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Resistance Training and Diet in Patients With Chronic Renal Failure

This study has been completed.
Information provided by:
VA Office of Research and Development Identifier:
First received: July 3, 2001
Last updated: January 20, 2009
Last verified: December 2004
This study will examine the effects of long-term adherence to a low protein diet (LPD) of 0.6 g/kg-1/d-1 with and without progressive resistance exercise training in patients with impaired renal function on body composition, renal function (glomerular filtration rate), nitrogen balance, muscle strength and size, and functional capacity. The hypothesis is that adherence to a LPD will result in a reduction in skeletal muscle mass and reduced strength and functional capacity while those patients who adhere to the LPD and exercise will demonstrate a similar preservation of renal function but will have greater fat free mass, muscle mass and strength. The intervention trial will last 18 months in which patients with moderate renal failure will be randomly assigned to one of 4 interventions: standard care, standard care + exercise, LPD, and LPD with exercise. In this way the independent and combined effects of diet and exercise on the progression of renal disease and body composition will be monitored. This study will have important implications for the treatment of patients with chronic renal failure. New strategies of combining exercise with recommendations of a low protein diet may slow the progression of renal disease and improve strength and functional capacity in these at-risk patients.

Condition Intervention
Kidney Failure, Chronic Behavioral: low protein diet Behavioral: resistance training Behavioral: combination of diet control and exercise

Study Type: Interventional
Study Design: Allocation: Randomized
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: Resistance Training and Diet in Patients With Chronic Renal Failure

Resource links provided by NLM:

Further study details as provided by VA Office of Research and Development:

Study Start Date: October 2000
Estimated Study Completion Date: December 2005
Detailed Description:
Management of dietary protein intake of the CRF patient represents a critical balance between providing adequate protein to meet nutritional requirements, and limiting protein intake in the hope of slowing or abating the progression of CRF. A number of studies have demonstrated that reduced dietary protein intake can slow the progression of chronic renal failure. Finding effective ways to increase nitrogen retention and decrease urinary nitrogen excretion may help CRF patients maintain a more positive nitrogen balance and lessen the nitrogen load on the kidneys for a given dietary protein intake. Our laboratory has demonstrated that in older men and women, the consequence of adherence to a low protein diet is an accommodation that results in decreased muscle mass, strength,and compromised immune function. We have also demonstrated that when healthy, free living older men and women consume a weight maintenance diet providing the RDA for protein of 0.8 g/kg-1/day-1 for 15 weeks they lose skeletal muscle mass. These data clearly indicate that elderly people have an increased need for dietary protein (compared to young people). Data has also demonstrated that progressive resistance exercise improves nitrogen balance in older healthy individuals as well as in patients with mild to moderate chronic renal failure.

Ages Eligible for Study:   50 Years to 89 Years   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
  • Men and women 50-89 years with chronic renal failure (defined as creatinine clearance of 25-65).
  • Volunteers must be able to fulfill the requirements associated with this protocol.
  • Volunteers may be hypertensive and/or diabetic.
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Please refer to this study by its identifier: NCT00018317

United States, Arkansas
Central Arkansas Veterans Healthcare System
Little Rock, Arkansas, United States, 72205
Sponsors and Collaborators
VA Office of Research and Development
OverallOfficial: Dinesh Chatoth, M.D.
  More Information Identifier: NCT00018317     History of Changes
Other Study ID Numbers: AGCG-005-99F
Study First Received: July 3, 2001
Last Updated: January 20, 2009

Keywords provided by VA Office of Research and Development:

Additional relevant MeSH terms:
Renal Insufficiency
Kidney Failure, Chronic
Kidney Diseases
Urologic Diseases
Renal Insufficiency, Chronic processed this record on September 19, 2017