Sleep-related predictors of quality of life in the elderly versus younger heart failure patients: a questionnaire survey.

Background: Research has indicated that sleep disorders reduce the quality of life of heart failure patients.

Objectives: To investigate quality of sleep, and the impact of poor sleep on quality of life among elderly versus younger heart failure patients.

Design: A two-group, cross-sectional study.

The effectiveness of intradialytic leg ergometry exercise for improving sedentary life style and fatigue among patients with chronic kidney disease: a randomized clinical trial.

Background: Over the past three decades, research has been carried out on the effects of exercise on chronic kidney disease patients for improving their physical potential.

Objectives: The purpose of this study is to evaluate the effect of intradialytic leg ergometry exercise for improving fatigue and daily physical activity levels among chronic kidney disease patients.

Design: A quasi-experimental clinical trial.