Exercise Can Help Fight Heart Failure

MONDAY, May 7 (HealthDay News) — Exercise can slow muscle
wasting, boost strength and reduce inflammation caused by aging and heart
failure, a new study confirms.

In heart failure — also called congestive heart failure — the heart
doesn’t pump blood well enough to meet the body’s needs. About 5.7 million
adult Americans have heart failure, according to the American Heart
Association.

One expert not connected with the study said interventions that work
are needed.

“Heart failure, which is a debilitating, chronic condition often
associated with multiple hospitalizations, and is a financial burden on
our health care system, may improve with exercise,” said Dr. Suzanne
Steinbaum, preventive cardiologist at Lenox Hill Hospital in New York
City. “Recommendations to treat heart failure should clearly include an
exercise component, as the benefits are those that can help improve the
clinical status in these otherwise sick patients,” she said.

The new study included 60 heart failure patients and 60 healthy people
who did either four weeks of supervised aerobic training or no exercise.
Half of the participants were 55 and younger and half were 65 and
older.

The exercise group undertook four 20-minute training sessions per day,
five days a week. They also did one 60-minute group exercise session that
focused on muscle endurance and oxygen uptake (a measure of aerobic
endurance).

Among heart failure patients who exercised, those aged 55 and younger
increased their peak oxygen uptake by 25 percent and those aged 65 and
older increased it by 27 percent.

According to Steinbaum, those finding demonstrate that “these
beneficial effects [of exercise] are not age-dependent.”

The study also found that the exercise program slowed muscle wasting in
the heart failure patients and improved their leg muscle strength and
overall exercise capacity, regardless of age.

The findings suggest that exercise benefits even elderly heart failure
patients, the researchers said.

The study appears May 7 in the journal Circulation.

“Many physicians — and insurance companies — still believe that
cardiac rehabilitation does not really help in old age. This study clearly
falsifies this belief,” lead co-author Dr. Stephan Gielen, deputy director
of cardiology at the University Hospital, Martin Luther University of
Halle, Germany, said in a journal news release.

“Exercise switches off the muscle-wasting pathways and switches on
pathways involved in muscle growth, counteracting muscle loss and exercise
intolerance in heart failure patients,” he explained.

More information

The U.S. National Heart, Lung, and Blood Institute has more about heart failure.

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