Pathophysiology of exercise intolerance in chronic diseases: the role of diminished cardiac performance in mitochondrial and heart failure patients

Autor: McCoy, Jodi, Bates, Matthew, Eggett, Christopher, Siervo, Mario, Cassidy, Sophie, Newman, Jane, Moore, Sarah A., Gorman, Grainne, Trenell, Michael I., Velicki, Lazar, Seferovic, Petar M., Cleland, John G.F., MacGowan, Guy A., Turnbull, Doug M., Jakovljevic, Djordje G.
Jazyk: angličtina
Rok vydání: 2017
Předmět:
Zdroj: Open Heart
ISSN: 2053-3624
Popis: Objective: Exercise intolerance is a clinical hallmark of chronic conditions. The present study determined pathophysiological mechanisms of exercise intolerance in cardiovascular, neuromuscular, and metabolic disorders.\ud \ud Methods: In a prospective cross-sectional observational study 152 patients (heart failure reduced ejection fraction, n=32; stroke, n=34; mitochondrial disease, n=28; type two diabetes, n=28; and healthy controls, n=30) performed cardiopulmonary exercise testing with metabolic and haemodynamic measurements. Peak exercise O2 consumption and cardiac power output were measures of exercise tolerance and cardiac performance.\ud \ud Results: Exercise tolerance was significantly diminished in patients compared with controls (ie, by 45% stroke, 39% mitochondria disease, and 33% diabetes and heart failure, p
Databáze: OpenAIRE