- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT01399489
Aerobic Training and Arterial Stiffness in Chronic Kidney Disease (CKD) Patients
January 22, 2014 updated by: Samuel A. Headley, Springfield College
The Effect of Short-term Aerobic Training on Arterial Stiffness and Blood in Chronic Kidney Disease (CKD) Patients
The current study is designed to examine the impact of 16 weeks of moderate intensity aerobic training on arterial stiffness and blood pressure in stage 3 chronic kidney disease (CKD) patients.
The investigators hypothesize that short term aerobic training will improve the stiffness of arteries in CKD patients.
Study Overview
Status
Completed
Conditions
Intervention / Treatment
Detailed Description
The focus of the current research group is to examine the impact of lifestyle interventions on the development of cardiovascular disease (CV) in chronic kidney disease (CKD) patients.
The study being proposed is to determine the effect of short-term aerobic training on arterial stiffness and blood pressure (BP) in CKD patients.
Arterial stiffness has been chosen as a dependent variable since it is one of the most important predictors of CV complications while hypertension is known to play a critical role both in the development of CV and in the progression of CKD (6, 41).
The specific aims of the study are: (a) to determine the effect of short-term aerobic training on arterial stiffness in CKD patients, (b) to determine the effect of short-term aerobic training on resting and ambulatory blood pressures (ABP) in CKD patients and (c) to determine the effect of short-term aerobic training on the acute post-exercise blood pressure response in CKD patients since acute responses may be related to changes following a period of chronic training.
Fifty, 35-70 yr old, stage 3 CKD patients, with either diabetes or hypertension as the primary cause of their CKD will be recruited for this study.
Subjects will be randomly assigned to either the exercise group (ExG = 25) or to the control group (CG = 25).
At the start of the study each subject will attend 4 research sessions.
During the first session, resting and 24 hr ABP readings will be recorded.
In the second session, anthropometric measures, peak oxygen uptake (VO2peak), and ABP values will be measured.
Sessions 3 & 4 will be performed in random order.
During these sessions, pulse wave velocity (PWV), augmentation index (AIx) and BP will be measured at baseline after a rest period.
Subjects will then either walk for 30 min at 50-60% of VO2 peak, or sit quietly for an equal period of time.
BP will be monitored for 60 min in recovery following exercise and ABP will be taken during the subsequent 24 hrs.
ExG will perform supervised aerobic training for 45-50 min, 3 times per week, at a moderate intensity, for 16 weeks.
CG will continue their activities of daily living but will not be given an exercise program.
All subjects will be retested at week 8 for BP, ABP, and arterial stiffness and at week 16 for all variables.
After 16 weeks of the study both groups will be retested using identical procedures as at baseline.
A series of 2 X 2 analyses of covariance with age, baseline PWV, AIx and BP as the covariates, will be used to determine the effect of the 16 week intervention period on the primary outcome variables.
A 2 X 7 X 2, mixed factorial repeated measures ANOVA will be used to analyze the post-exercise data while a Pearson Moment Correlation Coefficient will be computed to examine the relationship between post-exercise acute responses and BP changes following chronic training.
An alpha level of 0.05 will be used for all analyses.
Study Type
Interventional
Enrollment (Actual)
51
Phase
- Not Applicable
Contacts and Locations
This section provides the contact details for those conducting the study, and information on where this study is being conducted.
Study Locations
-
-
Massachusetts
-
Springfield, Massachusetts, United States, 01109
- Athletic Training and Exercise Science Building
-
-
Participation Criteria
Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.
Eligibility Criteria
Ages Eligible for Study
35 years to 70 years (Adult, Older Adult)
Accepts Healthy Volunteers
No
Genders Eligible for Study
All
Description
Inclusion Criteria:
- Stage 3 Chronic Kidney Disease (CKD)
- Primary diagnosis hypertension or diabetes
Exclusion Criteria:
- Smokers
- Individuals < 35 or > 70 years of age
- Any contraindicators to exercise training as defined by the ACSM guidelines (GETP8)
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?
Design Details
- Primary Purpose: Prevention
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: Exercise training
Individuals randomized to this arm get 48 sessions of personal training in a state of the art fitness facility
|
Participants receive 16 weeks of moderate intensity aerobic training under the supervision of personal trainers.
Each session lasts from 15 to 55 minutes depending upon patient tolerance
Other Names:
|
No Intervention: Control
Individuals in the control arm are expected to continue to live normally, following their doctor's advice but not engage in any formal exercise training.
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Change from Baseline in Arterial stiffness (pulse wave velocity)
Time Frame: Change from Baseline in PWV at 16 weeks
|
Arterial stiffness is measured via pulse wave velocity.
In addition augmentation index is also being assessed.
Blood pressure is being measured under resting conditions and via 24 hr ambulatory devices.
|
Change from Baseline in PWV at 16 weeks
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Change in Resting blood pressure from Baseline
Time Frame: Baseline prior to acute exercise vs post acute exercise
|
Resting blood pressure is measured at baseline before an acute bout of exercise and for 1 hour in the laboratory after 40 min of exercise.
This is repeated after 16 weeks of training or after the 16 control period
|
Baseline prior to acute exercise vs post acute exercise
|
Change in Resting blood pressure after 16 weeks of training
Time Frame: Change in resting blood pressure from baseline at 16 weeks of training
|
Resting blood pressure is measured at baseline before an acute bout of exercise and for 1 hour in the laboratory after 40 min of exercise.
This is repeated after 16 weeks of training or after the 16 control period
|
Change in resting blood pressure from baseline at 16 weeks of training
|
Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Sponsor
Collaborators
Investigators
- Principal Investigator: Samuel A Headley, Ph.D, Sprtingfield College
Study record dates
These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.
Study Major Dates
Study Start
September 1, 2009
Primary Completion (Actual)
December 1, 2012
Study Completion (Actual)
December 1, 2012
Study Registration Dates
First Submitted
January 31, 2011
First Submitted That Met QC Criteria
July 20, 2011
First Posted (Estimate)
July 21, 2011
Study Record Updates
Last Update Posted (Estimate)
January 23, 2014
Last Update Submitted That Met QC Criteria
January 22, 2014
Last Verified
January 1, 2014
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- 1R15HL096097-01 (U.S. NIH Grant/Contract)
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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