久坐对身体有什么危害
来源:http://www.zuixianya666.com/  2014-7-5 10:33:11
久坐不动,新陈代谢自然放缓,身体消耗的能量也较少,多余的热量囤积在体内容易转化为脂肪,长年累月会使人越来越胖。更易觉察到的是腰围变粗了,或索性“长肚子”,体重明显增加。
A sedentary, natural slow metabolism, the body the energy consumption is also less, excess heat hoarding easy to fat in the body, long can make the person is more and more fat. Is the most easily perceived coarsened waistline, or simply "stomach" long, weight increased significantly.
久坐会使人的下肢肌肉收缩减少,肌肉活动性一下降,血管的收缩力也跟着下降,血液的流速变慢甚至不畅,可引发下肢静脉曲张,腿上可见不同程度的静脉突起,弯弯曲曲像蚯蚓一样;严重的还会形成下肢深静脉血栓。
Sedentary will reduce human lower limb muscle contraction, the muscle activity, a drop, blood vessel contraction force declines, slow blood flow, even can cause varicose veins of lower limb, legs visible on different levels of vein protuberant, like earthworms winding; Serious still can form deep vein thrombosis of lower limbs.
不良的坐姿有很大一部分是因坐椅不合适引起的。现在很多办公椅都带有滑轮,稳定性不够,使人坐上去后身体肌肉处于相当紧张的状态。建议选用那种四平八稳、坐上去能使人很放松的椅子。

A good portion of poor posture is caused by inappropriate sit chair. Now a lot of office chair with a pulley, stability is not enough, make people sit up body muscle is in a state of nervous. Suggested to choose the kind and can make people very relaxing to sit on the chair.

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