游泳的好处
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: center" align=center><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: Arial">1</SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: Arial; mso-bidi-font-family: Arial; mso-hansi-font-family: Arial">．增强心肌功能</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: Arial"> <BR></SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: Arial; mso-bidi-font-family: Arial; mso-hansi-font-family: Arial">人在水中运动时，各器官都参与其中，耗能多，血液循环也随之加快，以供给运动器官更多的营养物质。血液速度的加快，会增加心脏的负荷，使其跳动频率加快，收缩强而有力。经常游泳的人，心脏功能极好。一般人的心率为</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: Arial">70——80</SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: Arial; mso-bidi-font-family: Arial; mso-hansi-font-family: Arial">次</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: Arial">/</SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: Arial; mso-bidi-font-family: Arial; mso-hansi-font-family: Arial">分，每搏输出量为</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: Arial">60——80</SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: Arial; mso-bidi-font-family: Arial; mso-hansi-font-family: Arial">毫升。而经常游泳的人心率可达</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: Arial">50——55</SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: Arial; mso-bidi-font-family: Arial; mso-hansi-font-family: Arial">次</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: Arial">/</SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: Arial; mso-bidi-font-family: Arial; mso-hansi-font-family: Arial">分，很多优秀的游泳运动员，心率可达</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: Arial">38——46</SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: Arial; mso-bidi-font-family: Arial; mso-hansi-font-family: Arial">次</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: Arial">/</SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: Arial; mso-bidi-font-family: Arial; mso-hansi-font-family: Arial">分，每搏输出量高达</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: Arial">90——120</SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: Arial; mso-bidi-font-family: Arial; mso-hansi-font-family: Arial">毫升。游泳时水的作用使肢体血液易于回流心脏，使心率加快。长期游泳会有明显的心脏运动性增大，收缩有力，血管壁厚度增加弹性加大，每搏输出血量增加。所以，游泳可以锻炼出一颗强而有力的心脏。</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: Arial"> <BR><BR>2</SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: Arial; mso-bidi-font-family: Arial; mso-hansi-font-family: Arial">．增强抵抗力</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: Arial"> <BR></SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: Arial; mso-bidi-font-family: Arial; mso-hansi-font-family: Arial">游泳池的水温常为</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: Arial">26</SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: Arial; mso-bidi-font-family: Arial; mso-hansi-font-family: Arial">度到</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: Arial">28</SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: Arial; mso-bidi-font-family: Arial; mso-hansi-font-family: Arial">度，在水中浸泡散热快，耗能大。为尽快补充身体散发的热量，以供冷热平衡的需要，神经系统便快速做出反应，使人体新陈代谢加快，增强人体对外界的适应能力，抵御寒冷。经常参加冬泳的人，由于体温调节功能改善，就不容易伤风感冒，还能提高人体内分泌功能，是脑垂体功能增加，从而提高对疾病的抵抗力和免疫力。</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: Arial"> <BR><BR>3</SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: Arial; mso-bidi-font-family: Arial; mso-hansi-font-family: Arial">．减肥</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: Arial"> <BR></SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: Arial; mso-bidi-font-family: Arial; mso-hansi-font-family: Arial">游泳时身体直接浸泡在水中，水不仅阻力大，而且导热性能也非常好，散热速度快，因而消耗热量多。就好比一个刚煮熟的鸡蛋，在空气中的冷却速度，远远不如在冷水中快，实验证明：人在标准游泳池中跑步</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: Arial">20</SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: Arial; mso-bidi-font-family: Arial; mso-hansi-font-family: Arial">分钟所消耗的热量，相当于同样速度在陆地上的</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: Arial">1</SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: Arial; mso-bidi-font-family: Arial; mso-hansi-font-family: Arial">小时，在</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: Arial">14</SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: Arial; mso-bidi-font-family: Arial; mso-hansi-font-family: Arial">度的水中停留</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: Arial">1</SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: Arial; mso-bidi-font-family: Arial; mso-hansi-font-family: Arial">分钟所消耗的热量高达</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: Arial">100</SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: Arial; mso-bidi-font-family: Arial; mso-hansi-font-family: Arial">千卡，相当于在同温度空气中</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: Arial">1</SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: Arial; mso-bidi-font-family: Arial; mso-hansi-font-family: Arial">小时所散发的热量。由此可见，在水中运动，会使许多想减肥的人，取得事半功倍的效果，所以，游泳是保持身材最有效的运动之一。