Science & SportsPub Date : 2025-10-01Epub Date: 2025-08-26DOI: 10.1016/j.scispo.2025.02.011
E. Zakhem , R. Hurdiel , F. Fares , T. Pezé , Z. El Hage , R. El Hage
{"title":"Influence du statut pondéral sur l’atténuation du signal ultrasonique mesuré au niveau du calcanéum chez un groupe de jeunes femmes","authors":"E. Zakhem , R. Hurdiel , F. Fares , T. Pezé , Z. El Hage , R. El Hage","doi":"10.1016/j.scispo.2025.02.011","DOIUrl":"10.1016/j.scispo.2025.02.011","url":null,"abstract":"<div><h3>Introduction</h3><div>Le but de notre étude était d’étudier l’effet du statut pondéral sur l’atténuation du signal ultrasonique (BUA) mesurée au niveau du calcanéum chez un groupe de jeunes femmes.</div></div><div><h3>Synthèse des faits et résultats</h3><div>Trois cent vingt-neuf jeunes femmes (238 normo-pondérées, indice de masse corporel [IMC]<!--> <!--><<!--> <!-->25<!--> <!-->kg/m<sup>2</sup>) et 91 en surpoids (IMC<!--> <!-->><!--> <!-->25<!--> <!-->kg/m<sup>2</sup>) âgées en moyenne de 20,3 ans ont participé à cette étude. La taille, la masse grasse, la masse maigre, le tour de hanche et le tour de taille ont été mesurés. Des questionnaires validés ont été utilisés pour évaluer le niveau d’activité physique, la qualité de sommeil et la consommation calcique journalière. L’atténuation du signal ultrasonique (BUA) du calcanéum a été mesurée à l’aide d’un appareil d’ultrasonométrie valide (Pegasus Smart Medlink®). Les valeurs de la BUA étaient significativement supérieures (<em>p</em> <!--><<!--> <!-->0,01) dans le groupe en surpoids (76,43<!--> <!-->±<!--> <!-->6,62) par rapport au groupe normo-pondéré (74,42<!--> <!-->±<!--> <!-->5,5).</div></div><div><h3>Conclusion</h3><div>Notre étude suggère que la surcharge pondérale est associée à des valeurs de DMO plus élevées au niveau du calcanéum chez les jeunes femmes. Ainsi, la surcharge pondérale semble protéger contre les fractures ostéoporotiques du calcanéum chez les femmes.</div></div><div><h3>Introduction</h3><div>The aim of our study was to investigate the effect of weight status on broadband ultrasound attenuation (BUA) measured at the calcaneus in a group of young women.</div></div><div><h3>Summary of facts and results</h3><div>Three hundred and twenty-nine young women (238 normal-weight women, body mass index [BMI]<!--> <!--><<!--> <!-->25<!--> <!-->kg/m<sup>2</sup>) and 91 overweight women (BMI<!--> <!-->><!--> <!-->25<!--> <!-->kg/m<sup>2</sup>)] with an average age of 20.3 years participated in this study. Height, fat mass, lean mass, hip circumference and waist circumference were measured. Validated questionnaires were used to assess physical activity level, sleep quality and daily calcium intake. Broadband ultrasound attenuation (BUA) of the calcaneus was measured using a valid ultrasonometry device (Pegasus Smart Medlink®). BUA values were significantly higher (<em>P</em> <!--><<!--> <!-->0.01) in the overweight group (76.43<!--> <!-->±<!--> <!-->6.6) compared to the normal-weight group (74.42<!--> <!-->±<!--> <!-->5.5).</div></div><div><h3>Conclusion</h3><div>Our study suggests that being overweight is associated with greater BMD values at the calcaneus level in young women. Therefore, being overweight seems to protect against osteoporotic fractures at the calcaneus in women.</div></div>","PeriodicalId":21728,"journal":{"name":"Science & Sports","volume":"40 7","pages":"Pages 570-573"},"PeriodicalIF":1.0,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145060732","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}
Science & SportsPub Date : 2025-10-01Epub Date: 2025-08-13DOI: 10.1016/j.scispo.2025.06.004
T.S. Lyons, L.G. Killen, J.M. Green, G.A. Barker, N.L. Bishop, T.D. Higgins
