International journal of sports medicine最新文献

{"title":"Bilateral Coordination is Improved at 10-km Race Speed in Trained Runners.","authors":"Johnny Padulo, Christian Doria, Raffaele Scurati, Andrea Antiglio, Matthieu Odinot, Fabio Esposito, Leonardo Alexandre Peyré-Tartaruga","doi":"10.1055/a-2676-8305","DOIUrl":"https://doi.org/10.1055/a-2676-8305","url":null,"abstract":"<p><p>In the last decades, gait variability (GV) has provided new insight into motor control. No study, though, quantified the GV together with bilateral symmetry at different running intensities in runners. For this aim, 16 male runners (35±6 y), after a simulated 10-km time trial (average speed, TT), performed randomly three 15-minute running bouts at TT running speed, 10% slower, and 10% faster than TT. Metabolic, perceptive, and spatiotemporal parameters with phase coordination index (PCI) were collected across all trials. The TT was 14.16±1.65 km·h^-1, rating of perceived exertion of 8.94±0.36 a.u. and 95.25±5.83% of the maximum heart rate. The PCI was lower at TT speed than at other speeds (<i>p</i>=0.002). The energy cost of running was higher at slower speeds in comparison to TT speed and higher speed conditions (<i>p</i>=0.029 and <i>p</i>=0.017, respectively). The ratings of perceived exertion, heart rate, oxygen consumption, flight time, and stride length increased according to the speed (<i>p</i><0.05). The finding that the PCI is better at 10-km race speed suggests that improved ability to modulate the right-left stepping control is related to an energetic optimization process impacting positively the talent development and performance in trained runners. Although the metabolic cost estimates are grounded in a robust theoretical framework, these findings necessitate further empirical verification.</p>","PeriodicalId":14439,"journal":{"name":"International journal of sports medicine","volume":" ","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144954349","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":"Sex differences in arterial stiffness and blood pressure following resistance exercise.","authors":"Rebecca M Kappus, Caroline C Rushing, Kaitlin T McShea","doi":"10.1055/a-2605-5548","DOIUrl":"10.1055/a-2605-5548","url":null,"abstract":"<p><p>Physiological responses to stressors provide insight into future disease risk and sex differences in response to and recovery from stressors, such as a hypertensive stimulus, provide understanding of cardiovascular control. The purpose of this study was to determine sex specific responses to an acute resistance exercise bout in central and peripheral blood pressures and arterial stiffness. Twenty-five young males and females who had not engaged in resistance training over the previous year underwent measurements of aortic, carotid, and brachial blood pressures, and carotid and aortic arterial stiffness measurements before, immediately after, and 30 minutes following a full-body resistance exercise bout. Resistance exercise resulted in increased carotid systolic pressure and increased aortic in males only. Both males and females increased carotid stiffness, but males had a greater increase in stiffness that remained elevated while females returned to baseline by 30 minutes post. These findings highlight that blood pressure and arterial stiffness responses to an acute bout of resistance exercise are sex-specific and vary based on measurement timing and location within the arterial tree. Females do not display the same increases in aortic stiffness and central pressures and did not have the same magnitude of carotid stiffness increases as seen in males.</p>","PeriodicalId":14439,"journal":{"name":"International journal of sports medicine","volume":" ","pages":"742-749"},"PeriodicalIF":2.2,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144284364","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":"Physiological, Physical and Technical Demands During Sided Soccer Game Formats: a Review.","authors":"Filipe Manuel Clemente, Diogo V Martinho, Rui Silva, Robert Trybulski, Javier Sánchez-Sánchez, Alejandro Rodríguez-Fernández, Marco Beato, José Afonso","doi":"10.1055/a-2591-6995","DOIUrl":"10.1055/a-2591-6995","url":null,"abstract":"<p><p>This meta-analysis aimed to compare the acute physiological, physical, and technical demands in soccer players during different sided game formats (1v1 to 10v10). This review included studies on soccer players with a competitive or developmental level, focusing on games with at least one comparison of sided formats. Outcomes assessed included physiological parameters (e.g., heart rate and blood lactate levels), physical demands (e.g., distance and accelerations), and technical actions (e.g., passes). The risk of bias assessment tool for nonrandomized studies of interventions (RoBANS 2) and (Grading of Recommendations, Assessment, Development and Evaluation) were used to evaluate the risk of bias and the certainty of evidence. The