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Research suggests that patients with heart disease should get up and move every 20 minutes to avoid an early grave.
Canadian experts say that being active about three times an hour for seven minutes helps to burn 770 calories a day.
Scientists think it's the amount of calories that a heart patient needs to burn to reduce his risk of premature death.
Heart patients should move every 21 minutes to live long, according to a study (stock)
Researchers from the University of Alberta analyzed 132 patients with coronary artery disease.
Participants, averaging 63 years old, wore an armband monitoring their activity level for 22 hours a day for five days.
This allowed to evaluate the time spent to be active and the duration of their breaks between two exercise sessions.
The researchers then calculated how often a patient with heart disease should move to burn 770 calories a day.
"There is plenty of evidence now that sitting for long periods of time is bad for your health," said Dr. Ailar Ramadi, author of the study.
"Our study shows that cardiac patients must stop sedentary every 20 minutes with a light physical activity of seven minutes."
He said that would add to 21 minutes of light physical activity and would be & # 39;to spend 770 calories a day, an amount associated with a lower risk of premature death. "
Other experts have warned that the study – presented at the Canadian Congress on Cardiovascular Health (CCC) in Toronto – was too small to draw any definitive conclusions.
"A randomized controlled trial is needed before it becomes a firm recommendation," said Professor Joep Perk of the European Society of Cardiology (ESC).
"Nevertheless, regular physical activity is the key to a healthy life, whether you are cardiac or not."
Michelle Graham, chair of the CSC Science Program Committee, added: & # 39;[This] A new work has very practical implications, not only for patients with cardiovascular disease, but also to improve prevention by changing the way people work in sedentary environments. & # 39;
Coronary artery disease occurs when the major blood vessels that supply the heart with blood, nutrients and oxygen become damaged or diseased.
This is usually due to the buildup of plaque that narrows the arteries and limits blood flow. This is the most common type of heart disease.
Heart disease is the leading cause of death in the United States and the United Kingdom, where it is responsible for one in four deaths.
Exercising, eating well and not smoking all reduce the risk of coronary heart disease.
"Sedentary lifestyles affect more than half of the world's population," said Professor Jeroen Bax, former president of CES.
"The ESC guidelines on cardiovascular disease prevention recommend a minimum of 150 minutes of moderate activity or 75 minutes of vigorous activity per week.
"Any activity is better than nothing and more activity is better than others."
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