Trial reportPloS one2026
The effect of intradialytic resistance exercise on physical function and dialysis adequacy in patients on maintenance hemodialysis.
Trial report in PloS one, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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13 authors.
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Abstract
backgroundChronic kidney disease poses a growing global health concern and is linked to several complications with higher prevalence and intensity in the hemodialysis (HD) population. These complications contribute to high morbidity and mortality and are associated with poor physical function, and poor quality of life. Intradialytic exercise has emerged as a promising strategy to improve HD patients' clinically relevant outcomes.
aimsAssess the effect of intradialytic exercise on the functional and metabolic status of patients undergoing HD, and on their physical performance and evaluate its safety and feasibility.
methodsThis was a pre-experimental clinical trial conducted between February and August 2024, including adult patients on maintenance HD at Sahloul University Hospital. Patients underwent a supervised intradialytic resistance training twice or three times a week, over a period of 12 weeks.. Dialysis adequacy parameters, physical function, cardiovascular parameters, as well as patients' nutritional status were assessed before and after the intervention.
resultsOur study included 21 patient with a female predominance (76.2%). The population's mean age was 44.5 ± 10.4 years. A total of five patients (23.8%) received hemodialysis twice a week, while the remaining 16 patients underwent dialysis three times a week. Over the three-month intervention, the six minutes walk test distance improved significantly with a mean paired difference of 26.4 m (p = 0.007). As for cardiovascular parameters we noted that intradialytic blood pressure decreased from 121.7 mmHg to 112 mmHg (p = 0.03). Dialysis adequacy markers also showed significant increases in creatinine reduction ratio (p = 0.04) and Urea Reduction Ratio (p = 0.04). Furthermore nutritional status showed fewer patients at risk of malnutrition and BMI shifted toward healthier ranges.
conclusionOur study results suggest that three months of intradialytic resistance exercise safely improved HD patients' care including cardiovascular state, physical function and adequacy parameters. Further research especially combining resistance and aerobic exercise is needed to expand and generalize these results.
trial registrationThe trial was retrospectively registered with the Pan African Clinical Trial Registry (PACTR202506776186443).
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