search across PubMed, Scopus, and Web of Science identified 2,545 records, of which 72 studies were included. Meta-analyses found that 2v2 and 3v3 formats were more physiologically intense, showing higher perceived exertion and blood lactate levels, with 3v3 also having higher heart rates. The 4v4 and 3v3 formats resulted in greater physical demands compared to the 2v2 format, with increased distances covered at various speeds, although differences were minimal beyond the 4v4 format. Smaller formats promoted ball possession, while the 3v3 format resulted in more successful shots, dribbles, and passes. In conclusion, small-sided games (< 3v3) were more physiologically demanding, mid-sized formats (> 4v4) increased locomotor demands, and smaller formats improved technical skills, although the findings should be interpreted cautiously due to study limitations.</p>","PeriodicalId":14439,"journal":{"name":"International journal of sports medicine","volume":" ","pages":"710-741"},"PeriodicalIF":2.2,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143965523","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The impact of sports participation on medication costs among adolescents: ABCD growth study.","authors":"Ana Elisa von Ah Morano, Jéssica Malek da Silva, Lara Julia Montezori Costa, Karla Minacca Osco, Beatriz Dalarme Tanganini, Ariane Pereira Ramirez, Jamile Sanches Codogno, Rômulo Araújo Fernandes, Monique Yndawe Castanho Araujo","doi":"10.1055/a-2598-5427","DOIUrl":"10.1055/a-2598-5427","url":null,"abstract":"<p><p>The economic impact of physical activity has been extensively investigated among adults, but few studies have analyzed this issue in pediatric populations. To analyze the relationship of costs attributed to medicine use with the time spent in different intensities of physical activity and sports participation among adolescents. A sample of 92 adolescents were tracked for 28 weeks. The main outcome was the overall cost attributed to medicine use (assessed weekly [US$]). Independent variables were moderate-to-vigorous physical activity outside sports and sportive moderate-to-vigorous physical activity, assessed in three time points (baseline, 14 weeks and 28 weeks) using accelerometers (min/day). A total of 53 boys and 39 girls, with a mean age of 14.54 (1.96) years, were evaluated. Sedentary time (rho=0.217 [95%CI: 0.006 to 0.420]) and moderate-to-vigorous physical activity+Sportive moderate-to-vigorous physical activity (- 0.250 [95%CI:-0.447 to-0.130]) were related to costs attributed to medicine use. When the multivariate model considered sedentary time as a covariate, the relationship between moderate-to-vigorous physical activity+Sportive moderate-to-vigorous physical activity and costs attributed to medicine use became non-significant (beta=- 0.007 [95%CI:-0.017 to 0.004]; <i>p</i>-value=0.206). The time spent in moderate-to-vigorous physical activity was inversely related to the medication costs accumulated through the follow-up period, while sedentary time appears to counteract these benefits.</p>","PeriodicalId":14439,"journal":{"name":"International journal of sports medicine","volume":" ","pages":"780-785"},"PeriodicalIF":2.2,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144017624","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":"Modeling the marathon and human endurance performances: some thoughts and what's new?","authors":"Michael J Joyner","doi":"10.1055/a-2539-1381","DOIUrl":"10.1055/a-2539-1381","url":null,"abstract":"<p><p>In 1991, I published a physiological model of marathon running performance. My model predicted that it might be possible for a human to run the marathon in less than 2 hours. In this article, I review the genesis of my thinking at that time, share my perspective about what has changed over the last 30 plus years, and speculate about what the future might hold.</p>","PeriodicalId":14439,"journal":{"name":"International journal of sports medicine","volume":" ","pages":"705-709"},"PeriodicalIF":2.2,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143414077","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":"Effects of brief online mindful sport performance enhancement on athletes' mental health, emotion regulation, and performance: a mixed-methods randomized controlled trial.","authors":"Emre Ozan Tingaz","doi":"10.1055/a-2602-9082","DOIUrl":"10.1055/a-2602-9082","url":null,"abstract":"<p><p>A growing body of sports psychology research has focused on mindfulness-based training in sports environments. This study examined the effects of a 6-day online Mindful Sport Performance Enhancement program on mental health, emotion regulation (reappraisal and suppression), and athletic performance in student-athletes. Fifty-three participants were randomly assigned to experimental or waitlist control groups. Pre- and post-test data were collected using the Sports Mental Health Continuum-Short Form, Emotion Regulation Scale for Athletes, and