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dc.contributor.authorDawkins, Tony G.
dc.contributor.authorShave, Rob
dc.contributor.authorBaggish, Aaron
dc.contributor.authorDrane, Aimee
dc.contributor.authorParisi, Erika
dc.contributor.authorRoberts, Michael
dc.contributor.authorJustin, Roberts,
dc.date.accessioned2019-07-31T15:44:03Z
dc.date.available2019-07-31T15:44:03Z
dc.date.issued2019-07-31
dc.identifier.citationDawkins , T G , Shave , R , Baggish , A , Drane , A , Parisi , E , Roberts , M & Justin , R 2019 , ' Electrocardiographic changes following six-months of long-distance triathlon training in previously recreationally active individuals ' , European Journal of Sport Science . https://doi.org/10.1080/17461391.2019.1641556
dc.identifier.issn1746-1391
dc.identifier.otherPURE: 13112430
dc.identifier.otherPURE UUID: 27a99f9d-0d2a-4929-8adf-b4174d498fd4
dc.identifier.otherScopus: 85088065066
dc.identifier.urihttp://hdl.handle.net/2299/21499
dc.description.abstractBackground: Clinical electrocardiographic (ECG) guidelines for athlete’s heart are based upon cross-sectional data. We aimed to longitudinally evaluate the influence of endurance training on the ECG and compare the prevalence of ECG abnormalities defined by contemporary criteria. Methods: A group of 66 training-naïve individuals completed a six-month training programme with resting ECGs and cardiopulmonary exercise tests performed at baseline, two and six months. Data were analysed using repeated measures analysis of variance and the prevalence of ECG abnormalities compared between proposed criteria. Results: Maximal oxygen consumption increased from 45.4 ± 7.1 to 50.3 ± 7.1 ml·kg−1·min−1 (p < 0.05) pre-to-post training. ECG changes included, bradycardia (60 ± 12 vs. 53 ± 8 beats·min−1; p < 0.05), shorter P wave duration (106 ± 10 vs. 103 ± 11 ms; p < 0.05), reduced QTc (413 ± 27 vs. 405 ± 22 ms; p < 0.05), and increased left ventricular Sokolow-Lyon index (2.45 ± 0.66 vs. 2.62 ± 0.78 mV; p < 0.05). 85% of individuals showed ≥1 ‘training-related’ ECG finding at six months vs. 68% at baseline. Using the 2013 Seattle Criteria, 4 ECGs were ‘abnormal’ at baseline and 3 at month six vs. 2 at baseline and 1 at month six, using the 2017 International Consensus. Prevalence of ‘borderline’ findings did not increase with training (11% at baseline and six months). Conclusion: Six-months endurance training leads to a greater prevalence of ‘training-related’ but not ‘borderline’ or ‘training-unrelated’ ECGs. ‘Borderline findings’ may not necessarily represent training-related cardiac remodelling in novice athletes following a six-month training intervention.en
dc.language.isoeng
dc.relation.ispartofEuropean Journal of Sport Science
dc.titleElectrocardiographic changes following six-months of long-distance triathlon training in previously recreationally active individualsen
dc.contributor.institutionDepartment of Psychology and Sports Sciences
dc.contributor.institutionAgriculture, Veterinary and Food Sciences
dc.contributor.institutionCentre for Research in Psychology and Sport Sciences
dc.contributor.institutionSport, Health and Exercise
dc.contributor.institutionAdaptive Physiology and Functional Nutrition
dc.contributor.institutionHealth and Wellbeing
dc.contributor.institutionSchool of Life and Medical Sciences
dc.description.statusPeer reviewed
dc.date.embargoedUntil2020-07-31
rioxxterms.versionAM
rioxxterms.versionofrecordhttps://doi.org/10.1080/17461391.2019.1641556
rioxxterms.typeJournal Article/Review
herts.preservation.rarelyaccessedtrue


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