Lavie, Carl J Critical impact of fitness in the prevention and treatment of heart failure. [electronic resource] - American heart journal Feb 2015 - 194-6 p. digital Publication Type: Editorial ISSN: 1097-6744 Standard No.: 10.1016/j.ahj.2014.11.006 doi Subjects--Topical Terms: Heart Failure--diagnosisHumansMotor Activity--physiologyPhysical Fitness--physiologyPrognosisProtective FactorsRisk Factors