HOME >> MEDICINE >> NEWS
Declines in exercise capacity may be due to lack of training, not just age

Older people generally have to work harder than younger people to walk as fast or do other exercise, but some of the difference may be due to reduced exercise efficiency, which can be reversed with training, according to a new study in the Mar. 7, 2006, issue of the Journal of the American College of Cardiology.

"Older subjects are less efficient than younger subjects. This inefficiency can be reversed by aerobic exercise training," said Wayne C. Levy, M.D., F.A.C.C. from the University of Washington in Seattle.

"It is well known that aging is associated with reduced exercise capacity. What is less appreciated is that older subjects have an additional impairment in exercise capacity due to exercise inefficiency. For example, the older subjects used about 20 percent more oxygen to walk at 3.5 miles an hour than the younger subjects. Thus, the older subject walking at 3 miles per hour and the younger subject walking at 3.5 miles per hour used the same amount of oxygen. With training, this disparity with aging was abolished," he added.

The researchers from the University of Washington and the Veterans Affairs Puget Sound Health Care System in Seattle, including lead author J. Susie Woo, M.D., compared participants in their 20s to early 30s (15 women and 12 men) to those in their mid-60s to late 70s (16 women and 18 men).

Before training, the younger participants had a much higher exercise capacity, as shown by a peak oxygen consumption (delivery of oxygen to exercising muscle) that was 42 percent higher. Younger participants also didn't have to work as hard and were 8 percent more efficient than the older participants.

Then all the participants were entered into a supervised aerobic exercise program. Three times per week they walked or jogged, bicycled, and stretched, doing each for 30 minutes during a 90-minute workout session.

After three to six months, the older subjects on average boosted their peak work output by 29
'"/>

Contact: Amy Murphy
amurphy@acc.org
301-581-3476
American College of Cardiology
7-Mar-2006


Page: 1 2 3 4

Related medicine news :

1. Traditional Chinese exercises may increase efficacy of flu vaccine
2. Even low levels of weekly exercise drive down blood pressure
3. Some women benefit more from exercise when emphasis is on health, not appearance
4. Strengthening exercises may slow progression of ALS
5. Research shows aerobic exercise helps maintain muscle in elderly
6. Study finds role of mid-brain in integrating heart and respiratory response to exercise
7. NISTs stretching exercises shed new light on nanotubes
8. Task force recommends greater use of exercise testing in chronic disease
9. USC-led study suggests exercise reduces risk of developing invasive breast cancer
10. What prevents doctors from counseling their patients to lose weight, exercise and quit smoking?
11. Does endurance exercise promote life-threatening changes in athletes hearts?

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:4/30/2016)... ... ... Orlando-based Maximized Living has selected Dr. Nick Wilson of Indianapolis to support ... care of Maximized Living doctors at the London Olympics in 2012, U.S. wrestlers won ... the largest contingent of elite chiropractors to Rio to support and care for members ...
(Date:4/29/2016)... Hollywood, Fl (PRWEB) , ... April 29, 2016 ... ... was recently notified by the Accreditation Council for Graduate Medical Education (ACGME) that ... , This is the first accreditation of three residency programs that Memorial ...
(Date:4/29/2016)... ... April 29, 2016 , ... Dr. Bernie Siegel, ... "LOVE, MEDICINE and MIRACLES") addresses touchy topics related to Death live on ... Dr. Bernie Siegel, author of a plethora of essential books-to-read for physicians ...
(Date:4/29/2016)... ... April 29, 2016 , ... Spine Team Texas, a comprehensive spine physician group ... of their physicians has been invited to be a featured speaker at the Texas ... conference on April 30, 2016. , Dr. R. Scott McPherson, a physical medicine ...
(Date:4/29/2016)... ... ... the deadliest type of skin cancer. Although only about 1 percent of skin cancer cases ... 10,000 people are expected to die of melanoma this year. The risk increases with age, ... most commonly diagnosed cancers in young women. A recent breakthrough in genetic studies may give ...
Breaking Medicine News(10 mins):
(Date:4/27/2016)... April 27, 2016 Oasmia ... developer of a new generation of drugs within ... survival results for Paclical/Apealea in the Phase III ... with epithelial ovarian cancer. These preliminary results showed ... combination with carboplatin versus Taxol in combination with ...
(Date:4/27/2016)... Switzerland , April 27, 2016 ... AG announced the launch of a Phase 2 clinical ... residual hearing in patients undergoing cochlear implantation (CI) surgery. ... recruiting patients in Germany and ... into the middle ear at the time of surgery. ...
(Date:4/26/2016)... 26, 2016 US demand for infection ... 4.9 percent annually to $27.6 billion in 2020.  ... to decrease rates of healthcare-associated infections (HAIs) will ... and services.  Although declining, the overall rate of ... levels set by the CDC.  Recent statistics indicate ...
Breaking Medicine Technology:
Cached News: