-- Robert Preidt
MONDAY, Oct. 8 (HealthDay News) -- Fast walking and jogging
every day can cut your risk of heart disease and stroke by as much
as 50 percent, but an hour's walk every day does not make a
difference, according to a new Danish study.
The researchers said their findings suggest that exercise
intensity rather than duration is what matters in protecting
against metabolic syndrome, which refers to a combination of
factors -- such as high blood pressure, elevated blood sugar
levels, abnormal blood fat levels and abdominal obesity -- that
increase the risk of heart disease, diabetes and stroke.
The study was published Oct. 8 in the online journal
Researchers Eva Prescott and colleagues at Bispebjerg University
Hospital, in Copenhagen, looked at more than 10,000 Danish adults,
aged 21 to 98, who were first assessed between 1991 and 1994 and
then followed for up to 10 years. At the initial assessment, about
20 percent of women and 27 percent of men had metabolic
At the study's beginning, those who were least active were most
likely to have the syndrome. Nearly one-third of inactive women and
about 37 percent of inactive men had metabolic syndrome, compared
with 10 percent of physically active women and about 14 percent of
physically active men, according to a journal news release.
By the end of the study period, metabolic syndrome had developed
in about 15 percent of the people who didn't have the syndrome at
the start of the study. The syndrome developed in about 19 percent
of inactive people and 12 percent of those who were very physically
Further investigation showed that it was not only the amount of
exercise, but also the intensity that helped reduce the risk of
metabolic syndrome. Fast walking cut the risk by 50 percent and
jogging cut the risk by 40 percent, while going for an hour-long
walk each day did not make any difference.
The U.S. National Heart, Lung, and Blood Institute has more
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