Effect of Weight Loss and Exercise on Liver and Muscle Fat in Obese Elderly

October 23, 2008 updated by: Washington University School of Medicine

Effect of Weight Loss and Exercise on Intrahepatic and Intramyocellular Fat in Obese Older Adults

The purpose of this study is to determine the effect of weight loss and exercise on liver and muscle fat.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

Obesity causes serious medical complications and impairs quality of life. Moreover, both aging and obesity cause metabolic and physical dysfunction. The primary objectives of the proposed research are to evaluate the independent and combined effects of weight loss and exercise on Intrahepatic and Intramyocellular fat in obese elderly men and women. The central hypothesis is that in obese elderly subjects, weight loss will improve metabolic and physical function while the addition of exercise will not only augment improvement in these outcomes, but also attenuate the adverse effects of weight loss on bone and muscle masses. To test this hypothesis, 20 elderly (65-85 years old) obese men and women (body mass index [BMI] > 30 kg/m2) with physical frailty will be randomized to 2 treatment groups: 1)10% weight loss, 2) 10% weight loss plus exercise training.

Study Type

Interventional

Enrollment (Actual)

20

Phase

  • Phase 3

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

  • United States
    • Missouri
      • St. Louis, Missouri, United States, 63108
        • Washington University School of Medicine

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

65 years to 85 years (Older Adult)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Obese (BMI 30 or greater)
  • Elderly (age 65 years or older)

Exclusion Criteria:

  • Major chronic disease or any condition that would interfere with exercise or dietary restriction, in which exercise or dietary restriction are contraindicated, or that would interfere with interpretation of results. Examples include cardiopulmonary disease, unstable disease, severe orthopedic or neuromuscular impairments, dementia, history of malignancy during the past 5 years

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: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Single

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: 1
weight loss
Behavioral: weight loss
10 percent weight loss through diet and behavioral modification
Other Names:
  • lifestyle change
Experimental: 2
Weight loss and exercise
Behavioral: weight loss and exercise
10% weight loss through diet and exercise plus multicomponent exercise training three times a week
Other Names:
  • lifestyle modification

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Intrahepatic fat Intramyocellular fat
Time Frame: 6-month
6-month

Secondary Outcome Measures

Outcome Measure
Time Frame
Insulin sensitivity Physical Function
Time Frame: 6-month
6-month

Collaborators and Investigators

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

Sponsor

Washington University School of Medicine

Investigators

  • Principal Investigator: Dennis T Villareal, MD, Washington University School of Medicine

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.

General Publications

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

November 1, 2006

Primary Completion (Actual)

August 1, 2008

Study Completion (Actual)

August 1, 2008

Study Registration Dates

First Submitted

October 22, 2008

First Submitted That Met QC Criteria

October 23, 2008

First Posted (Estimate)

October 24, 2008

Study Record Updates

Last Update Posted (Estimate)

October 24, 2008

Last Update Submitted That Met QC Criteria

October 23, 2008

Last Verified

October 1, 2008

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • DK 37948A
  • R01AG025501 (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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