{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,24]],"date-time":"2026-08-24T20:21:19Z","timestamp":1787602879890,"version":"build-2736575974"},"reference-count":16,"publisher":"Wiley","issue":"8","license":[{"start":{"date-parts":[[2026,7,29]],"date-time":"2026-07-29T00:00:00Z","timestamp":1785283200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2026,7,29]],"date-time":"2026-07-29T00:00:00Z","timestamp":1785283200000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Echocardiography"],"published-print":{"date-parts":[[2026,8]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Background<\/jats:title>\n                    <jats:p>Sprint exercise is characterized by repeated short\u2010duration high\u2010intensity anaerobic activity associated with distinct hemodynamic and autonomic adaptations. However, the effects of long\u2010term sprint training on left ventricular (LV) mechanics and myocardial work (MW) parameters remain insufficiently investigated. This study aimed to evaluate LV global longitudinal strain (GLS) and MW indices in competitive sprinters.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>A total of 65 competitive sprinters and 40 age\u2010 and sex\u2010matched healthy sedentary controls were prospectively enrolled. All participants underwent comprehensive transthoracic echocardiography, including two\u2010dimensional speckle\u2010tracking echocardiography and non\u2010invasive myocardial work analysis. GLS, global myocardial work index (GWI), global constructive work (GCW), global wasted work (GWW), and global myocardial work efficiency (GWE) were quantified.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      Resting heart rate was significantly lower, whereas stroke volume was significantly higher in sprinters compared with controls. However, LV GLS and principal MW indices, including GWI, GCW, GWW, and GWE, were comparable between groups (all\n                      <jats:italic>p<\/jats:italic>\n                      &gt; 0.05). Intra\u2010 and interobserver reproducibility for MW measurements demonstrated good\u2010to\u2010excellent agreement.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>Long\u2010term sprint training appears to be associated with preserved myocardial mechanics and myocardial work indices despite chronic exposure to high\u2010intensity anaerobic exercise, supporting the presence of physiological rather than maladaptive cardiac adaptation in competitive sprinters.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1111\/echo.70571","type":"journal-article","created":{"date-parts":[[2026,7,29]],"date-time":"2026-07-29T15:59:22Z","timestamp":1785340762000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Left Ventricular Mechanics and Myocardial Work in Competitive Sprinters"],"prefix":"10.1111","volume":"43","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-0010-6545","authenticated-orcid":false,"given":"Esra","family":"Poyraz","sequence":"first","affiliation":[{"name":"Department of Cardiology Dr. Siyami Ersek Cardiovascular and Thoracic Surgery Center  Istanbul Turkey"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Fatma","family":"Can","sequence":"additional","affiliation":[{"name":"Department of Cardiology Dr. Siyami Ersek Cardiovascular and Thoracic Surgery Center  Istanbul Turkey"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2026,7,29]]},"reference":[{"key":"e_1_2_10_2_1","doi-asserted-by":"publisher","DOI":"10.1055\/s\u20102007\u2010972911"},{"key":"e_1_2_10_3_1","doi-asserted-by":"publisher","DOI":"10.1093\/ehjci\/jeu323"},{"key":"e_1_2_10_4_1","doi-asserted-by":"publisher","DOI":"10.1007\/s11332\u2010026\u201001761\u20102"},{"key":"e_1_2_10_5_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41598\u2010026\u201035206\u20100"},{"key":"e_1_2_10_6_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.echo.2014.10.003"},{"key":"e_1_2_10_7_1","doi-asserted-by":"publisher","DOI":"10.1093\/eurheartj\/ehs016"},{"key":"e_1_2_10_8_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jacc.2016.12.037"},{"key":"e_1_2_10_9_1","doi-asserted-by":"publisher","DOI":"10.1007\/s10554\u2010020\u201001871\u2010z"},{"key":"e_1_2_10_10_1","doi-asserted-by":"publisher","DOI":"10.17294\/2330-0698.1730"},{"key":"e_1_2_10_11_1","doi-asserted-by":"publisher","DOI":"10.1056\/NEJM199101313240504"},{"key":"e_1_2_10_12_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.echo.2014.10.010"},{"key":"e_1_2_10_13_1","doi-asserted-by":"publisher","DOI":"10.1007\/s11936-018-0677-0"},{"key":"e_1_2_10_14_1","doi-asserted-by":"publisher","DOI":"10.3390\/jcm10194521"},{"key":"e_1_2_10_15_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0735-1097(19)32284-3"},{"key":"e_1_2_10_16_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0735-1097(24)04396-1"},{"key":"e_1_2_10_17_1","doi-asserted-by":"publisher","DOI":"10.4250\/jcu.2014.22.4.196"}],"container-title":["Echocardiography"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1111\/echo.70571","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/full-xml\/10.1111\/echo.70571","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1111\/echo.70571","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,8,24]],"date-time":"2026-08-24T19:28:42Z","timestamp":1787599722000},"score":1,"resource":{"primary":{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/10.1111\/echo.70571"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,7,29]]},"references-count":16,"journal-issue":{"issue":"8","published-print":{"date-parts":[[2026,8]]}},"alternative-id":["10.1111\/echo.70571"],"URL":"https:\/\/doi.org\/10.1111\/echo.70571","archive":["Portico"],"relation":{},"ISSN":["0742-2822","1540-8175"],"issn-type":[{"value":"0742-2822","type":"print"},{"value":"1540-8175","type":"electronic"}],"subject":[],"published":{"date-parts":[[2026,7,29]]},"assertion":[{"value":"2026-06-03","order":0,"name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"2026-07-18","order":2,"name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication History"}},{"value":"2026-07-29","order":3,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}],"article-number":"e70571"}}