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Berjalan-jalan di kantor dapat membalikkan disfungsi vaskular yang disebabkan oleh ber jam- jam di depan komputer
Date:
September 28, 2015
Source:
University of Missouri-Columbia
Summary:
Di seluruh negeri , banyak karyawan yang duduk di meja dengan sebagian besar delapan jam hari kerja . Sebagai teknologi yang menciptakan peningkatan gaya hidup menetap , dampak pada kesehatan pembuluh darah duduk adalah kekhawatiran yang meningkat . Sekarang , para peneliti telah menemukan bahwa ketika seseorang duduk selama enam jam lurus , fungsi pembuluh darah terganggu - tapi dengan berjalan kaki selama hanya 10 menit setelah waktu duduk yang lama , kesehatan vaskular dapat dikembalikan .
............ " Namun , penelitian kami menemukan bahwa ketika Anda duduk selama enam jam lurus , atau mayoritas hari kerja selama delapan jam , aliran darah ke kaki Anda sangat berkurang . Kami juga menemukan bahwa hanya 10 menit berjalan setelah duduk untuk waktu yang panjang kan membalikan konsekuensi yang merugikan . "....more
A walk around
the office can reverse vascular dysfunction caused by hours at a computer
Date:
September 28, 2015
Source:
University of Missouri-Columbia
Summary:
Across the country, many employees are seated at desks for the majority of
an eight-hour workday. As technology creates an increase in sedentary
lifestyles, the impact of sitting on vascular health is a rising concern. Now,
researchers have found that when a person sits for six straight hours, vascular
function is impaired -- but by walking for just 10 minutes after a prolonged
period of sitting, vascular health can be restored.
...................
Across the country, many employees are seated at desks for the majority of
an eight-hour workday. As technology creates an increase in sedentary lifestyles,
the impact of sitting on vascular health is a rising concern. Now, researchers
from the University of Missouri School of Medicine have found that when a
person sits for six straight hours, vascular function is impaired -- but by
walking for just 10 minutes after a prolonged period of sitting, vascular
health can be restored.
"It's easy for all of us to be consumed by work and lose track of
time, subjecting ourselves to prolonged periods of inactivity," said Jaume
Padilla, Ph.D., an assistant professor of nutrition and exercise physiology at
the MU School of Medicine and lead author of the study. "However, our
study found that when you sit for six straight hours, or the majority of an
eight-hour work day, blood flow to your legs is greatly reduced. We also found
that just 10 minutes of walking after sitting for an extended time reversed the
detrimental consequences."
During the study, the researchers compared the vascular function of 11
healthy young men before and after a period of prolonged sitting. The findings
indicated that blood flow in the popliteal -- an artery in the lower leg -- was
greatly reduced after sitting at a desk for six hours. Researchers then had the
participants take a short walk, and found that 10 minutes of self-paced walking
could restore the impaired vascular function and improve blood flow.
"When you have decreased blood flow, the friction of the flowing blood
on the artery wall, called shear stress, is also reduced," Padilla said.
"Moderate levels of shear stress are good for arterial health, whereas low
levels of shear stress appear to be detrimental and reduce the ability of the
artery to dilate. Dilation is a sign of vascular health. The more the artery
can dilate and respond to stimuli, the healthier it is."
Many workplaces are sedentary environments, and the researchers said it's
important that people understand the effects of sitting on their vascular
health. By breaking up desk time with a short walk, workers can offset the harm
caused to vascular blood vessels.
"Studies have shown that sitting less can lead to better metabolic and
cardiovascular health," Padilla said. "However, more research is
needed to determine if repeated periods of reduced vascular function with
prolonged sitting lead to long-term vascular complications."
Story Source:
The above post is reprinted from materials provided byUniversity
of Missouri-Columbia. Note: Materials may be edited for content
and length.
Journal Reference:
1.
Robert M. Restaino, Seth W. Holwerda, Daniel P. Credeur, Paul J. Fadel,
Jaume Padilla. Impact of prolonged sitting on lower and upper limb
micro- and macrovascular dilator function. Experimental Physiology,
2015; 100 (7): 829 DOI: 10.1113/EP085238