a Self-rated Performance Questionnaire. Additionally, eight participants from the experimental group joined a post-intervention focus group interview. Results from 2×2 mixed-design ANOVAs revealed significant interaction effects for the mental health continuum (<i>η</i> _p ²=0.242) and reappraisal (<i>η</i> _p ²=0.240), suggesting improved emotional regulation and protection against mental health declines. However, suppression (<i>η</i> _p ²=0.008), subjective well-being (<i>η</i> _p ²=0.055), and self-rated performance (<i>η</i> _p ²=0.005) showed no significant improvements. Qualitative findings highlighted perceived benefits of the intervention, such as increased mindfulness, better emotional control, and improved focus and performance. In conclusion, although statistical improvements were limited to select outcomes, the 6-day online MSPE intervention appears to be a brief, feasible approach for supporting the psychological functioning of student-athletes.</p>","PeriodicalId":14439,"journal":{"name":"International journal of sports medicine","volume":" ","pages":"768-779"},"PeriodicalIF":2.2,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144309889","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":"Comparison of modeled lactate threshold 2 with maximal lactate steady state in running and cycling.","authors":"Sebastian Keller, Jonas Fischer, Sanghyeon Ji, Lukas Zwingmann, Patrick Wahl","doi":"10.1055/a-2550-4988","DOIUrl":"10.1055/a-2550-4988","url":null,"abstract":"<p><p>This study investigated (1) the agreement of modeled lactate threshold 2 using peak oxygen uptake, cost of locomotion, and fractional utilization of peak oxygen uptake at lactate threshold 2 with the maximal lactate steady state in running and cycling; (2) the impact of different cost of locomotion determination methods on the accuracy of the model and (3) the contributions of peak oxygen uptake, cost of locomotion, and fractional utilization of peak oxygen uptake at lactate threshold 2 to the work rate at maximal lactate steady state. Thirty-four endurance-trained athletes (27.7±6.9 y, 56.2±5.5 ml∙kg^-1∙min^-1) completed an incremental step test on a treadmill or a cycling ergometer. Peak oxygen uptake, cost of locomotion at lactate threshold 1, at 80% of peak oxygen uptake, and at lactate threshold 2, and fractional utilization of peak oxygen uptake at lactate threshold 2 were assessed. Two to five 30-minute constant work rate tests were performed for maximal lactate steady state determination. Moderate to good agreement was found between modeled work rate corresponding to lactate threshold 2 and the maximal lactate steady state for running and cycling (intraclass correlation coefficient≥0.698) with the smallest mean difference (±limits of agreement) for cost of locomotion determined at lactate threshold 2 with -2.0±5.2 and -0.9±6.0%, respectively. Overall, 83 and 79% of the variance in the maximal lactate steady state was explained by peak oxygen uptake, cost of locomotion determined at lactate threshold 2, and fractional utilization of peak oxygen uptake at lactate threshold 2, respectively. Peak oxygen uptake and cost of locomotion determined at lactate threshold 2 contributed the most to the regression <i>R</i> ² in running (54 and 40%) and cycling (74 and 51%), while fractional utilization of peak oxygen uptake at lactate threshold 2 had the smallest contribution (4 and 5%). Based on the high accuracy of the model with the major contribution of peak oxygen uptake and cost of locomotion determined at lactate threshold 2, the work rate corresponding to the maximal lactate steady state could be improved focusing on these two variables during training.</p>","PeriodicalId":14439,"journal":{"name":"International journal of sports medicine","volume":" ","pages":"750-758"},"PeriodicalIF":2.2,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143542013","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":"Muscle Damage and the Repeated-bout Effect After a Typical Nordic Hamstring Exercise Session.","authors":"Giuseppe Coratella, Emiliano Cè, Antonio D'Orlando, Edoardo Steri, Riccardo Padovan, Oscar La Spina, Fabio Esposito, Stefano Longo","doi":"10.1055/a-2595-3622","DOIUrl":"10.1055/a-2595-3622","url":null,"abstract":"<p><p>The present study investigated muscle damage and the repeated-bout effect after a typical Nordic hamstring exercise session. Thirteen trained male adults were recruited. Muscle damage was monitored through eccentric strength, passive range of motion, muscle soreness, and muscle swelling. Assessments were performed at baseline and 1 (day 1), 2 (day 2), 3 (day 3), and 4 (day 4) days after 24 Nordic hamstring exercise repetitions. The procedures were replicated after 4 weeks to examine the repeated-bout effect. After the first bout, the hamstring eccentric strength decreased up to day 3 (effect size range:-2.28/-1.95). The passive range of motion decreased up to day 4 (effect size range:-1.62/-0.64), while