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Abstract

Background: Heart failure (HF) is a morbid illness with high mortality rate. Patients with HF necessitate a cardiac rehabilitation (CR) that is a planned, lasting care, which is highly cost effective in lowering hospital admission and improving quality of life. Objective: The aim of the study was to compare the effects of diaphragmatic breathing and incentive spirometer on endurance level in patients with mild heart failure. Methods: An experimental study, single-blinded design. Forty-five patients (25 males and 20 females) diagnosed with mild HF were nominated from the cardiac unit in king Abdulaziz University Hospital, Jeddah, KSA. Age range was 45-75, subjects were randomly allocated to three equal groups: the diaphragmatic breathing (DB), the incentive spirometer, and the control group. They were evaluated pre- and post-cardiac rehabilitation. Results: The results displayed a statistically significant rise in the six-minute walk test (6MWT) post-intervention vs pre-intervention in DB group (p=0.03), showing the efficacy of DB based on 6MWT results. Though there was a significant improvement in the rating of perceived exertion Borg scale post-intervention compared to pre-intervention in DB (p=0.01). As well, there was a statistically significant improved oxygen saturation post-intervention in the control group. Indicating efficacy of training on oxygen saturation. Conclusion: The results revealed the DB great effect on hemodynamic indices and improving cardiac function. Keywords: Heart failure, cardiac rehabilitation, diaphragmatic breathing and incentive spirometer

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