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

Washington University School of Medicine20 enrolled

Overview

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

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

Allocation

RANDOMIZED

Purpose

TREATMENT

Masking

SINGLE

Enrollment

Conditions

Obesity

Interventions

weight loss and exerciseBEHAVIORAL

10% weight loss through diet and exercise plus multicomponent exercise training three times a week

weight lossBEHAVIORAL

10 percent weight loss through diet and behavioral modification

Eligibility

Sex: ALLMin age: 65 YearsMax age: 85 YearsHealthy volunteers:

Medical Language ↔ Plain English

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

Locations (1)

Washington University School of Medicine

St Louis, Missouri, United States

Outcomes

Primary Outcomes

Intrahepatic fat Intramyocellular fat

Time frame: 6-month

Secondary Outcomes

Insulin sensitivity Physical Function

Time frame: 6-month

Data from ClinicalTrials.gov

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