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How do we decide whether to walk or run? -Cognitive Daily
arifsali
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4-2-2008 2:15 PM
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exercise
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walking
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running
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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://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/b19c0d0f-aa48-424a-aaf8-3dfe53387f03/A0DB3DF5-94DA-45A7-81A8-0BD930B8AAE2/" 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://scienceblogs.com/cognitivedaily/2008/04/how_do_we_decide_whether_to_wa.php" href="http://scienceblogs.com/cognitivedaily/2008/04/how_do_we_decide_whether_to_wa.php" style="font-size: 11px;">scienceblogs.com</a></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://scienceblogs.com/cognitivedaily/2008/04/how_do_we_decide_whether_to_wa.php">Imagine yourself walking on a treadmill that starts at a reasonable pace: say, two and a half miles per hour. Every two minutes, the treadmill increases its speed by 0.2 mph: 2.7 mph, 2.9 mph, 3.1 mph, and so on. If you're in good physical condition, at some point -- usually between about 3.0 and 4.5 mph -- you'll find it more comfortable to start running instead of walking. Different individuals have different thresholds based on their fitness level and other factors, but even taking these things into account, it's difficult to explain exactly why people start running when they do. Do different people have different thresholds for pain?</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://scienceblogs.com/cognitivedaily/2008/04/how_do_we_decide_whether_to_wa.php">Gregory Daniels and Karl Newell paid 12 physically fit college students to walk on a treadmill as it gradually increased in speed. To disguise the real purpose of the study, the students were fitted with fake oxygen consumption meters and cardiographs. They were told to walk, but to begin running as soon as it felt more comfortable.</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/A0DB3DF5-94DA-45A7-81A8-0BD930B8AAE2/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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