{"title":"Effects of caffeine on selected performance measures in collegiate softball players","authors":"T.S. Lyons, L.G. Killen, J.M. Green, G.A. Barker, N.L. Bishop, T.D. Higgins","doi":"10.1016/j.scispo.2025.06.004","DOIUrl":"10.1016/j.scispo.2025.06.004","url":null,"abstract":"<div><h3>Objectives</h3><div>Despite the effects of caffeine on athletic performance being well established, little is known about the impact of caffeine on pitching accuracy and velocity or on hitting and running performance in Division 1 (D-1) softball athletes. The purpose of this study was to examine the effects of caffeine on pitch accuracy (PA), pitch velocity (PV), bat speed (BS), and sprint speed (SS) in division one collegiate softball athletes.</div></div><div><h3>Material and methods</h3><div>Ten D-1 softball athletes completed two double-blind, counterbalanced trials according to their respective positions following ingestion of 6<!--> <!-->mg/kg of caffeine or matched placebo an hour prior to data collection.</div></div><div><h3>Results</h3><div>For pitchers, PV was significantly elevated with caffeine at innings 4 (<em>P</em> <!-->=<!--> <!-->0.02) and 6 (<em>P</em> <!-->=<!--> <!-->0.05) and approached significance at innings 2 (<em>P</em> <!-->=<!--> <!-->0.08) and 3 (<em>P</em> <!-->=<!--> <!-->0.08). RPE with caffeine approached significance at innings 4 (<em>P</em> <!-->=<!--> <!-->0.06) and 5 (<em>P</em> <!-->=<!--> <!-->0.08). Post-trial surveys indicated significant feelings of restlessness (<em>P</em> <!-->=<!--> <!-->0.04) and muscle tremors (<em>P</em> <!-->=<!--> <!-->0.02) with caffeine and approached significance for greater sense of fatigue (<em>P</em> <!-->=<!--> <!-->0.08) and stomach distress (<em>P</em> <!-->=<!--> <!-->0.09). For position players, BS was significantly elevated with caffeine at innings 1 (<em>P</em> <!-->=<!--> <!-->0.02) and 4 (<em>P</em> <!-->=<!--> <!-->0.004). SS was significantly elevated with caffeine at innings 1 (<em>P</em> <!-->=<!--> <!-->0.01) and 4 (<em>P</em> <!-->=<!--> <!-->0.05) and approached significance at innings 3 (<em>P</em> <!-->=<!--> <!-->0.07) and 5 (<em>P</em> <!-->=<!--> <!-->0.07). Post-trial surveys indicated a greater sense of nervousness (<em>P</em> <!-->=<!--> <!-->0.05) with caffeine and approached significance for feelings of restlessness (<em>P</em> <!-->=<!--> <!-->0.07) and muscle tremors (<em>P</em> <!-->=<!--> <!-->0.06). These results demonstrate caffeine may enhance performance for pitchers and position players. However, these benefits may also be accompanied by adverse physiological and psychological effects.</div></div><div><h3>Objectifs</h3><div>Bien que les effets de la caféine sur la performance athlétique soient bien établis, on sait peu de choses sur l’impact de la caféine sur la précision et la vitesse du lancer ou sur les performances de frappe et de course chez des joueurs de softball de division 1 (D-1). Cette étude a examiné les effets de la caféine sur la précision du lancer (PA), la vitesse du lancer (PV), la vitesse de la batte (BS) et la vitesse de sprint (SS) chez des joueurs de softball.</div></div><div><h3>Matériel et méthodes</h3><div>Dix athlètes de softball D-1 ont terminé deux essais en double aveugle et contrebalancés en fonction de","PeriodicalId":21728,"journal":{"name":"Science & Sports","volume":"40 7","pages":"Pages 562-569"},"PeriodicalIF":1.0,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145060768","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}
Science & SportsPub Date : 2025-10-01Epub Date: 2025-07-09DOI: 10.1016/j.scispo.2025.02.010
C. Maitre , A.-C. Dupont , F. Morin , A. Valevicius , A.-S. Muller , A. Van Niekerk , M. Dupuit , A. Willame , C. Tooth