</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: Arial"> <BR><BR>4</SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: Arial; mso-bidi-font-family: Arial; mso-hansi-font-family: Arial">．健美形体</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: Arial"> <BR></SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: Arial; mso-bidi-font-family: Arial; mso-hansi-font-family: Arial">人在游泳时，通常会利用水的浮力俯卧或仰卧于水中，全身松弛而舒展，使身体得到全面、匀称、协调的发展，使肌肉线条流畅。在水中运动由于减少了地面运动时地对骨骼的冲击性，降低了骨骼的老损机率，使骨关节不易变形。水的阻力可增加人的运动强度，但这种强度，又有别于陆地上的器械训练，是很柔和的，训练的强度又很容易控制在有氧域之内，不会长出很生硬的肌肉块，可以使全身的线条流畅，优美。</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: Arial"> <BR><BR>5</SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: Arial; mso-bidi-font-family: Arial; mso-hansi-font-family: Arial">．加强肺部功能</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: Arial"> <BR></SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: Arial; mso-bidi-font-family: Arial; mso-hansi-font-family: Arial">呼吸主要靠肺，肺功能的强弱由呼吸肌功能的强弱来决定，运动是改善和提高肺活量的有效手段之一。据测定：游泳时人的胸部要受到</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: Arial">12—<?xml:namespace prefix = st1 ns = "urn:schemas-microsoft-com:office:smarttags" /><st1:chmetcnv w:st="on" UnitName="公斤" SourceValue="15" HasSpace="False" Negative="False" NumberType="1" TCSC="0">15<SPAN lang=EN-US style="FONT-FAMILY: 宋体; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial"><SPAN lang=EN-US>公斤</SPAN></SPAN></st1:chmetcnv><SPAN lang=EN-US style="FONT-FAMILY: 宋体; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial">的压力，加上冷水刺激肌肉紧缩，呼吸感到困难，迫使人用力呼吸，加大呼吸深度，这样吸入的氧气量才能满足机体的需求。一般人的肺活量大概为</SPAN>3200</SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: Arial; mso-bidi-font-family: Arial; mso-hansi-font-family: Arial">毫升，呼吸差（最大吸气与最大呼气时胸围扩大与缩小之差）仅为</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: Arial">4—<st1:chmetcnv w:st="on" UnitName="厘米" SourceValue="8" HasSpace="False" Negative="False" NumberType="1" TCSC="0">8<SPAN lang=EN-US style="FONT-FAMILY: 宋体; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial"><SPAN lang=EN-US>厘米</SPAN></SPAN></st1:chmetcnv><SPAN lang=EN-US style="FONT-FAMILY: 宋体; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial">，剧烈运动时的最大吸氧量为</SPAN>2.5——<st1:chmetcnv w:st="on" UnitName="升" SourceValue="3" HasSpace="False" Negative="False" NumberType="1" TCSC="0">3<SPAN lang=EN-US style="FONT-FAMILY: 宋体; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial"><SPAN lang=EN-US>升</SPAN></SPAN></st1:chmetcnv>/</SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: Arial; mso-bidi-font-family: Arial; mso-hansi-font-family: Arial">分，比安静时大</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: Arial">10</SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: Arial; mso-bidi-font-family: Arial; mso-hansi-font-family: Arial">倍；而游泳运动员的肺活量可高达</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: Arial">4000—7000</SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: Arial; mso-bidi-font-family: Arial; mso-hansi-font-family: Arial">毫升，呼吸差达到</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: Arial">12—<st1:chmetcnv w:st="on" UnitName="厘米" SourceValue="15" HasSpace="False" Negative="False" NumberType="1" TCSC="0">15<SPAN lang=EN-US style="FONT-FAMILY: 宋体; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial"><SPAN lang=EN-US>厘米</SPAN></SPAN></st1:chmetcnv><SPAN lang=EN-US style="FONT-FAMILY: 宋体; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial">，剧烈运动时的最大吸氧量为</SPAN>4.5——<st1:chmetcnv w:st="on" UnitName="升" SourceValue="7.5" HasSpace="False" Negative="False" NumberType="1" TCSC="0">7.5<SPAN lang=EN-US style="FONT-FAMILY: 宋体; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial"><SPAN lang=EN-US>升</SPAN></SPAN></st1:chmetcnv>/</SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: Arial; mso-bidi-font-family: Arial; mso-hansi-font-family: Arial">分，比安静时增大</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: Arial">20</SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: Arial; mso-bidi-font-family: Arial; mso-hansi-font-family: Arial">倍。游泳促使人呼吸肌发达，胸围增大，肺活量增加，而且吸气时肺泡开放更多，换气顺畅，对健康极为有利。</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: Arial"> <BR><BR>6</SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: Arial; mso-bidi-font-family: Arial; mso-hansi-font-family: Arial">．护肤</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: Arial"> <BR></SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: Arial; mso-bidi-font-family: Arial; mso-hansi-font-family: Arial">人在游泳时，水对肌肤、汗腺、脂肪腺的冲刷，起到了很好的按摩作用，促进了血液循环，使皮肤光滑有弹性。此外，在水中运动时，大大减少了汗液中盐分对皮肤的刺激。</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: Arial"> <BR><BR style="mso-special-character: line-break"><BR style="mso-special-character: line-break"></SPAN></P><BR> 7、结识更多的朋友<br>8、丰富业余生活<br>9、减少参与不良活动的机会 <P>学习了</P> 好贴！受益～～顶！ 好贴不应沉，顶上去！
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