Car, TV Ownership Tied to Higher Risk for Heart Attack

WEDNESDAY, Jan. 11 (HealthDay News) — People who own a car and a
television tend to be at increased risk for heart attack, a new study
finds.

On the other hand, people in developed and developing countries who are
physically active during work and leisure time have a significantly lower
risk of heart attack, the researchers found.

The findings come from an analysis of data from more than 29,000 people
in 52 countries in Africa, Asia, Australia, North and South America,
Europe and the Middle East. The study was published online Jan. 11 in the
European Heart Journal.

“Until now, few studies have looked at the different aspects of
physical activity both at work and during leisure time in relation to the
risk of heart attacks,” first author Dr. Claes Held, an associate
professor at Uppsala Clinical Research Center and the cardiology
department at Uppsala University Hospital in Sweden, said in a journal
news release.

“Much is already known about the association between physical activity
and cardiovascular risk, but what this study adds, among many other
things, is a global perspective. The study shows that mild to moderate
physical activity at work, and any level of physical activity during
leisure time reduces the risk of heart attack, independent of other
traditional risk factors in men and women of all ages, in most regions of
the world and in countries with low, middle or high income levels.
Interestingly, heavy physical labor at work did not protect against heart
attacks,” Held said.

The data analysis revealed that people who did light or moderate
physical activity at work had a 22 percent and 11 percent lower risk of
heart attack, respectively, than those who did little physical activity at
work. However, heavy physical labor did not reduce heart attack risk.

Compared to those who did little physical activity during leisure time,
the risk of heart attack was 13 percent lower for people who did mild
physical activity and 24 percent lower for those who did moderate or
strenuous activity during leisure time.

People who owned both a car and TV had a 27 percent higher risk of
heart attack than those who owned neither a car nor TV.

A higher percentage of people in low-income nations had sedentary jobs
and did less physical activity in their leisure time, compared to those in
middle- and high-income countries, the researchers noted.

“These differences in PA [physical activity] were most pronounced
regarding leisure-time activity,” they wrote. “This may partly be
explained by differences in education and other socio-economic factors. In
addition, this may also reflect differences in culture and in climate.”
It’s less likely that an individual will performing leisure-time physical
activity in tropical or hot climate zones than in more temperate areas of
the world, they added.

All people should be encouraged to get daily moderate exercise in order
to prevent heart disease, the researchers concluded.

“The data have some real-life implications,” Held said. One suggestion
could be getting lower-income countries more involved in promoting
physical activity as their societies start to use more labor-saving
devices, he said.

More information

The U.S. National Heart, Lung, and Blood Institute offers a guide to physical activity.

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