the muscle soreness increased on day 2 (effect size=1.63) and day 3 (effect size=1.53). No change in muscle swelling was observed. After the second bout, the hamstring eccentric strength (effect size=- 1.20) decreased only on day 1. The passive range of motion decreased up to day 3 (effect size=- 0.85/-0.34). These changes were by a smaller magnitude compared to the first bout. The first Nordic hamstring exercise bout impaired hamstring strength and passive range of motion, with muscle soreness also perceived, while the second bout reduced muscle damage symptoms and shortened the time to recovery. While recovery is needed when a Nordic hamstring exercise session is performed for the first time, following Nordic hamstring exercise sessions may scarcely interfere with the training routine.</p>","PeriodicalId":14439,"journal":{"name":"International journal of sports medicine","volume":" ","pages":"759-767"},"PeriodicalIF":2.2,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144002779","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of resistance exercise on ambulatory blood pressure: systematic review & meta-analysis.","authors":"Heloisa Amaral Braghieri, Gustavo Oliveira da Silva, Breno Quintella Farah, Belinda J Parmenter, Hélcio Kanegusuku, Raphael Mendes Ritti-Dias, Marilia Correia","doi":"10.1055/a-2688-5151","DOIUrl":"https://doi.org/10.1055/a-2688-5151","url":null,"abstract":"<p><p>This systematic review/meta-analysis aimed to evaluate the effects of resistance exercise on ambulatory blood pressure (BP). PubMed, Web of Science, Scielo, Embase and Scopus databases were searched for crossover/controlled trials of resistance exercise in adults compared to a control group/condition from inception until May 2025. Mean differences with 95% confidence intervals were calculated (p<0.05 significant). Risk of bias was assessed by the Cochrane risk-of-bias tool for randomized trials. Twenty-six studies were included, 18 acute (immediate, short-term including 351 participants) and 8 chronic (long-term, including 356 participants), with mostly unclear/high risk of bias. Acutely resistance exercises reduced 24-hour diastolic BP in subjects with chronic diseases (-1.15mmHg; -2.08, -0.22; p=0.020), and lower daytime diastolic BP in healthy participants (-0.77mmHg, -1.51, -0.03; p=0.040). Chronically resistance training lowered 24-hour systolic (-3.99mmHg; -7.59, -0.39; p=0.030) and diastolic BP (-1.52mmHg; -2.67, -0.37; p=0.009) and daytime systolic/diastolic BP in subjects with chronic diseases (Systolic: -5.53mmHg; -8.83, -2.23; p=0.001; Diastolic: -1.86mmHg; -3.11, -0.61; p=0.003). In conclusion, resistance exercise promotes modest reductions in ambulatory blood pressure, especially among individuals with chronic diseases. The most consistent effects were observed for 24-hour and daytime systolic and diastolic BP. Acute reductions were smaller and limited to daytime diastolic BP.</p>","PeriodicalId":14439,"journal":{"name":"International journal of sports medicine","volume":" ","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144954308","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":"Does Breathing Every Two Cycles Reduce the Breaststroke Energy Cost?","authors":"Miriam Natacha Alves, Ana Sofia Monteiro, Ricardo J Fernandes, Tiago M Barbosa, Joao Paulo Vilas Boas","doi":"10.1055/a-2657-9181","DOIUrl":"10.1055/a-2657-9181","url":null,"abstract":"<p><p>World Aquatics rules require only part of the swimmer's head to break the surface each breaststroke cycle. We aimed to assess the impact of breathing every one or two cycles in breaststroke on energy cost (C) and related bioenergetic variables. Fifteen swimmers completed a 6-week intervention to learn the new breathing pattern, followed by a 5×200-m step test (0.05-m∙s^-1 increments, 30-s rest) in both patterns. Oxygen consumption (VO₂) and blood lactate ([La^-]) were measured to calculate energy expenditure (<i>E</i> _tot) and C. Linear and exponential regressions were computed between <i>E</i> _tot and velocity. Paired <i>t</i>-tests and ANCOVA were applied, controlling for World Aquatics points and age. [La^-] peak, VO₂ peak, <i>E</i> _tot, and C were lower at some intensities when breathing every cycle. Adjusted analyses showed higher <i>E</i> _tot with breathing every two cycles at steps 1, 2, and 5. Linear and exponential regressions showed strong associations for both breathing patterns (<i>r</i> ²=0.74 vs. 0.72, respectively). Individual regressions showed similar patterns in some swimmers, while others differed. Breathing every two cycles elicited higher bioenergetic responses at steps 1, 2, and 5 and did not prove effective during incremental 200-m efforts when compared to the traditional breathing pattern.</p>","PeriodicalId":14439,"journal":{"name":"International journal of sports medicine","volume":" ","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144873171","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}