以“Sports and Health”为主题写一篇发言稿

发布网友 发布时间：2024-10-04 22:19

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热心网友 时间：2024-10-08 05:25

四、 跑与健康

跑步是一种极为简单、人人都能进行的运动项目，使身体各部位都得到锻炼。跑步对人体的作用比较全面，具体表现为下面几个方面：

跑步可以保护心脏，心脏是人体易衰老的重要器官，心脏的功能正常对其它内脏器官功能有直接的影响。医学上认为，保持健康先要保持心脏功能。中年人易得缺血性心脏病，因冠状动脉堵塞而致心肌缺血，引起心绞痛至心肌梗塞。进行跑步锻炼可使冠状动脉保持良好的血液循环，长期跑步锻炼人的冠状动脉不会因年龄而缩窄，保证有足够的血液供给心肌，从而可以预防各种心脏病，保持良好的心脏功能。跑步是一项全身性运动，能够加速周身血液循环，调整全身血液分布，消除淤血现象。通过下肢运动，推动人体向前移动的同时，有力地驱使静脉血回流心脏，减少下肢静脉和盆腔淤血，预防静脉内血栓形成。跑步可以调节大脑皮质的兴奋和抑制，有益提高神经系统的功能，消除脑力劳动的疲劳，预防神经衰弱。跑步还可以调节人体内部平衡，调剂情绪，振作精神，改善物质代谢，促进新陈代谢，降低血脂水平，胆固醇水平，控制人体重量，减肥的极好方法。经常练习长跑的人是有较深的体会，有明显的健身强心作用。

跑步的具体方法有：

�0�1 慢速放松跑：就是不加任何努力的慢跑。一般慢跑时感到轻松舒服，无疲劳感，心率控制在每分钟110—130次左右，呼吸自然，稍有气喘。动作无要求。一般每周练2—3次，每次练习20分钟左右。坚持经常锻炼，对呼吸系统、心血管系统等有明显的健身效益。

�0�1 中速跑步方法：是用一定的意志努力，速度在每秒5米或心率在140—150次／分左右的跑进方法。这种健身跑步法是较流行的中等强度健身法，已被国内外公认。这种方法对增强心脏功能，调节内脏平衡等有显著的效果。但练习中应注意做好准备活动，放松活动，练习感到明显疲劳，就要停止跑步，做一些放松练习。每周练习1—2次，每次练到疲劳为止。

�0�1 快速跑步方法：是用较大意志努力，较快的速度向前跑进方法，练习时心率一般都在人体最高水平，170—180次／分左右。这种跑法运动强度较大，持续时间较短，一般几秒钟，但可以重复练习。每周练习1—2次就可以了，每次重复3—6次。练习中应循环渐进，做好准备活动和放松整理活动，防止疲劳过度。这种方法对提高人体无氧耐受力，肌肉功能，以及心脏功能有一定作用。有内脏慢性病、心血管、肝、肾病尤为不能练习。防止重病发生。

�0�1 变速跑步法：就是采用快慢结合、走跑结合的交替练习方法。这种跑步法适用于中年中后期人，由于运动量变化较大，练习时可根据个人锻炼水平，控制练习的时间和跑速。一般来说，体质较好的中年人，可快跑与慢跑交替进行，体质较差的中年人，可慢跑与走步交替练习，练习时间控制在感到疲劳明显时结束练习，做一些放松活动，并循序渐进提高练习要求。

�0�1 定时跑步法：就是限定一定时间，进行跑步移动距离，或限定一定距离，缩短跑步时间的练习方法。比较有名的定时跑是12分钟跑，6分钟跑，用来评价自我锻炼的效果，和身体功能水平。经常进行定时跑练习，可以帮助自我了解身体状况，锻炼中如出现难以跑下去的疲劳极点现象，应逐步放慢跑速，甚至停止练习，以防发病现象出现，做好放松活动。