{"title":"Activité physique en post-partum : synthèse ReFORM de la position de consensus du Comité International Olympique","authors":"C. Maitre , A.-C. Dupont , F. Morin , A. Valevicius , A.-S. Muller , A. Van Niekerk , M. Dupuit , A. Willame , C. Tooth","doi":"10.1016/j.scispo.2025.02.010","DOIUrl":"10.1016/j.scispo.2025.02.010","url":null,"abstract":"","PeriodicalId":21728,"journal":{"name":"Science & Sports","volume":"40 7","pages":"Pages 574-576"},"PeriodicalIF":1.0,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145060733","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}
Science & SportsPub Date : 2025-10-01Epub Date: 2025-07-31DOI: 10.1016/j.scispo.2025.02.013
C. Shi , H. Liu , Y. Li , T. Fu , H. Zhao , X. Guo
{"title":"Bibliometric analysis of therapeutic exercises for cardiac rehabilitation: From 2000 to 2024","authors":"C. Shi , H. Liu , Y. Li , T. Fu , H. Zhao , X. Guo","doi":"10.1016/j.scispo.2025.02.013","DOIUrl":"10.1016/j.scispo.2025.02.013","url":null,"abstract":"<div><h3>Background</h3><div>Heart disease threatens human health, and therapeutic exercise (TE) is an important tool in cardiac rehabilitation (CR). This study used bibliometrics and visual analysis to provide a broad overview of the impact of TE on CR.</div></div><div><h3>Methods</h3><div>From January 1, 2000, to November 6, 2024, the Web of Science Core Collection core database was searched for literature on the effects of TE on CR. A total of 1541 articles were included and analyzed using CiteSpace, VOSveiver, and Bibliometrix R package software.</div></div><div><h3>Results</h3><div>Arnett DK's 2019 ACC/AHA guideline was the most cited (4764 citations). The “European Journal of Preventive Cardiology” has the highest number of publications and citations, with 70 publications and 3493 citations, respectively. The United States tops the list with 389 publications (25.2%). The University of São Paulo has the highest number of publications in this field, totaling 36 articles. Halle and Piepoli are the scholars with the highest number of publications and the longest research careers in this area, each with 17 publications and research spans of 20 and 21<!--> <!-->years, respectively. The evolution of the study population followed a sequence of men, women, adults, and older adults. “Quality of life (277 times, with a centrality of 0.37)” and “mortality (190 times, with a centrality of 0.23)” were the most frequent and central keywords. The top five popular research clusters were, in order, “heart failure (28 nodes),” “resistance training (26 nodes),” “physical activity (23 nodes),” “exercise training (23 nodes),” and “systematic review (21 nodes).” Nitric oxide has maintained the highest research heat for the longest duration, spanning from 2000 to 2015. “Controlled trial” is the keyword with the highest prominent intensity (strength 21.58). Heart failure is the primary cardiac disease that researchers in this field focus on. The impact of TE on the quality of life and mortality of patients undergoing CR is the core issue of concern in this area. The intervention validity of TE on CR represents the hottest research direction today.</div></div><div><h3>Conclusion</h3><div>Aerobic and resistance training are the most commonly used exercise therapies for CR. High-intensity interval training is poised to become a future research direction in TE. The methods, intensity, safety, and effectiveness of TE require further in-depth exploration. In addition, a long-term care system for TE in patients undergoing CR should be established.</div></div><div><h3>Contexte</h3><div>Les maladies cardiaques menacent la santé humaine, et l’exercice thérapeutique (ET) est un outil important dans la réadaptation cardiaque (RC). Cette étude a utilisé la bibliométrie et l’analyse visuelle pour fournir une vue d’ensemble élargie de l’impact de l’ET sur la RC.</div></div><div><h3>Méthodes</h3><div>Du 1<sup>er</sup> janvier 2000 au 6 novembre 2024, la base de données Web of Scie","PeriodicalId":21728,"journal":{"name":"Science & Sports","volume":"40 7","pages":"Pages 525-545"},"PeriodicalIF":1.0,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145059864","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}
