Sitting for long periods, five hours or more, increases heart failure risk in men, even for those who exercise regularly, according to new research published in the American Heart Association Journal Circulation: Heart Failure.
Preventing heart failure, researchers found, requires a two-part behavioral approach: high levels of physical activity, like cross-country skiing and swimming, plus low levels of sedentary time, literally, sitting in the chair for long periods.
The study is the first to examine the link between heart failure risk and sedentary time, said Deborah Rohm Young, Ph.D., lead researcher and a senior scientist at Kaiser Permanente in Pasadena, Calif.
"Be more active and sit less. That's the message here," said Kelly Rumpf, Health Educator with the Dickinson-Iron District Health Department.
Highlights of the study include:
- Increased sedentary time may be linked to greater heart failure risk.
- Being very physically active (cross-country skiing, running, swimming, etc.) and less sedentary reduces heart failure risk.
- High sedentary levels, five hours or more of sitting, increase heart failure risk regardless of physical activity levels, whether moderate (walking) or vigorous (running) for example.
Researchers followed a racially diverse group of 84,170 men ages 45 to 69 without heart failure. Exercise levels were calculated in METs, or metabolic equivalent of task, a measure of the body's energy use. Sedentary levels were measured in hours.
After an average of nearly eight years of follow-up, researchers found:
- Outside of work, men who spent five or more hours a day sitting were 34 percent more likely to develop heart failure than men who spent no more than two hours a day sitting, regardless of how much they exercised.
- Heart failure risk more than doubled in men who sat for at least five hours a day and got little exercise compared to men who were very physically active and sat for two hours or less a day.
Study limitations included:
- Since no women were studied the results may not apply to them.
- Results were self-reported, which could mean physical activity was over reported.
- Results were based only on time outside of work and can't be applied to overall sedentary activity.
- Participants were members of comprehensive health plans, so results may not apply to men lacking health insurance.
The study supports the American Heart Association recommendation that people get at least 150 minutes a week of moderate-intensity aerobic activity (brisk walking, playing sports, biking, etc.) to reduce their risk for heart failure and other cardiovascular diseases.
Heart attack warning signs include:
- Most heart attacks involve discomfort in the center of the chest that lasts more than a few minutes, or that goes away and comes back. It can feel like uncomfortable pressure, squeezing, fullness or pain.
- Symptoms can include pain or discomfort in one or both arms, the back, neck, jaw or stomach.
- Shortness of breath with or without chest discomfort.
- Chest discomfort.
- Discomfort in other areas of the upper body.
Stroke warning signs
Spot a stroke F.A.S.T.:
- Face Drooping: Does one side of the face droop or is it numb? Ask the person to smile.
- Arm Weakness: Is one arm weak or numb? Ask the person to raise both arms. Does one arm drift downward?
- Speech Difficulty: Is speech slurred, are they unable to speak, or are they hard to understand? Ask the person to repeat a simple sentence, like "the sky is blue." Is the sentence repeated correctly?
- Time to call 9-1-1. If the person shows any of these symptoms, even if the symptoms go away, call 9-1-1 and get them to the hospital immediately.
The Dickinson-Iron District Health Department offers a heart healthy screening program to help area employees.
Call Rumpf at 779-7234 to learn more about this program.