Exercise for Elderly Peripheral Revascularized Patients

Status Completed

Clinical Trial Summary

The purpose of this study is (1) to determine whether a 3-month exercise rehabilitation program will improve claudication distances, free-living daily physical activity, and health-related quality of life of older, revascularized patients with peripheral arterial disease, and (2) to determine whether the primary mechanisms by which exercise rehabilitation affects the above functional outcomes are through alterations in walking efficiency, peripheral circulation, and cardiopulmonary function.

Clinical Trial Description

Peripheral arterial disease (PAD) patients with critical limb-threatening ischemia have improved peripheral circulation following infrainguinal revascularization. Despite this hemodynamic benefit, little change in functional status occurs, and many patients have residual ambulatory dysfunction. The lack of functional improvement in revascularized patients may be due to extreme physical deconditioning secondary to their pre-existing critical limb-threatening ischemia. Therefore, we hypothesize that a program of aerobic exercise training is necessary to optimize ambulation, free-living daily physical activity, and health-related quality of life through the mechanisms of improved walking economy, peripheral circulation, and cardiopulmonary function.

This is a prospective, randomized controlled clinical trial comparing an exercise group undergoing a program of graded treadmill walking, and a non-exercise control group. Eighty PAD patients will be randomized into either the exercise group (N = 40) or the non-exercise control group (N = 40) following successful lower extremity arterial bypass or angioplasty. The 3-month exercise program will consist of graded treadmill walking 3 times per week with progressive increments in exercise duration from 15 to 40 minutes, and progressive increments in exercise intensity from 50 to 80% of exercise capacity. ;

Study Design

Allocation: Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Parallel Assignment, Masking: Single Blind, Primary Purpose: Treatment

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT00667290
Study type	Interventional
Source	National Institute on Aging (NIA)
Contact
Status	Completed
Phase	N/A
Start date	July 2000
Completion date	June 2007

View Details

See also
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Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.