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Randomized Controlled Trial
. 2023 Apr 17;24(1):100.
doi: 10.1186/s12882-023-03158-6.

The effect of intradialytic exercise on dialysis patient survival: a randomized controlled trial

Mohammad Ali Tabibi  1 , Bobby Cheema  2   3   4 , Nasrin Salimian  5 , Hugo de Luca Corrêa  6 , Saghar Ahmadi  7
Affiliations
Randomized Controlled Trial

The effect of intradialytic exercise on dialysis patient survival: a randomized controlled trial

Mohammad Ali Tabibi et al. BMC Nephrol. .

Abstract

Background: Patients with kidney failure have a high mortality rate. This study aimed to evaluate the effect of intradialytic exercise on survival in patients receiving hemodialysis (HD).

Methods: In this randomized controlled trial conducted in a HD center in Iran, adult patients receiving chronic HD were randomized to intradialytic exercise (60 min) in the second hour of thrice weekly dialysis for 6 months (intervention) or no intradialytic exercise (control). The primary outcome was survival rate at 12 months. Secondary outcomes were serum albumin, hemoglobin, hematocrit, red blood cell count, serum calcium, serum phosphorous, parathyroid hormone, physical function (6-min walk test) and nutritional status (Geriatric Nutritional Risk Index) during the first 6 months. The trial follow-up period was 12 months.

Results: The study included 74 participants (44 males) with an age average of 64 ± 12 years old and a dialysis history of 27 ± 12 months, randomized to intervention (n = 37) or control (n = 37). Compared with controls, 1-year survival was higher in the intervention group (94% vs 73%, P = 0.01). The hazard ratio in univariate analysis in intervention group was 0.17 (95% CI 0.04-0.8; P = 0.02) compared to that in control group. During the 6-month intervention period, significant between-group changes were observed in all secondary outcomes between the intervention and control groups.

Conclusion: Intradialytic exercise performed for at least 60 min during thrice weekly dialysis sessions improves survival in adult patients receiving HD.

Trial registration: ClinicalTrials.gov Identifier: NCT04898608. Retrospectively registered on 24/05/2021. Registered trial name: The Effect of Intradialytic Exercise on Dialysis Patients Survival.

Keywords: Exercise during dialysis; Hematological Parameters; Mortality; Nutritional status; Physical function; Survival.

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Conflict of interest statement

The authors declare that they have no competing interest.

Figures

Fig. 1
Fig. 1
Participant flow during the study
Fig. 2
Fig. 2
Kaplan–Meier survival curve for patients randomly allocated to intradialytic exercise for 6 months (intervention) or usual care (control). The difference between the groups was statistically significant (p = 0.01)
See this image and copyright information in PMC

References

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