Effects of an Exercise Program in Patients With Hypertensive Chronic Kidney Disease

March 1, 2012 updated by: FRANKLIN CORREA BARCELLOS, Federal University of Pelotas

Effects of an Exercise Program in Patients With Hypertensive Chronic Kidney Disease: a Randomized Clinical Trial

Introduction: Chronic kidney disease (CKD) is now an important public health issue. While 0.1% of the population is on dialysis, approximately 4.5% of subjects have renal dysfunction (glomerular filtration rate <60 ml/min/1.73 m2). These patients have a high mortality of cardiovascular disease (CVD) with low quality of life and survival, despite high expenditure on their treatment. Hypertension (SAH) is both a cause and a complication of CKD. In addition, CKD and hypertension are risk factors for CVD. The nephropathy that are not on dialysis are less studied than those on dialysis. Strategies are needed to maintain renal function in these patients and mitigate the risk factors for CVD. A sedentary lifestyle can be an important determinant of morbidity of mortality. This study aims to determine the effect of exercise in patients with CKD not yet on dialysis.

Methodology: A randomized clinical trial in hypertensive patients with CRF. After recruitment of participants and completed baseline surveys, those eligible for inclusion and consented to participate in the study will be randomly assigned. We use the technique of randomization in blocks of fixed size of six persons.

Variables to be collected: demographic, socioeconomic, behavioral, anthropometric, blood pressure, laboratory tests (anemia, the lipid profile, blood glucose, inflammatory markers and number of peripheral endothelial progenitor cells) and quality of life. These patients will be re-interviewed in the middle period of the study (10 weeks) at the end of the intervention (20 weeks) and 10 weeks after the end of the intervention. The intervention group will participate in two weekly sessions of exercise.

Therefore, facing the epidemic of CKD, this study intends to fill the data gaps about the impact of physical activity in patients with CKD on dialysis.

Study Overview

Detailed Description

Eligibility:

Individuals hypertensives diagnosed with GFR between 15 and 59 ml/min./1.73m2

Will be excluded from the study following patients:

  • Diabetes mellitus;
  • Severe physical disability
  • Acute myocardial infarction in the last six months;
  • Uncontrolled hypertension (systolic pressure> 180 mmHg and / or diastolic pressure> 110 mmHg);
  • Angina at rest (unstable) or triggered by exercise;
  • Congestive heart failure (> class II New York Heart Association; table X);
  • Cardiac arrhythmias (> Lown class II,> 30 premature beats per minute);
  • Subjects with prior renal transplant or dialysis.

Study Type

Interventional

Enrollment (Anticipated)

200

Phase

  • Phase 4

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

    • RS
      • Pelotas, RS, Brazil, 96020220
        • University Federal of Pelotas

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

18 years and older (ADULT, OLDER_ADULT)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Individuals who have hypertension diagnosed with Glomerular Filtration Rate from 15 to 59 ml/min./1.73m2 characterized, therefore, in stages 3 or 4 chronic kidney disease enrolled in Basic Health Units (BHU) in the urban area of Pelotas , RS.

Exclusion Criteria:

  • Ia) Subjects diagnosed with diabetes mellitus; b) Patients with severe physical disability (lower limb amputation without prosthesis, orthopedic diseases that worsen with exercise); c) Individuals who have had acute myocardial infarction in the last six months; d) Subjects with hypertension at rest uncontrolled (systolic> 180 mmHg and / or diastolic pressure> 110 mmHg); e) Patients with angina at rest (unstable) or triggered by exercise; f) Individuals with congestive heart failure (> class II New York Heart Association; Table X); g) Patients with cardiac arrhythmias (> Lown class II,> 30 premature beats per minute); h) Individuals with peripheral vascular disease or moderate to severe; i) Subjects with prior renal transplant or dialysis.

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
  • Masking: NONE

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
EXPERIMENTAL: Lifestyle interventions
After recruitment of the participants and consented to participate those deemed eligible for inclusion completed baseline surveys will be randomly assigned to an intervention group and another control group that will receive the usual care
The intervention will consist of physical exercise sessions for approximately 60 minutes and two weekly sessions. The classes will consist of an initial part to exercises heating joint flexibility and lasting 10 minutes, a major part consists of aerobic exercise, lasting 20-30 minutes, and a piece of muscular endurance with exercises upper and lower limbs and abdomen, lasting 10-20 minutes. The intensity will be controlled through the Subjective Perception Scale Borg
Other Names:
  • aerobic exercise
  • exercício físico
PLACEBO_COMPARATOR: lifestyle interventions
After recruitment of the participants and consented to participate those deemed eligible for inclusion completed baseline surveys will be randomly assigned to an intervention group and another control group that will receive the usual care
The intervention will consist of physical exercise sessions for approximately 60 minutes and two weekly sessions. The classes will consist of an initial part to exercises heating joint flexibility and lasting 10 minutes, a major part consists of aerobic exercise, lasting 20-30 minutes, and a piece of muscular endurance with exercises upper and lower limbs and abdomen, lasting 10-20 minutes. The intensity will be controlled through the Subjective Perception Scale Borg
Other Names:
  • aerobic exercise
  • exercício físico

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Progression of renal disease
Time Frame: 30 th weeks
randomized clinicals trials efficacy exercise in patients with chronic renal disease
30 th weeks

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
quality of life
Time Frame: 30th weeks
assessing quality of life in patients with chronic kidney disease receiving conservative treatment: a randomized clinical trial
30th weeks
efficacy of physical exercise on blood pressure
Time Frame: 30 weeks
same, patients pré-dialysis, randomized clinical trial
30 weeks
Effects of exercise on endothelial progenitor cells in pre-dialysis patients
Time Frame: 30 weeks
same, endothelial progenitor cells in whole blood using flow cytometry (number)in pre-dialysis patients: randomized clinical trial
30 weeks
Ankle Brachial Pressure Index
Time Frame: 30 weeks
same, association of Chronic Kidney Disease With the Spectrum of Ankle Brachial Index in patients pré-dialysis, randomized clinical trial
30 weeks
blood lipids
Time Frame: 30 weeks
same, in patients pré-dialysis, randomized clinical tria
30 weeks

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Investigators

  • Study Director: Pedro Hallal, phd, university federal de pelotas

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

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, 2011

Primary Completion (ANTICIPATED)

November 1, 2012

Study Completion (ANTICIPATED)

December 1, 2012

Study Registration Dates

First Submitted

June 30, 2010

First Submitted That Met QC Criteria

June 30, 2010

First Posted (ESTIMATE)

July 1, 2010

Study Record Updates

Last Update Posted (ESTIMATE)

March 5, 2012

Last Update Submitted That Met QC Criteria

March 1, 2012

Last Verified

March 1, 2012

More Information

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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