Science & SportsPub Date : 2025-10-01Epub Date: 2025-07-23DOI: 10.1016/j.scispo.2025.05.001
L. Ren, Y.X. Chen, L. Yu
{"title":"Effects of the scheduled exercise on clock gene-related circulating miRNAs in human","authors":"L. Ren, Y.X. Chen, L. Yu","doi":"10.1016/j.scispo.2025.05.001","DOIUrl":"10.1016/j.scispo.2025.05.001","url":null,"abstract":"<div><h3>Objective</h3><div>Clock genes play an important role in the regulation of physiological function. Previous studies have found that scheduled exercise can effectively affect the molecular circadian clock in peripheral tissues. However, the mechanisms by which exercise affects clock genes are still not well understood. MicroRNAs (miRNAs) can be affected by exercise and regulate the expression of clock genes. Thus, we hypothesized that scheduled exercise could affect the level of miRNAs to regulate the molecular circadian clock.</div></div><div><h3>Methods</h3><div>Forty-six young healthy men were recruited. The relative changes in miRNAs in the blood of these individuals were tested after a scheduled exercise or sitting quietly as control. Then, an analysis to identify miRNAs that were differentially expressed between the two groups was performed. Next, the relationship of clock genes and the differentially expressed miRNAs was confirmed, and the co-expression relationships among the miRNAs and their target clock genes were analyzed via one-tailed Pearson analyses.</div></div><div><h3>Results</h3><div>Among the detected miRNAs, four of them hsa-miR-24, hsa-miR-107, hsa-miR-206, hsa-miR-142-3p had significant fold changes between scheduled exercise group and control group. And these four miRNAs have been reported that they can regulate the expression of core clock genes. Furthermore, correlation analysis showed that, in addition to hsa-miR-206, the contents of the other three miRNAs were linear dependence with their target core clock genes.</div></div><div><h3>Conclusions</h3><div>Our results suggest that the effect of scheduled exercise on miRNAs is related to molecular circadian clock and represent a new approach for interfering with clock genes.</div></div><div><h3>Objectif</h3><div>Les gènes d’horloge jouent un rôle important dans la régulation des fonctions physiologiques. Des études antérieures ont montré qu’un exercice programmé peut influencer l’horloge circadienne moléculaire dans les tissus périphériques. Cependant, les mécanismes par lesquels l’exercice affecte les gènes d’horloge ne sont pas encore parfaitement compris. Les microARNs (miARNs) peuvent être influencés par l’exercice et réguler l’expression des gènes d’horloge. Nous avons donc émis l’hypothèse qu’un exercice programmé pourrait affecter les niveaux de miARNs pour réguler l’horloge circadienne moléculaire.</div></div><div><h3>Méthodes</h3><div>Quarante-six jeunes hommes en bonne santé ont été recrutés. Les changements relatifs des miARNs dans le sang de ces individus ont été mesurés après un exercice programmé ou après qu’ils soient restés tranquillement assis en tant que contrôle. Par la suite, une analyse a été réalisée pour identifier les miARNs différentiellement exprimés entre les deux groupes. Ensuite, la relation entre les gènes d’horloge et les miARNs différentiellement exprimés a été confirmée, et les relations de co-expression entre les miARNs et leurs gèn","PeriodicalId":21728,"journal":{"name":"Science & Sports","volume":"40 7","pages":"Pages 554-561"},"PeriodicalIF":1.0,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145060767","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}
