foodconsumer.org: Physical Activity Cuts Prostate Cancer Risk

Physical Activity Cuts Prostate Cancer Risk
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admin on 11/01/2009 23:47:00
 
Dennis Hopper diagnosed with prostate cancer
Actor and filmmaker Dennis Hopper has been diagnosed with prostate cancer, the
common male reproductive malignancy.
His manager, Sam Maydew tells CNN that Hopper, 73, is being treated at the
University of Southern California, no other details were released.
Prostate cancer is not as aggressive as many other types of cancer. It strikes
more than 192,000 men in the United State every year; 27,000 are expected to die
from this disease within the same year they are diagnosed.
Hopper was expected to show up at an exhibition of his photography at the
Australian Center for the Moving Image in Melbourne, but his travel plans were
canceled.
Hopper was hospitalized weeks ago in New York for flu like symptoms and stomach
upset, but was released next day.
The Academy Award winner acted in films including "Rebel Without a Cause,"
"Hoosiers," "Apocalypse Now" and "Easy Rider," among others.
The following is a new study showing that there is something men can do to
reduce the risk of prostate cancer.
Physical Activity Cuts Prostate Cancer Risk
High levels of physical activity may help reduce risk of prostate cancer, a new
study published on Oct 27, 2009 in the online British Journal of Cancer,
suggests.
The study, led by N. Orsini from Karolinska Institutet in Stockholm, Sweden and
colleagues found an inverse association between physical activity, such as
walking or bicycling, and risk of prostate cancer.
Orsini and colleagues analyzed data from a cohort of 45,887 men aged 45 - 79
years; the researchers followed them between January 1998 and December 2007,
checking for prostate cancer incidence.  They also tested the patients between
1998 and December 2006 for its subtypes and for fatal prostate cancer.
During the follow-ups, 2735 cases of prostate cancer and 190 cases of fatal
prostate cancer were recorded.
The researchers observed an inverse association between lifetime physical
activity levels and prostate cancer risk.
Specifically, prostate cancer incidence in the top quartile of lifetime total
physical activity was decreased by 16% compared with that in the bottom
quartile.
A similar inverse association was also found between average lifetime work or
occupational activity and walking or bicycling duration and the risk of prostate
cancer.
Compared with those who were required to sit for the most of their workday, men
who sit only half of the time experienced a 20% reduced risk.
For every 30 minutes per day increment of lifetime walking or bicycling in the
range of 30 to 120 minutes per day, the risk for total prostate cancer decreased
by 7 percent; for localized prostate cancer by 8 percent and for advanced
prostate cancer by 12 percent.
The researchers concluded "Our results suggest that not sitting for most of the
time during work or occupational activity and walking or bicycling more than 30
min per day during adult life is associated with reduced incidence of prostate
cancer."
By David Liu and editing by Rachel Stockton
Source:
Br J Cancer. 2009 Oct 27.
A prospective study of lifetime physical activity and prostate cancer incidence
and mortality.
Orsini N, Bellocco R, Bottai M, Pagano M, Andersson SO, Johansson JE,
Giovannucci E, Wolk A.
Division of Nutritional Epidemiology, The National Institute of Environmental
Medicine, Karolinska Institutet, Stockholm, Sweden.