The effect of using a sports application on the quality of sleep in patients with heart failure: a randomized clinical trial study.

"Declarations Ethics approval and consent to participateA protocol for this study has been registered with the Iranian Clinical Trial Registry (IRCT20191123045475N1), registered on 16 December 2019. This study was approved by the Ethics Committee at the Kerman University of Medical Sciences (IR.KMU.REC. 1398.377). The study was conducted following the ethical standards outlined in the Helsinki Declaration. As part of the recruitment process, each participant provided informed written consent. The written informed consent of illiterate participants was obtained from their legally authorized representatives. Participants could withdraw from the study at any time. Each participant was assigned a serial number during the study for identification and data entry purposes. All data was kept confidential on a password-protected computer. Only members of the research team had access to the data. Following the completion of the study, the sports application was installed for the control group, and they were instructed on how to perform the exercises. Consent for publicationNot applicable. Competing interestsThe authors declare no competing interests. Competing interests The authors declare no competing interests."

"Funding Not applicable."

"Trial registration Iranian Registry of Clinical Trials: IRCT. 2019123045475N1.” Registered 16 December 2019."