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A single bout of hybrid intradialytic exercise did not affect left-ventricular function in exercise-naïve dialysis patients: a randomized, cross-over trial.

Grigoriou, SS, Giannaki, CD, George, KP, Karatzaferi, C, Zigoulis, P, Eleftheriadis, T, Stefanidis, I and Sakkas, GK (2021) A single bout of hybrid intradialytic exercise did not affect left-ventricular function in exercise-naïve dialysis patients: a randomized, cross-over trial. International Urology and Nephrology. ISSN 0301-1623

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Abstract

INTRODUCTION: Cardiovascular diseases are the leading cause of mortality in end-stage renal disease (ESRD) patients, especially those receiving hemodialysis (HD) therapy. HD has many side effects that are related to patients' hearts, such as recurrent myocardial ischemia and global or segmental left-ventricular dysfunction, which is associated with intradialytic hypotension, long-term loss of systolic function, and high incidence of cardiovascular events and death. Systematic exercise training has a beneficial effect on measures of cardiovascular fitness and reducing cardiovascular risk factors in ESRD. Whether there is an acute benefit of exercise during HD on left-ventricular function is not well known. The current study aimed to investigate whether a single bout of hybrid (aerobic and resistance) intradialytic exercise could affect left-ventricular function during HD sessions. METHODS: Twenty-one exercise naïve and clinically stable HD patients participated in the study. All participants completed two different HD trials on two different days, separated by 1 week: (1) standard HD and (2) HD including a single bout of hybrid intradialytic exercise. Hybrid intradialytic training included the usual intradialytic cycling followed by resistance training using elastic bands and dumbbells. Echocardiographic assessment of left-ventricular function was completed before HD, half an hour before the end of HD, and 30 min after the end of HD. RESULTS: Cohort data for left-ventricular function indices were not different between trials and did not change across time in either the standard HD or HD plus exercise trial. Cohort data for the change in ejection fraction from baseline to during HD did mask considerable inter-individual variability (HD - 0 ± 15; HD plus exercise (- 2 ± 20). Despite this, the variability was not mediated by the addition of intradialytic hybrid exercise. CONCLUSION: A single bout of hybrid intradialytic exercise did not affect left-ventricular function during the HD therapy. It is important to determine whether chronic exercise training could beneficially affect left-ventricular function abnormalities often observed during the HD therapy. TRIAL REGISTRATION NUMBER: The study is registered at ClinicalTrials.gov (NCT01721551) as a clinical trial.

Item Type: Article
Additional Information: This is a post-peer-review, pre-copyedit version of an article published in International Urology and Nephrology. The final authenticated version is available online at: http://dx.doi.org/10.1007/s11255-021-02910-x
Uncontrolled Keywords: 1103 Clinical Sciences
Subjects: R Medicine > RC Internal medicine > RC1200 Sports Medicine
Divisions: Sport & Exercise Sciences
Publisher: Springer
Related URLs:
Date Deposited: 17 Jun 2021 10:17
Last Modified: 04 Sep 2021 05:21
DOI or Identification number: 10.1007/s11255-021-02910-x
URI: https://researchonline.ljmu.ac.uk/id/eprint/15135

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