Publikasjoner/publications


Arrhythmia burden, symptoms and quality of life in female and male endurance athletes with paroxysmal atrial fibrillation: a multicentre cohort study in Norway, Australia and Belgium. Apelland T, Letnes JM, Janssens K, Claessen G, Tveit A, Sellevold AB, Mitchell A, Willems R, Onarheim S, Enger S, Kizilkilic SE, Miljoen H, Elliott A, Loennechen JP, La Gerche A, Myrstad M; NEXAF investigators. BMJ Open. 2025 Aug 15(8):e100496. doi: 10.1136/bmjopen-2025-100496. PMID: 40764068 Free PMC article.

The fitter the better? The relationship between high cardiorespiratory fitness and risk of atrial fibrillation and stroke. Myrstad, M. & Elliot, A. Expert review of cardiovascular therapy. 2025, 23 mar, 57-60. doi: 10.1080/14779072.2025.2476123. PMID: 40040354 Free PMC article.

Damenes pokal of medaljens bakside. Myrstad M; NEXAF investigators. Tidsskrift for Den norsk legeforening. 2024 Mar 10. doi: 10.4045/tidsskr.25.0080. PMID: 40145220 Free PMC article.
Effects of 1-year exercise in patients with atrial fibrillation: study protocol for the Norwegian Exercise in Atrial Fibrillation (NEXAF) randomised controlled trial. Nes BM, Letnes JM, Johnson KE, Sellevold AB, Byrkjeland R, Brown FP, Follestad T, Dalen H, Wisløff U, Løchen ML, Tveit A, Morseth B, Myrstad M, Loennechen JP; NEXAF consortium; The NEXAF consortium. Open Heart. 2025 Mar 22;12(1):e003077. doi: 10.1136/openhrt-2024-003077. PMID: 40122568 Free PMC article.
Cardiac arrhythmia assessment with patch electrocardiogram versus insertable cardiac monitor: a cohort study in endurance athletes with atrial fibrillation. Apelland T, Sellevold AB, Letnes JM, Onarheim S, Enger S, Tveit A, Delpire B, Claessen G, La Gerche A, Loennechen JP, Berge T, Myrstad M; NEXAF Investigators; NEXAF investigators. BMJ Open. 2025 Jan 6;15(1):e093250. doi: 10.1136/bmjopen-2024-093250. PMID: 39762092
Atrial fibrillation in female endurance athletes. Myrstad M, Johansen KR, Sørensen E, Løchen ML, Ranhoff AH, Morseth B. Eur J Prev Cardiol. 2024 Mar 27;31(5):e27-e29. doi: 10.1093/eurjpc/zwad218. PMID: 37478377 No abstract available.
Rationale and design of the Birkebeiner Ageing Study – a prospective cohort study of older endurance athletes. Myrstad M, Johansen KR, Sørensen E, Ranhoff AH. BMC Geriatr. 2023 Jun 13;23(1):365. doi: 10.1186/s12877-023-04099-3. PMID: 37308811 Free PMC article.
Left atrial dyssynchrony in veteran endurance athletes with and without paroxysmal atrial fibrillation. Sørensen E, Myrstad M, Solberg MG, Øie E, Platonov PG, Carlson J, Tveit A, Aarønaes M. Echocardiography. 2023 Jul;40(7):679-686. doi: 10.1111/echo.15634. Epub 2023 Jun 6. PMID: 37279187
Ten-year mortality among older male recreational endurance athletes in the Birkebeiner Aging Study in comparison with older men from the Tromsø Study. Johansen KR, Ranhoff AH, Sørensen E, Nes BM, Bucher-Sandbakk S, Wilsgaard T, Løchen ML, Thelle DS, Morseth B, Myrstad M; NEXAF. Scand J Med Sci Sports. 2023 Aug;33(8):1541-1551. doi: 10.1111/sms.14385. Epub 2023 May 10. PMID: 37161736
Effects of training adaption in endurance athletes with atrial fibrillation: protocol for a multicentre randomised controlled trial. Apelland T, Janssens K, Loennechen JP, Claessen G, Sørensen E, Mitchell A, Sellevold AB, Enger S, Onarheim S, Letnes JM, Miljoen H, Tveit A, La Gerche A, Myrstad M; NEXAF investigators. BMJ Open Sport Exerc Med. 2023 Apr 11;9(2):e001541. doi: 10.1136/bmjsem-2023-001541. eCollection 2023. PMID: 37073174 Free PMC article.
