江南飘雪 发表于 2007-9-6 10:17

游泳对增强呼吸系统功能有良好作用

<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; mso-char-indent-count: 2.0"><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman"><FONT size=3>游泳对增强呼吸系统功能有良好作用</FONT></SPAN></P><P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; mso-char-indent-count: 2.0"><FONT size=3><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman">游泳是所有运动项目中对呼吸系统影响最大的一个项目，这与水中呼吸的条件要比陆上困难以及游泳的姿势、水的压力等因素有关。据测定，空气的密度是</SPAN><SPAN lang=EN-US>1.29</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman">克／升，水的密度为</SPAN><SPAN lang=EN-US>1000</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman">／升，水的密度是空气的</SPAN><SPAN lang=EN-US>800</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman">多倍。人若在水中静止不动，水深每增加</SPAN><SPAN lang=EN-US>1</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman">米，每平方厘米体表面积所受的压力要增大</SPAN><SPAN lang=EN-US>0.01</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman">个大气压。人站在齐胸深的水中，感觉呼吸较费力，是因为胸腔受到水的压力高达</SPAN><SPAN lang=EN-US>12-15</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman">千克，这就迫使呼吸肌必须更大力量来完成呼吸动作。经常进行游泳锻炼，不仅可增大呼吸肌的力量，扩大胸部活动幅度，而且能增大肺的容量，提高呼吸系统的功能。游泳运动员的呼吸差可达</SPAN><SPAN lang=EN-US>14-17</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman">厘米，南明一般人只有</SPAN><SPAN lang=EN-US>6-8</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman">厘米；游泳运动员的肺活量可达</SPAN><SPAN lang=EN-US>4000-6000</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman">毫升，个别优秀运动员可达</SPAN><SPAN lang=EN-US>7000</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman">多毫升，一般只有</SPAN><SPAN lang=EN-US>3000-4000</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman">毫升。</SPAN></FONT></P>

寒江搏浪 发表于 2007-9-6 10:49

<P><FONT size=5><FONT face=宋体>游泳运动员的呼吸差可达</FONT><SPAN lang=EN-US>14-17</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: " Roman?? New ?Times mso-hansi-font-family: Roman?; Times>厘米，一般人只有</SPAN><SPAN lang=EN-US>6-8</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: " Roman?? New ?Times mso-hansi-font-family: Roman?; Times>厘米；游泳运动员的肺活量可达</SPAN><SPAN lang=EN-US>4000-6000</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: " Roman?? New ?Times mso-hansi-font-family: Roman?; Times>毫升，个别优秀运动员可达</SPAN><SPAN lang=EN-US>7000</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: " Roman?? New ?Times mso-hansi-font-family: Roman?; Times>多毫升，一般只有</SPAN><SPAN lang=EN-US>3000-4000</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: " Roman?? New ?Times mso-hansi-font-family: Roman?; Times>毫升。</SPAN></FONT></P><P><FONT size=5><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: " Roman?? New ?Times mso-hansi-font-family: Roman?; Times>太有参考价值了!</SPAN></FONT></P>

傲雪寒梅 发表于 2007-9-7 15:54

原文由 寒江搏浪 发表: <br><P><FONT size=5><FONT face=宋体>游泳运动员的呼吸差可达</FONT><SPAN lang=EN-US>14-17</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: " Roman?? New ?Times mso-hansi-font-family: Roman?; Times>厘米，一般人只有</SPAN><SPAN lang=EN-US>6-8</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: " Roman?? New ?Times mso-hansi-font-family: Roman?; Times>厘米；游泳运动员的肺活量可达</SPAN><SPAN lang=EN-US>4000-6000</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: " Roman?? New ?Times mso-hansi-font-family: Roman?; Times>毫升，个别优秀运动员可达</SPAN><SPAN lang=EN-US>7000</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: " Roman?? New ?Times mso-hansi-font-family: Roman?; Times>多毫升，一般只有</SPAN><SPAN lang=EN-US>3000-4000</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: " Roman?? New ?Times mso-hansi-font-family: Roman?; Times>毫升。</SPAN></FONT></P><P><FONT size=5><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: " Roman?? New ?Times mso-hansi-font-family: Roman?; Times>太有参考价值了!</SPAN></FONT></P>
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