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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT04098848
Other study ID # IRB106-139-A
Secondary ID
Status Completed
Phase N/A
First received
Last updated
Start date January 1, 2018
Est. completion date December 31, 2021

Study information

Verified date March 2022
Source Buddhist Tzu Chi General Hospital
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

To determine the effect of intradialytic cycling exercise on fatigability, sleep disorders, arterial stiffness and endothelial function in dialysis patients


Description:

The endothelium is a key regulator of vascular homeostasis and chronic exposure to vascular risk factors alters the regulatory properties of the endothelium, which progresses toward a pro-inflammatory pattern, senescence, and apoptosis. Endothelial cell integrity and function are critical to the prevention of atherosclerosis, and therefore endothelial cell injury and dysfunction are major steps in the development and progression of cardiovascular disease. Endothelial dysfunction may be the landmark of active disease process through the course of atherosclerotic cardiovascular disease, and a significant risk factor for future cardiovascular events. Several studies had reported that not only medical treatment but also exercise could improve physical and vascular functions, dialytic efficiency, quality of sleep, fatigue and depression et al. Exercise could be classified to aerobic, Anaerobic exercise and resistance et. Several studies have shown that regular cycling exercise in hemodialysis patients could improve physical activity, sleep quality, and reduce fatigability. Therefore, exercise plays an important role in hemodialysis patients. According to these benefits, the investigator's study was designed to explore the effects of intradialytic cycling exercise on sleep quality and fatigability, adipokines and myokinins levels in hemodialysis patients.


Recruitment information / eligibility

Status Completed
Enrollment 114
Est. completion date December 31, 2021
Est. primary completion date December 31, 2020
Accepts healthy volunteers No
Gender All
Age group 20 Years to 75 Years
Eligibility Inclusion Criteria: - Regular hemodialysis more than 3 months with 4 hours a time, thrice a week - Eligible to sign permit Exclusion Criteria: - Could not sign permit or do not want to join the trial - Infection - Amputation of any one of the lower limb - Hemodynamic unstable - Acute myocardial infarction (AMI) in recent 6 months - Unstable heart condition, such as unstable angina, arrythmia - Deep vein thrombosis (DVT) - History of kidney transplantation - Vascular access over lower limb

Study Design


Intervention

Other:
Cycling exercise
Intradialytic cycling exercise for 30 minutes a time

Locations

Country Name City State
Taiwan Buddhist Tzu Chi General Hospital Hualien City

Sponsors (1)

Lead Sponsor Collaborator
Buddhist Tzu Chi General Hospital

Country where clinical trial is conducted

Taiwan, 

Outcome

Type Measure Description Time frame Safety issue
Primary Change of the Functional Assessment of Chronic Illness Therapy -Fatigue (FACIT-F) score for 2 years Compare the FACIT-F score before, during and after intradialytic cycling exercise FACIT-F score is from 0-52 points; higher score represents less fatigue. pre-test and then every 3 months for 2 years
Primary Change of the Pittsburgh Sleep Quality Index (PSQI) score for 2 years Compare the PSQI score before, during and after intradialytic cycling exercise PSQI score is from 0-21 points; score>=5 means poor sleeping quality. pre-test and then every 3 months for 2 years
Primary Change of the carotid-femoral pulse wave velocity (cfPWV) for 2 years Compare the cfPWV before, during and after intradialytic cycling exercise
cfPWV measurement: a measure of aortic wall stiffness, increases markedly with age. Each set of pulse wave and ECG data to calculate the mean time difference between R-wave and pulse wave on a beat-to-beat basis, with an average of 10 consecutive cardiac cycles. The cfPWV will be calculated using the distance and mean time difference between the two recorded points.
Patients with cfPWV values of > 10 m/s were classified in the high arterial stiffness group, whereas those with cfPWV values of =10 m/s were assigned to the low arterial stiffness group.
pre-test and then every 3 months for 2 years
Primary Change of the cardio-ankle vascular index (CAVI) for 2 years Compare the CAVI before, during and after intradialytic cycling exercise
CAVI is a novel and accurate method, independent of the effect of blood pressure, and is used as a predictor of arterial stiffness (AS) AS was defined as a CAVI = 9
pre-test and then every 3 months for 2 years
Primary Change of the brachial-ankle pulse wave velocity (baPWV) for 2 years Compare the baPWV before, during and after intradialytic cycling exercise
baPWV is one measure arterial stiffness using brachial to ankle arterial wave analyses and has been used to assess peripheral arterial stiffness (PAS)
baPWV value >14.0 m/s on either side was considered high PAS.
pre-test and then every 3 months for 2 years
Primary Change of the aortic augmentation index(AI) measurements for 2 years Compare the AI before, during and after intradialytic cycling exercise
AI of central blood pressure have been widely used as clinical indices of arterial stiffness AI is an indirect measure of central arterial stiffness, but mainly a direct measure of central wave reflection
pre-test and then every 3 months for 2 years
Primary Change of the brachial flow-mediated vasodilatation (bFMD) for 2 years Compare the bFMD before, during and after intradialytic cycling exercise
Endothelial function is often quantified by FMD, which represents the endothelium-dependent relaxation of a conduit artery-typically the brachial artery - due to an increased blood flow.
pre-test and then every 3 months for 2 years
Primary Change of the digital thermal monitoring (DTM) for 2 years Compare the DTM before, during and after intradialytic cycling exercise
DTM is a simple noninvasive method to measure endothelial function and vascular reactivity that is correlated with atherosclerosis risk factors and coronary artery disease
Vascular reactivity index (VRI) < 1.0: the poor vascular reactivity, 1.0 = VRI < 2.0: the intermediate vascular reactivity, and VRI = 2.0: the good vascular reactivity.
pre-test and then every 3 months for 2 years
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