Prevalence of Coronary Atherosclerosis in Master Female Endurance Athletes

BACKGROUND: Studies in ostensibly healthy male master athletes have revealed a greater prevalence of coronary artery calcification (CAC) and coronary plaques compared with relatively sedentary counterparts. In contrast, data relating to potentially adverse coronary remodelling in female master athletes is sparse and conflicting. We investigated the prevalence of coronary atherosclerosis in a cohort of predominantly post-menopausal female master athletes with a low atherosclerotic risk profile. METHODS: 196 female athletes with a mean age of 55±7 years-old and median exercise duration of 33 years (25-39) and 59 relatively sedentary females of similar age underwent cardiovascular investigations including a coronary computed tomogram angiography with assessment of CAC scores, coronary plaques, and pericoronary adipose tissue attenuation. 70% of the athletes and 68% of the control group were post-menopausal. RESULTS: Athletes and controls had a similarly low Framingham 10-year risk (1.49% versus 2.1%; P=0.68), but body mass index and blood pressure were lower and HDL-C was higher in the athletes. The prevalence of CAC score >0 Agatston units (AU) was low and did not differ between athletes and controls (21% versus 32%;P=0.073). Female athletes had a lower prevalence of a CAC score >50th centile (19% versus 32%;P<0.03) and >75th centile (14% versus 25%;P=0.045) for age compared with controls, but the prevalence of a CAC score >100 AU did not differ between the groups (3.6% versus 8.5%;P=0.12). There were also no differences between the groups in the prevalence of individuals with coronary plaques (21% versus 32%;P=0.09), total plaque volume (16 mm3 [IQR 3-56] versus 49 [5-142] mm3;P=0.08), or plaque burden (10.8% [2.8-21] versus 15.4% [4.6-28];P=0.46). Coronary plaques were predominantly calcified in both athletes and controls (80% versus 63%;P=0.08). Age, blood pressure and HDL-C were independent predictors for a CAC score >0 AU among athletes. CONCLUSIONS: In contrast with previous studies in male master athletes, lifelong exercise in female counterparts does not appear to be associated with increased CAC score, coronary plaque burden or any qualitative differences in coronary plaque compared with relatively sedentary healthy counterparts. Coronary atherosclerosis in master female athletes is mainly driven by traditional risk factors. ### Competing Interest Statement The authors have declared no competing interest. ### Funding Statement Dr Efstathios Papatheodorou was funded by a research grant provided by the charitable organisation, Cardiac Risk in the Young. ### Author Declarations I confirm all relevant ethical guidelines have been followed, and any necessary IRB and/or ethics committee approvals have been obtained. Yes The details of the IRB/oversight body that provided approval or exemption for the research described are given below: NHS Research Ethics Committee reference: 13/SW/0163 I confirm that all necessary patient/participant consent has been obtained and the appropriate institutional forms have been archived, and that any patient/participant/sample identifiers included were not known to anyone (e.g., hospital staff, patients or participants themselves) outside the research group so cannot be used to identify individuals. Yes I understand that all clinical trials and any other prospective interventional studies must be registered with an ICMJE-approved registry, such as ClinicalTrials.gov. I confirm that any such study reported in the manuscript has been registered and the trial registration ID is provided (note: if posting a prospective study registered retrospectively, please provide a statement in the trial ID field explaining why the study was not registered in advance). Yes I have followed all appropriate research reporting guidelines, such as any relevant EQUATOR Network research reporting checklist(s) and other pertinent material, if applicable. Yes Data available on request from the authors