
The term “heart failure” can be very unnerving, but it doesn’t mean the heart has “failed” or stopped working. It does mean that the heart isn’t pumping as well as it should. In some cases, the heart can’t fill with enough blood; in other cases, the heart can’t send blood to the rest of the body with enough force. Some people have both problems. Currently there is no cure for heart failure, and patients are traditionally urged to curb physical activity and focus more on resting the heart. But that recommendation may change in light of new evidence that suggests physical activity is not only beneficial, but may increase survival rates in some patients.
Patients were randomly assigned to either their usual-care regimen, which included a passing reference to exercise but encouragement to remain active, or standard treatment combined with regular sessions of aerobic-style exercise, such as using a treadmill or stationary bike 15 to 35 minutes three times a week, working up to 40 minutes 5 times a week. The participants were followed for two and a half years on average.
“We feel these are important findings for patients and physicians alike,” said Dr. Whellan. “It takes a lot of time and commitment to definitively answer a question that many of us had asked for years: Can exercise provide clinically significant benefit for patients with heart failure? Now we know that the answer is ‘yes.’ We also know that it is safe: There was no significant difference between the two study groups in the risk of heart attacks, arrhythmias, falls or fractures during the study period.”
“Many patients and health care providers have continued to be concerned about the safety of aerobic exercise for heart failure,” said NHLBI Director Dr. Elizabeth G. Nabel. “With the results of this robust clinical trial, we can now reassure heart failure patients that, with appropriate medical supervision, regular aerobic exercise is not only safe but it can also improve their lives in really meaningful ways.”