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Exercise and Cardiac Stunning During HD
The purpose of this study is to determine the effect of a 12-week cycling during hemodialysis program on hemodialysis-induced myocardial stunning in adult individuals receiving hemodialysis.
Study details:
People with kidney failure receiving chronic hemodialysis (HD) suffer from post-HD treatment fatigue, poor functional status and high rates of cardiac failure and death. Previous work has shown that these outcomes are correlated with recurrent ischemic cardiac injury (myocardial stunning) that occurs during HD treatments. Myocardial stunning, identified by regional cardiac wall motion abnormalities (RWMA), is common during HD.
Intradialytic cycling (during HD) decreases HD-induced stunning, and may improve adverse outcomes associated with stunning. We will use echocardiography (echo) to understand the effects of intradialytic aerobic exercise on myocardial stunning and HD-related symptoms.
Eligibility criteria
Researchers look for people who fit a certain description, called eligibility criteria. See if you qualify.
Inclusion criteria
Exclusion criteria
Eligibility
Age eligible for study : 18 and older
Healthy volunteers accepted : No
Gender eligible for study: All
Things to know
Study dates
Study start: 2023-03-01
Primary completion: 2025-03-01
Study completion finish: 2025-09-01
Study type
TREATMENT
Phase
NA
Trial ID
NCT04877041
Intervention or treatment
BEHAVIORAL: Intradialytic Cycling
Conditions
- • End-stage Kidney Disease
- • Hemodialysis
Find a site
Closest Location:
University of South Australia
Research sites nearby
Select from list below to view details:
University of South Australia
Adelaide, South Australia, Australia
Study Plan
This section provides details of the study plan, including how the study is designed and what the study is measuring.
How is the study designed?
| Participant Group/Arm | Intervention/Treatment |
|---|---|
EXPERIMENTAL: Exercise (Intradialytic Cycling)
| BEHAVIORAL: Intradialytic Cycling
|
NO_INTERVENTION: Usual Care
| Not specified |
What is the study measuring?
Primary outcome
| Primary Outcome Measure | Primary Outcome Description | Primary Outcome Time Frame |
|---|---|---|
| Change in number of cardiac RWMA at peak hemodialysis stress (last 30 min HD) from baseline to 12 weeks measured using echocardiography | Using standard left ventricular apical 2-, 3-, and 4-chamber views and left ventricular parasternal short-axis views collected by the same trained operator at each site 3 times during the mid-week hemodialysis session at each assessment time point as follows: baseline (pre hemodialysis), post-cycling exercise (or mid-dialysis in controls) and at peak hemodialysis stress (\~30 min prior to end of hemodialysis). Echocardiogram image analysis will be performed in London, ON using automated speckle-tracking analysis (EchoPAC-PC software version 110.1.3; GE Healthcare). | Baseline to 12 weeks |
Secondary outcome
| Secondary Outcome Measure | Secondary Outcome Description | Secondary Outcome Time Frame |
|---|---|---|
| Change in post-hemodialysis high sensitivity Troponin T level from baseline to 12 weeks | Measured by Roche High-Sensitivity Troponin T assay at each site. | Baseline to 12 weeks |
| Change in difference between pre-hemodialysis and post-hemodialysis Troponin T from baseline to 12 weeks | Measured by Roche High-Sensitivity Troponin T assay at each site. | Baseline to 12 weeks |
| Change in severity of post-hemodialysis fatigue | Assessed by the self-reported answer (in minutes) to the question: "How long does it take you to recover from a dialysis session and resume your normal, usual activities?" | Baseline to 12 weeks |
| Change in Symptom Burden | Measured using the Dialysis Symptom Index (DSI) Severity Score. Score 0 to 150 with 0 no symptoms and 150 most number and severity of symptoms | Baseline to 12 weeks |
| Change in Exercise Capacity | Measured by the Incremental Shuttle Walk Test (ISWT) | Baseline to 12 weeks |
| Change in Physical Activity Behaviour Patterns | Assessed using total active minutes per day as measure by multi-directional accelerometry | Baseline to 12 weeks |
| Change in number of regional wall motion abnormalities at peak HD stress | Measured at each study time point to further assess how exercise training effects HD-related cardiac stunning over time | Baseline to 1 week |
| Change in number of regional wall motion abnormalities at peak HD stress | Measured at each study time point to further assess how exercise training effects HD-related cardiac stunning over time | Baseline to 16 weeks |
| Feasiblity - Recruitment | Proportion of individuals eligible for study that were recruited | Baseline to 12 weeks |
| Feasibility - Eligibility | Proportion of individuals approached eligible for enrolment into study | Baseline to 12 weeks |
| Feasibility - Adherence | Proportion of participants that completed the study | Baseline to 16 weeks |
| Feasibility - Exercise Adherence: Proportion of exercise sessions completed | Proportion of total exercise sessions during study completed | Baseline to 12 weeks |
| Feasibility - Exercise Adherence: Total minutes of exercise | Proportion of total possible minutes of intradialytic cycling completed during the study | Baseline to 12 weeks |
| Change in Cognitive Function | Change in cognitive function score measured by Cambridge Brain Science testing | Baseline to 12 weeks |
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