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In the past decade the popularity of rock climbing has greatly increased, and so has the number of
injuries. It has been estimated that rock climbing is now enjoyed by more than 9 million people in the US
each year. Study findings revealed a 65 percent increase in the number of patients that were treated in US emergency departments for rock climbingrelated injuries between 1991 and 2008.
The study, published in the online issue of the American Journal of Preventive Medicine, found that
about 40, 000 patients were treated in US emergency departments for rock climbingrelated injuries
between 1991 and 2008. The most common types of rock climbingrelated injuries were fractures (骨折)
and sprains (扭傷). The ankle was the most common body part to be injured (40 percent). Climbers in the study ranged in age from 2 to 74, with an average age of 26. The study also found that women took up a
quarter of the injuries.
Falls were the primary reason for injury with over threequarters of the injuries occurring as the result of a fall. The severity of fallrelated injuries had a lot to do with the height of the fall. Patients who were injured after falling from a height over 20 feet were 10 times more likely to be treated than patients who were
injured falling from 20 feet or lower.
"We found that the climbers who fell from heights higher than 20 feet took up 70 percent of the patients treated for a rock climbingrelated injury," explained the study author Lara McKenzie, PhD, director at
the Center for Injury Research and Policy at Nationwide Hospital." This trend, combined with the fact that rock climbers have a higher hospitalization rate than other sports and recreational injuries, demonstrates the need to increase injury prevention efforts for climbers."
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Personal computers and the Internet give people new choices about how to spend their time.
Some may use this freedom to share less time with certain friends or family members, but new
technology will also let them stay in closer touch with those they care most about. I know this from
personal experience.
E-mail makes it easy to work at home, which is where I now spend most weekends and evenings.
My working hours aren't necessarily much shorter than they once were but I spend fewer of them at
the office. This lets me share more time with my young daughter than I might have if she'd been
born before electronic mail became such a practical tool.
The Internet also makes it easy to share thoughts with a group of friends. Say you do something
fun see a great movie perhaps-and there are four or five friends who might want to hear about it. If
you call each one, you may tire of telling the story.
With E-mail, you just write one note about your experience, at your convenience, and address it
to all the friends you think might be interested. They can read your message when they have time, and
read only as much as they want to. They can reply at their convenience, and you can read what they
have to say at your convenience.
E-mail is also an inexpensive way stay in close touch with people who live far away. More than
a few parents use E-mail to keep in touch, even daily touch, with their children off at college.
We just have to keep in mind that computers and the Internet offer another way ofstaying in touch.
They don't take the place of any of the old ways.
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