Science & SportsPub Date : 2025-10-01Epub Date: 2025-08-08DOI: 10.1016/j.scispo.2025.07.003
E. Vieira, M. Manent-Boutaud, F. Daphniet, A. Cugerone
{"title":"Comparaison des modalités de prescription de l’activité physique dans la prise en charge des troubles anxio-dépressifs : une revue systématique de la littérature","authors":"E. Vieira, M. Manent-Boutaud, F. Daphniet, A. Cugerone","doi":"10.1016/j.scispo.2025.07.003","DOIUrl":"10.1016/j.scispo.2025.07.003","url":null,"abstract":"<div><h3>Contexte</h3><div>Les syndromes anxieux et dépressifs sont des pathologies psychiatriques fréquentes et intriquées, aux conséquences lourdes, tant sur le plan individuel que socio-économique. Plusieurs études ont mis en évidence les bénéfices de l’activité physique (AP) dans la prise en charge des troubles anxio-dépressifs. Cependant, des incertitudes persistent quant aux modalités de prescription de cette dernière.</div></div><div><h3>Objectif</h3><div>Comparer les différents programmes d’activité physique prescrits dans la prise en charge des troubles anxio-dépressifs en soins primaires et identifier les facteurs conduisant à la réussite de ce traitement.</div></div><div><h3>Méthode</h3><div>Réalisation d’une revue systématique de la littérature incluant les études interventionnelles et épidémiologiques issues de 5 bases de données (Pubmed, Scopus, PsycInfo, PsycArticles, SPORTDiscus), respectant les lignes directrices PRISMA.</div></div><div><h3>Résultats</h3><div>Au total, 71 études ont été incluses, regroupant 9354 patients. L’analyse montre que tous les types d’activité physique sont efficaces dans la prise en charge des troubles anxio-dépressifs. Bien qu’il soit difficile de conclure, il semblerait que l’activité à faible intensité assure une meilleure adhésion de la part des participants. Par ailleurs, l’efficacité d’un programme est d’autant plus marquée que les séances sont régulières et réparties de manière fractionnée sur la semaine. En complément des séances encadrées, une pratique en autonomie contribue à renforcer et pérenniser les effets thérapeutiques obtenus. Enfin, seuls l’exercice aérobie et l’activité physique basée sur la pleine conscience semblent produire des effets bénéfiques durables à distance de l’intervention.</div></div><div><h3>Conclusion</h3><div>Différentes modalités de prescription (type, intensité, fréquence, durée des sessions) conduisent à une amélioration des troubles anxio-dépressifs. De futures études sont nécessaires afin d’évaluer l’efficacité des activités en résistance et de comparer différentes modalités de prescription entre elles (ex. : niveau d’intensité).</div></div><div><h3>Background</h3><div>Anxiety and depressive syndromes are common psychiatric conditions that are interconnected and have significant consequences, both individually and socio-economically. Several studies have highlighted the benefits of physical activity in managing anxiety-depressive disorders. However, uncertainties remain regarding the prescription modalities for physical activity.</div></div><div><h3>Objective</h3><div>To compare the different physical activity programs prescribed in the management of anxiety-depressive disorders in primary care and to identify the factors leading to the success of this treatment.</div></div><div><h3>Method</h3><div>A systematic literature review was conducted, incorporating interventional and epidemiological studies retrieved from five databases (PubMed, Scopus, PsycInfo, PsycArti","PeriodicalId":21728,"journal":{"name":"Science & Sports","volume":"40 7","pages":"Pages 451-480"},"PeriodicalIF":1.0,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145061647","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}
Science & SportsPub Date : 2025-08-01Epub Date: 2025-05-05DOI: 10.1016/j.scispo.2025.02.001
