{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2022,4,4]],"date-time":"2022-04-04T21:46:51Z","timestamp":1649108811329},"reference-count":31,"publisher":"Institute of Physiology of the Czech Academy of Sciences","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Physiol Res"],"published-print":{"date-parts":[[2017,2,28]]},"abstract":"<jats:p>Hypokalemia as a typical feature of primary aldosteronism (PA) is associated with muscle weakness and could contribute to lower cardiopulmonary fitness. The aim of this study was to describe cardiopulmonary fitness and exercise blood pressure and their determinants during a symptom-limited exercise stress test in patients with PA. We performed a cross-sectional study of patients with confirmed PA who were included before adrenal vein sampling on whom a symptom-limited exercise stress test with expired gas analysis was performed. Patients were switched to the treatment with doxazosin and verapamil at least two weeks before the study. In 27 patients (17 male) the VO2peak was 25.4\u00b16.0 ml\/kg\/min which corresponds to 80.8\u00b118.9 % of Czech national norm. Linear regression analysis shows that VO2peak depends on doxazosin dose (DX) (p=0.001) and kalemia (p=0.02): VO2peak = 4.2 \u2013 1.0 * DX + 7.6 * Kalemia. Patients with higher doxazosin doses had a longer history of hypertension and had used more antihypertensives before examination, thus indicating that VO2peak also depends on the severity of hypertension. In patients with PA, lower cardiopulmonary fitness depends inversely on the severity of hypertension and on lower plasma potassium level.<\/jats:p>","DOI":"10.33549\/physiolres.933320","type":"journal-article","created":{"date-parts":[[2019,12,6]],"date-time":"2019-12-06T13:13:44Z","timestamp":1575638024000},"page":"41-48","source":"Crossref","is-referenced-by-count":0,"title":["Lower Physical Fitness in Patients With Primary Aldosteronism Is Linked to the Severity of Hypertension and Kalemia"],"prefix":"10.33549","author":[{"given":"V.","family":"TUKA","sequence":"first","affiliation":[{"name":"Centre of Cardiovascular Rehabilitation, Third Department of Medicine \u2013 Department of Endocrinology and Metabolism of the First Faculty of Medicine, Charles University and General University Hospital in Prague, Czech Republic"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"M.","family":"MATOULEK","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"T.","family":"ZELINKA","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"J.","family":"ROSA","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"O.","family":"PETR\u00c1K","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"O.","family":"MIKE\u0160","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Z.","family":"KR\u00c1TK\u00c1","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"B.","family":"\u0160TRAUCH","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"R.","family":"HOLAJ","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"suffix":"Jr.","given":"J.","family":"WIDIMSK\u00dd","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"19169","published-online":{"date-parts":[[2017,2,19]]},"reference":[{"key":"ref0","unstructured":"ALBAGHDADI M: Baroreflex control of long-term arterial pressure. 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