Navigation Links
Walking Is Good for Blocked Leg Arteries
Date:1/13/2009

Study shows value of exercise in treating peripheral arterial disease

TUESDAY, Jan. 13 (HealthDay News) -- Anyone looking for proof that a planned program of walking is good for people with the leg blood-vessel blockage called peripheral arterial disease (PAD) should check the results of a new U.S. government-funded study.

The study of 156 people with PAD -- many of whom didn't have the pain that is the classic symptom of artery blockage -- showed that regular six-minute walks on a treadmill improved their endurance and quality of life.

While walking is a standard recommendation for people with PAD, the study was different in two ways, said study lead author Dr. Mary M. McDermott, an associate professor of medicine at Northwestern University's Feinberg School of Medicine in Chicago.

"All prior studies have focused on patients with intermittent claudicating -- the symptom of PAD," McDermott said. "Some of the patients in this study were asymptomatic. Also, we included testing of leg strength. This is the largest trial to do so."

The findings were published in the Jan. 14 issue of the Journal of the American Medical Association.

Over the six months of the study, the participants who did their regular six-minute treadmill walks increased their walking distance by about 69 feet, while those who did not walk regularly saw a decrease of 49 feet.

There are several reasons for the increase in performance, said Ronald Terjung, professor of physiology at the University of Missouri, who has done a series of animal studies that looked at the basic science involved with PAD.

"There is the potential for greater oxygen extraction from the blood under maximum exercise conditions," Terjung said. "The muscles can make better use of blood flow and the oxygen release that comes from it."

The animal studies also showed that such exercise leads to improvement in "collateral circulation" -- growth in the number of blood vessels supplying the legs, Terjung said. "There was clearly a dramatic increase in collateral circulation in animal studies," he said.

Improved collateral circulation has not been seen in many human PAD studies of walking, he acknowledged, "but it can be very difficult to measure this kind of blood flow in patients."

Whatever the reason for improvement seen in the new study, McDermott said, "clinicians should urge all PAD patients, whether or not they have symptoms, to engage in a regular, supervised exercise program."

A recommended regimen is a 40-minute walk three times a week for at least six months, McDermott said. The walking can be done on a treadmill or a sidewalk, but it is best done with a trainer standing by, she said.

"You need a trainer, because if you start to get symptoms, you can stop and then start again until you have done the 40 minutes," she said.

Identifying PAD can be difficult for the average person. One recent study found that three-quarters of adult Americans know little or nothing about the condition, which is estimated to affect one of every 16 Americans 40 or older.

Persistent leg pain is an indication that help is needed, McDermott said. In the absence of that symptom, physicians can test for PAD by measuring the difference in blood pressure between an ankle and an arm, she said.

More information

Learn more about PAD from the American Heart Association.



SOURCES: Mary M. McDermott, M.D., associate professor of medicine, Northwestern University Feinberg School of Medicine, Chicago; Ronald Terjung, Ph.D., professor of physiology, University of Missouri, Columbia; Jan. 14, 2009, Journal of the American Medical Association


'/>"/>
Copyright©2009 ScoutNews,LLC.
All rights reserved

Related medicine news :

1. Diabetics with previous foot ulcers may be able to participate in walking program
2. Perception of health and balance has direct impact on walking activity, new study says
3. Brain Boosting Drugs vs. Walking: Treadmill Desk Manufacturer Promotes Common Sense
4. Passport Health, American Lung Association; Walking Together to Prevent the Flu
5. Walking forum report shows need to expand physical activity in schools
6. Walking Golf Course Affects Swing, Performance
7. New report shows locomotor training restores walking function in child with spinal cord injury
8. Sen. Kennedy Up and Walking After Brain Tumor Surgery
9. Treatment improves walking ability of Parkinsons patients
10. Genetic mutation linked to walking on all 4s
11. Brisk Walking Lowers Blood Pressure, Increases Fitness in Obese
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:6/25/2016)... Beach, CA (PRWEB) , ... June 25, 2016 , ... ... UCLA with Magna Cum Laude and his M.D from the David Geffen School of ... Diego and returned to Los Angeles to complete his fellowship in hematology/oncology at the ...
(Date:6/25/2016)... ... June 25, 2016 , ... On Friday, June 10, Van ... Wellness at Work award to iHire in recognition of their exemplary accomplishments in worksite ... 7th annual Maryland Workplace Health & Wellness Symposium at the BWI Marriott in Linthicum ...
(Date:6/24/2016)... Angeles, CA (PRWEB) , ... June 24, 2016 , ... ... surgery procedures that most people are unfamiliar with. The article goes on to state ... procedures, but also many of these less common operations such as calf and cheek ...
(Date:6/24/2016)... ... , ... June 19, 2016 is World Sickle Cell Observance Day. In an ... of holistic treatments, Serenity Recovery Center of Marne, Michigan, has issued a ... Cell Disease (SCD) is a disorder of the red blood cells, which can cause ...
(Date:6/24/2016)... Texas (PRWEB) , ... June 24, 2016 , ... ... International Conference and Scientific Sessions in Dallas that it will receive two significant ... of the grants came as PHA marked its 25th anniversary by recognizing patients, ...
Breaking Medicine News(10 mins):
(Date:6/26/2016)...  VMS Rehab Systems, Inc. ( www.vmsrehabsystemsinc.com ) reported ... required to build a strong and stable market for ... on the OTC Markets-pink current trading platform. ... are seeing an anomaly in market trading activities that ... the Company, but shareholders and market players as well. ...
(Date:6/24/2016)... SAN FRANCISCO, Calif. , June 24, 2016 ... GBT ), a biopharmaceutical company developing novel therapeutics ... significant unmet needs, today announced the closing of ... shares of common stock, at the public offering ... shares in the offering were offered by GBT. ...
(Date:6/24/2016)... ALEXANDRIA, Va. , June 24, 2016 ... a set of recommendations that would allow ... information (HCEI) with entities that make formulary and coverage ... determine the "value" of new medicines. The ... that does not appear on the drug label, a ...
Breaking Medicine Technology: