Relationships Between Objectively Measured Physical Activity, Exercise Capacity, and Quality of Life in Older Patients With Obese Heart Failure and Preserved Ejection Fraction.

Background: The relationship between physical activity (PA), exercise capacity, and quality of life (QOL) in obese heart failure with preserved ejection fraction is poorly understood.

Methods And Results: This was an ancillary study to a clinical trial. Accelerometers were used to measure light PA, moderate to vigorous PA, total PA, PA energy expenditure, and steps.