M. Střelecký , G. Berisha , L. Oreská , A. Černáčková , D. Hamar , B. Ravara , S. Zampieri , L. Pietrangelo , F. Protasi , H. Kern , Z. Killinger , J. Payer , M. Okuliarová , M. Zeman , L. Varga , M. Sedliak
{"title":"Hematology and muscle signature of elite master endurance runner with thalassemia","authors":"M. Střelecký , G. Berisha , L. Oreská , A. Černáčková , D. Hamar , B. Ravara , S. Zampieri , L. Pietrangelo , F. Protasi , H. Kern , Z. Killinger , J. Payer , M. Okuliarová , M. Zeman , L. Varga , M. Sedliak","doi":"10.1016/j.scispo.2025.02.001","DOIUrl":"10.1016/j.scispo.2025.02.001","url":null,"abstract":"<div><h3>Objectives</h3><div>A unique opportunity was used to examine the fitness parameters, bone mineral density and skeletal muscle characteristics of a 79-year-old Caucasian elite male master athlete (body height 168.2<!--> <!-->cm, body mass 59.5<!--> <!-->kg, BMI 21<!--> <!-->kg/m<sup>2</sup>) who won all major marathon events in his category (below 3<!--> <!-->h<!--> <!-->40) and in 2019 won the world championship title.</div></div><div><h3>Equipment and methods</h3><div>All of that despite the long-term diagnosis of inherited β-thalassemia minor. Muscle sampling was performed at rest and obtained from vastus lateralis.</div></div><div><h3>Results</h3><div>The individual's mean myofiber diameter results (58.60<!--> <!-->±<!--> <!-->13.92<!--> <!-->μm vs. 49.60<!--> <!-->±<!--> <!-->15.60<!--> <!-->μm) are very similar to the young counterparts and type II fibers were smaller and less represented (38 compared to 72%), as well as ultrastructure of skeletal fibers is well preserved. The two type-groupings refer to reinnervation events and circulating levels of C-terminal agrin fragment as a biomarker of neuromuscular junction destabilization was lower than in aged matched sedentary elderlies (5623<!--> <!-->pg/mL vs. 6350,7<!--> <!-->pg/mL). The relative lower body strength parameters showed similar values as aged-matched individuals (2.32<!--> <!-->NM/kg) and despite the volume of physical activity, the densitometry results showed osteopenia. The blood parameters showed decreaed hemoglobin (106<!--> <!-->g/L), and other erythrocytes related values. In conclusion, the diagnosis of heterozygote form of β-thalassemia is not precluding the positive and rejuvenating effect of a long-term endurance activity on functional, morphological and ultrastractural changes on neuromuscular system and fitness of an elite master endurance runner.</div></div><div><h3>Objectifs</h3><div>Une occasion unique a été utilisée pour examiner les paramètres de condition physique, la densité minérale osseuse et les caractéristiques musculaires squelettiques d’un athlète élite masculin de 79 ans (taille 168,2<!--> <!-->cm, masse corporelle 59,5<!--> <!-->kg, IMC 21<!--> <!-->kg/m<sup>2</sup>) qui a remporté tous les principaux événements de marathon dans sa catégorie (en dessous de 3<!--> <!-->h<!--> <!-->40) et a remporté le titre de champion du monde en 2019.</div></div><div><h3>Équipement et méthodes</h3><div>Tout cela malgré le diagnostic à long terme de β-thalassémie mineure héréditaire. L’échantillonnage musculaire a été effectué au repos et obtenu à partir du vaste latéral.</div></div><div><h3>Résultats</h3><div>Les résultats moyens du diamètre des myofibres de l’individu (58,60<!--> <!-->±<!--> <!-->13,92<!--> <!-->μm contre 49,60<!--> <!-->±<!--> <!-->15,60<!--> <!-->μm) sont très similaires à ceux des jeunes homologues et les fibres de type II étaient plus petites et moins représentées (38 contre 72 %), tout comme l’ultrastructure des fibres squelettiques est b","PeriodicalId":21728,"journal":{"name":"Science & Sports","volume":"40 5","pages":"Pages 397-407"},"PeriodicalIF":0.8,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144653072","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}