measured using resultant acceleration (peak G's), duration of impact (ms), and rotational velocity (rad/s).</p><p><strong>Results: </strong>A total of three trials for each helmet did not demonstrate a significant difference between the EPS vs. MIPS 1 group with, peak (G's) for resultant acceleration (<i>p</i> = 0.100), duration (ms) for resultant acceleration, (<i>p</i> = 0.100), peak (G's) for rotational velocity, (<i>p</i> = 0.700), and duration (ms) for rotational velocity (<i>p</i> = 0.700). Similarly, the EPS vs. MIPS 2 testing demonstrated no significant differences between the MIPS 2 helmet compared to the EPS helmet, with resultant acceleration (<i>p</i> = 0.400), duration acceleration (<i>p</i> = 0.200), rotational velocity (<i>p</i> = 0.400) and duration velocity (<i>p</i> = 0.400). However, when the MIPS helmet data were pooled, and the EPS helmet data were compared, a statistically significant difference in the duration of acceleration was found (<i>p</i> = 0.048).</p><p><strong>Conclusions: </strong>Current testing uses a helmeted head form which is dropped or rolled from a prescribed height. These methods discount the loading placed on the neck and head through the angular momentum of the body. Our novel testing method did not find significant differences between the helmet types in diminishing peak rotational forces to the brain; however, our data suggests that MIPS helmet liners may reduce duration of impact. The reduction of acceleration duration could indicate less rotation of the neck, due to the dampening of these forces by the MIPS liners.</p>","PeriodicalId":51268,"journal":{"name":"Physician and Sportsmedicine","volume":" ","pages":"381-385"},"PeriodicalIF":1.9,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"92157268","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":"Prevalence of anemia and iron deficiency and its association with body mass index in elite Japanese high school long-distance runners.","authors":"Shogo Tabata, Yuka Tsukahara, Hiroshi Kamada, Tomohiro Manabe, Fumihiro Yamasawa","doi":"10.1080/00913847.2023.2267561","DOIUrl":"10.1080/00913847.2023.2267561","url":null,"abstract":"<p><strong>Objectives: </strong>Anemia is a common condition in long-distance runners (LDRs). Recently, not only iron deficiency (ID) but also energy deficiency has been considered as a risk factor for anemia in athletes but no evidence has yet been established. The aim of this study was to investigate the prevalence of anemia and ID and the influence of body mass index (BMI) on anemia in high-school LDRs.</p><p><strong>Methods: </strong>The participants were 406 male and 235 female elite Japanese LDRs who competed in the All-Japan High-School Ekiden Championship 2019. They submitted their anthropometric data and results of a blood test within five days after the competition. The prevalence of anemia and ID and the influence of BMI on anemia were assessed retrospectively.</p><p><strong>Results: </strong>Mean hemoglobin concentrations (Hb) were 14.8 ± 0.9 g/dl in males and 13.2 ± 0.9 g/dl in females. The prevalence of anemia (Hb < 14 g/dl in males and < 12 g/dl in females) was significantly higher in males (16.3%) than females (6.4%), but males also showed higher prevalence of non-iron deficiency anemia (NIDA) than females (11.6% and 3.0%, respectively). No significant gender difference was found in the prevalence of iron deficiency anemia (IDA) (4.7% in males and 3.4% in females). ID (serum ferritin level < 25 ng/ml) was significantly more prevalent in females (37.4%) than males (18.5%). A binary logistic regression analysis revealed that low BMI was a contributor to anemia in females (odds ratios: 0.577 (95% CI: 0.369-0.901), <i>p</i> = 0.012).</p><p><strong>Conclusion: </strong>In Japanese high-school LDRs, one in six males was anemic, but most males did not have ID. Conversely, one-third of females were diagnosed with ID. Lower BMI was identified as a risk for anemia in females, suggesting that leanness may also lead to anemia in females.</p>","PeriodicalId":51268,"journal":{"name":"Physician and Sportsmedicine","volume":" ","pages":"360-368"},"PeriodicalIF":1.9,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41164998","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":"Relationship between relative age measured through decimal age, physical variables and anthropometry in elite youth soccer players.","authors":"Iván Asín-Izquierdo, Marcos Chena, Vicente de Dios-Álvarez, Carlos Galiano","doi":"10.1080/00913847.2023.2258768","DOIUrl":"10.1080/00913847.2023.2258768","url":null,"abstract":"<p><strong>Introduction: </strong>Age differences between athletes born in the same year, as well as an over-representation of older players, are known as the Relative Age Effect (RAE). Players born at the beginning of the selection year have a physical and anthropometric advantage over their younger peers. Experts keep looking for new prediction variables for talent identification.</p><p><strong>Objectives: </strong>The aim of the study is to correlate anthropometric, strength and power variables with the relative age (RA) and the level of the teams in which players played in each age category.</p><p><strong>Methods: </strong>All players (<i>N</i> = 366) from an elite soccer academy of a Spanish club volunteered to participate in the study (U23-U10).</p><p><strong>Results: </strong>There was a significant correlation between the RA of the players and the level of the team in which they played in each age category but no correlation between trimester of birth and level of the team. We found significant correlations between the players' physical capacities, anthropometry, RA and the level of the team in which they played for the same age category, mainly from U16 to U10. U23 did not show any correlation between RA and physical or anthropometric variables.</p><p><strong>Conclusion: </strong>Coaches should be cautious of choosing players based only on anthropometric or physical attributes.</p>","PeriodicalId":51268,"journal":{"name":"Physician and Sportsmedicine","volume":" ","pages":"343-348"},"PeriodicalIF":1.9,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10278122","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}