Portland observer. (Portland, Or.) 1970-current, March 26, 2014, Page 5, Image 5

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    March 26, 2014
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Page 5
Study Finds Benefits of Light Exercise
Key is offsetting our
sedentary ways
A new study looking at activity trends and health
outcomes for adults found that you don’t need to kill
yourself by running 10 miles a day to gain health benefits
- you merely need to log more minutes of light physical
activity than of sedentary behavior.
And the bar is pretty
low for what consti­
tutes light physical ac­
tivity, researchers say.
It can mean sauntering
through a mall window­
shopping instead of or­
dering online, fishing
along a riverbank, or
ballroom dancing.
V
In other words, cast­
ing a spinner or spin­
ning on the dance floor
can help offset our sed­
entary ways.
The problem , the
authors say, is that
nearly half of Ameri- B ra d le y C a rd in a l
cans surveyed did not
engage in a sufficient amount of moderate-to-vigorous
physical activity (more than 150 minutes a week) and, in
fact, spent more time in sedentary mode than even doing
light physical activity.
“That’s actually rather frightening,” said Bradley
Cardinal, co-director of the Sport and Exercise Psychol­
ogy Program at Oregon State University and co-author
on the study. “About half of the people in this country
are incredibly sedentary - basically, couch potatoes.
And that can have some very negative effects on one’s
health.”
The study looked at the activity patterns of more than
5,500 adults. Participants wore accelerometers record-
ing movements that could be broken down by the minute,
and the researchers found that 47 percent of Americans
engaged in less than 150 minutes a week of moderate-to-
vigorous physical activity and, perhaps more impor­
tantly, logged fewer minutes of light physical activity
than of sedentary behavior.
They found that when the balance was on the positive
side - adults spent more time moving than sitting - there
was a strong association with favorable levels of triglyc-
erides and insulin.
It is preferable to get at least 30 minutes a day of moderate-to-
vigorous physical activity in each day, but we now know that if you
sit for the remainder of the day after getting this dose o f exercise,
you might not necessarily be escaping the risk of developing
chronic disease, said Paul Loprinzi, a former doctoral student
under Cardinal in OSU’s College of Public Health and Human
Sciences. Now an assistant professor at Bellarmine University,
Loprinzi is lead author on the study.
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