�0�1 原地跑练习法：就是在固定的一块小地方做原地跑步动作的练习方法，如：在房间里、阳台上、跑台上做跑的动作，持续练习的方法。这种方法不受场地、气候、设备条件限制，是一种较方便的锻炼方法。但练习时间应较长，重复步数应较多，一般要练习10分钟以上，才相当于跑进800米距离的慢跑运动量。因此，要求练习较长，练习时大腿抬高一些，重复次数加快些，锻炼效果就好些。这方法适用户外无法练习时，或有疾病做康复保健练习。

�0�1 另外，还有负重跑、障碍跑、蛇形跑、变向跑、协调跑、上下坡跑等练习方法。都可用来健身锻炼。但值得注意的是，任何跑步前应做一些准备活动，跑步中应由慢到快，再由快到慢渐渐放松结束。跑步中应尽量到户外空气清新，没污染的地方练习。跑步锻炼中应循序渐进，逐步提高练习时间或距离；不断坚持抗疲劳练习。应从自身的体质、健康条件，因人因地制宜，从实际出发，灵活掌握，选择跑步练习方法和运动量。坚持经常跑步锻炼，一定能取得满意的健康效果。

热心网友 时间：2024-10-08 05:25

A healthy body is necessary for a healthy mind. As is known, to have a sound mind, we must first have a sound body. This is of vital importance. Only by keeping ourselves healthy and strong can we feel energetic and vigorous in studying and working and live a happy life.

To keep ourselves fit, physical exercise is the best way. In taking part in out-door sports, we are closer to nature and can take in fresh air. The beauty of nature will keep us clear-headed, which is essential to our health. Besides, sports stimulate the circulation of blood and help to excrete the wastes in the body. Sports can also work up our appetite and activate our digestion. As a result, we can become strong-bodied.

I always take an active part in physical exercise and enjoy good health. I seldom get sick but feel vigorous even if I work a whole day Dong. I shall keep up doing physical exercise so as to live longer and do more for the country.

A healthy body is the prerequisite for a healthy mind. As we know, the physical health is of great importance to our sound mind. Without it, the health of our minds is just like castle in the air. Only with a healthy and strong body can we live energetic and vigorous life.

The most efficient way to keep ourselves fit is exercise. In taking part in out-door activities we can breathe the fresh air in nature. In addition, it can stimulate the circulation fo blood and sped up the excretion of the wastes in our bodies. Sports will work up appetite and do good to our digestion. In the same time, we become closer to nature which will help us keep a clear mind in thinking. So naturally we will have a strong and healthy body.

As far as I am concerned, I am always very active in taking part in various physical exercise and I enjoy good health. Most of the time I feel energetic and vigorous even after I work for a whole day. I will keep up taking exercise to have a longer and better life.

热心网友 时间：2024-10-08 05:18

A healthy body is necessary for a healthy mind. As is known, to have a sound mind, we must first have a sound body. This is of vital importance. Only by keeping ourselves healthy and strong can we feel energetic and vigorous in studying and working and live a happy life.

To keep ourselves fit, physical exercise is the best way. In taking part in out-door sports, we are closer to nature and can take in fresh air. The beauty of nature will keep us clear-headed, which is essential to our health. Besides, sports stimulate the circulation of blood and help to excrete the wastes in the body. Sports can also work up our appetite and activate our digestion. As a result, we can become strong-bodied.

I always take an active part in physical exercise and enjoy good health. I seldom get sick but feel vigorous even if I work a whole daylong. I shall keep up doing physical exercise so as to live longer and do more for the country.

运动和健康

健康的身体对于健康的头脑是必要的。众所周知，要有健全的头脑，就应有健全的身体。这是至关重要的。我们只有保持身体健康，才能在学习和工作中精力充沛，生活愉快。

为了保持健康，体育锻炼是最好的方法。参加户外运动，我们能更接近大自然并能吸收新鲜空气。自然界的美使我们头脑清醒，这对健康是极其必要的。另外，运动促进血液循环，有助于排泄体内废物。运动还可以引起食欲，促进消化。这样我们就能身强力壮。

我总是积极参加体育锻炼，身体很好。我很少生病，即使工作一整天也感到精力旺盛。我要坚持体育锻炼，争取长寿，为国家多做些事情。