Exercise-Induced Cardiac Remodeling and Atrial Fibrillation in Female Endurance Athletes. Myrstad M, Sørensen E, Janssens K, Mitchell A, Apelland T, Claessen G, La Gerche A. J Am Soc Echocardiogr. 2023 Mar;36(3):344-345. doi: 10.1016/j.echo.2022.12.006. Epub 2022 Dec 10. PMID: 36513172 No abstract available.
Risk of atrial fibrillation and stroke among older men exposed to prolonged endurance sport practice: a 10-year follow-up. The Birkebeiner Ageing Study and the Tromsø Study. Johansen KR, Ranhoff AH, Sørensen E, Nes BM, Heitmann KA, Apelland T, Bucher Sandbakk S, Wilsgaard T, Løchen ML, Thelle DS, Morseth B, Myrstad M; NEXAF initiative. Open Heart. 2022 Nov;9(2):e002154. doi: 10.1136/openhrt-2022-002154. PMID: 36396296 Free PMC article.
Right Heart Structure and Function in Lifelong Recreational Endurance Athletes with and without Paroxysmal Atrial Fibrillation. Sørensen E, Myrstad M, Solberg MG, Øie E, Tveit A, Aarønæs M. J Am Soc Echocardiogr. 2022 Dec;35(12):1259-1268. doi: 10.1016/j.echo.2022.06.008. Epub 2022 Jun 26. PMID: 35760278
Left atrial function in male veteran endurance athletes with paroxysmal atrial fibrillation. Sørensen E, Myrstad M, Solberg MG, Øie E, Tveit A, Aarønæs M. Eur Heart J Cardiovasc Imaging. 2021 Dec 18;23(1):137-146. doi: 10.1093/ehjci/jeab248. PMID: 34849678 Free PMC article.
Stroke in endurance athletes with atrial fibrillation. Myrstad M, Berge T, Ihle-Hansen H, Sørensen E, Nystad W, Ranhoff AH, Aarønæs M. Eur J Prev Cardiol. 2020 Dec;27(19):2123-2125. doi: 10.1177/2047487319866273. Epub 2019 Jul 26. PMID: 31349773 No abstract available.
Lower bone mineral density in older female endurance skiers – a cross-sectional, observational study. Gulsvik AK, Myrstad M, Landgraff IW, Emaus N, Ranhoff AH. Eur Rev Aging Phys Act. 2018 Nov 17;15:12. doi: 10.1186/s11556-018-0202-1. eCollection 2018. PMID: 30473734 Free PMC article.
Exercise in individuals with atrial fibrillation. Myrstad M, Malmo V, Ulimoen SR, Tveit A, Loennechen JP. Clin Res Cardiol. 2019 Apr;108(4):347-354. doi: 10.1007/s00392-018-1361-9. Epub 2018 Aug 22. PMID: 30135995 Review.
The ambiguity of physical activity, exercise and atrial fibrillation. Morseth B, Løchen ML, Ariansen I, Myrstad M, Thelle DS. Eur J Prev Cardiol. 2018 Apr;25(6):624-636. doi: 10.1177/2047487318754930. Epub 2018 Feb 7. PMID: 29411631 Review.
Physical activity, symptoms, medication and subjective health among veteran endurance athletes with atrial fibrillation. Myrstad M, Aarønæs M, Graff-Iversen S, Ariansen I, Nystad W, Ranhoff AH. Clin Res Cardiol. 2016 Feb;105(2):154-61. doi: 10.1007/s00392-015-0898-0. Epub 2015 Jul 26. PMID: 26210772
Does endurance exercise cause atrial fibrillation in women? Myrstad M, Aarønæs M, Graff-Iversen S, Nystad W, Ranhoff AH. Int J Cardiol. 2015 Apr 1;184:431-432. doi: 10.1016/j.ijcard.2015.03.018. Epub 2015 Mar 3. PMID: 25755060 No abstract available.
Effect of years of endurance exercise on risk of atrial fibrillation and atrial flutter. Myrstad M, Nystad W, Graff-Iversen S, Thelle DS, Stigum H, Aarønæs M, Ranhoff AH. Am J Cardiol. 2014 Oct 15;114(8):1229-33. doi: 10.1016/j.amjcard.2014.07.047. Epub 2014 Jul 30. PMID: 25169984
Increased risk of atrial fibrillation among elderly Norwegian men with a history of long-term endurance sport practice. Myrstad M, Løchen ML, Graff-Iversen S, Gulsvik AK, Thelle DS, Stigum H, Ranhoff AH. Scand J Med Sci Sports. 2014 Aug;24(4):e238-44. doi: 10.1111/sms.12150. Epub 2013 Nov 21. PMID: 24256074 Free PMC article.
Atrial fibrillation, physical activity and endurance training. Graff-Iversen S, Gjesdal K, Jugessur A, Myrstad M, Nystad W, Selmer R, Thelle DS. Tidsskr Nor Laegeforen. 2012 Feb 7;132(3):295-9. doi: 10.4045/tidsskr.11.0567. PMID: 22314739 English, Norwegian.