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Liver Drug May Help Exhausted Spacewalkers
tabsey
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2
6-25-2008 10:13 AM
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tags:
medical
tabsey
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Explains the fitness needs of an astronaut.
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<div style="margin: 12px 0px; font-family: arial; color: #333333; background: #ffffff; border: solid 4px #e5e5e5; width: 100%; clear: left;"><div class="CM_CTB_Content_Wrap" style="margin: 0px; padding: 0px;background-color: #ffffff;"><div style="border-bottom: solid 1px #dcdcdc; white-space: nowrap; margin-bottom: 8px; background-color: #eeeeee ;background-image: url(http://www.clipmarks.com/images/source-bg.gif); background-repeat: repeat-x; height: 24px; line-height: 24px; vertical-align: middle; padding-bottom: 4px; color: #666666; font-size: 10px;" ><a href="http://clipmarks.com/clip-to-blog/" title="see clips that are hot right now"><img src="http://content.clipmarks.com/blog_embed/e6a1e59b-a55a-4593-9e6a-23636d82c4d4/6EC14372-016C-45F3-A906-9403CF1AD923/" alt="" width="19" height="19" border="0" style="vertical-align: middle; margin: 0px 4px; display: inline; border: none; float:none;" /></a>clipped from <a title="http://www.space.com/businesstechnology/080625-tw-spacewalk-drug.html" href="http://www.space.com/businesstechnology/080625-tw-spacewalk-drug.html" style="font-size: 11px;">www.space.com</a></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.space.com/businesstechnology/080625-tw-spacewalk-drug.html"><SPAN>Future astronauts might better endure exhausting spacewalks with the help of a handy liver drug.</SPAN></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.space.com/businesstechnology/080625-tw-spacewalk-drug.html"><SPAN>The drug captures free radical molecules produced during heavy exercise that could damage muscle tissue and cause fatigue for spacewalkers already facing the muscle-wasting effect of weightlessness.</SPAN></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.space.com/businesstechnology/080625-tw-spacewalk-drug.html"><SPAN>"Astronauts report that six to eight hours of extra-vehicular activity is as exhausting as <A href="http://www.space.com/php/video/player.php?video_id=070402ISS_Training">running a marathon</A>," said Michael Reid, head physiologist at the University of Kentucky who leads an ongoing study. "The muscle groups most affected are the hands and arms."</SPAN></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.space.com/businesstechnology/080625-tw-spacewalk-drug.html"><SPAN>NASA tries to limit the duration of its spacewalks to about 6 1/2 hours on average because astronauts become tired working in their bulky spacesuits. Future astronauts may have <A href="http://www.space.com/missionlaunches/080613-spacesuits-constellation-contract.html">more flexible spacesuits</A> to work with, but researchers still look to counteract the muscle fatigue in the shoulders, arms, wrists and hands.</SPAN></blockquote></div><div style="margin: 0px 6px 6px 4px;"><table style="font-size: 11px;border-spacing: 0px;padding: 0px;" cellpadding="0" cellspacing="0" width="100%"><tr><td style="background:transparent;border-width:0px;padding:0px;"> </td><td align="right" style="background:transparent;border-width:0px;padding:0px;width:107px" width="107"><a href="http://clipmarks.com/share/6EC14372-016C-45F3-A906-9403CF1AD923/blog/" title="blog or email this clip"><img src="http://content6.clipmarks.com/images/c2b-foot.png" border="0" alt="blog it" width="107" height="17" style="border-width:0px;padding:0px;margin:0px;" /></a></td></tr></table></div></div>
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