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Optimal exercise program length for patients with claudication.

Andrew W Gardner¹, Polly S Montgomery, Donald E Parker

¹General Clinical Research Center, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73117, USA. andrew-gardner@ouhsc.edu

Journal of Vascular Surgery

|March 31, 2012

Summary

This summary is machine-generated.

A 2-month supervised exercise program significantly improves walking time for peripheral artery disease patients. Gains in claudication onset time and peak walking time occur early and are maintained, suggesting shorter programs are effective and efficient.

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Area of Science:

Cardiovascular Rehabilitation
Exercise Physiology
Peripheral Artery Disease Management

Background:

Peripheral artery disease (PAD) with claudication impacts quality of life.
Optimal exercise program duration for PAD claudication is not well-established.

Purpose of the Study:

To determine if an optimal exercise program length exists to improve claudication onset time (COT) and peak walking time (PWT).

Main Methods:

142 PAD patients randomized to supervised exercise (n=106) or usual care (n=36).
Exercise group walked 3x/week to near-maximal claudication pain.
COT and PWT measured bimonthly via treadmill tests.

Main Results:

Supervised exercise significantly improved COT and PWT compared to usual care (P < .001).
Improvements in COT and PWT occurred within the first 2 months and were maintained up to 6 months.
Gains per mile walked were significant only in the first 2 months.

Conclusions:

Exercise-mediated improvements in COT and PWT are rapid, occurring within the first 2 months.
A 2-month program may be clinically preferred due to higher adherence and lower costs.
Shorter exercise programs can be efficient for PAD claudication treatment.