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自行车既是人们日常生活中的主要交通工具,又是锻炼身体极好的运动方式;一个人每天上、下班骑车四、五公里,一生要行驶数万公里,这对于邮递员来说,更是一个漫长的岁月,为此,应该注意骑车的卫生与防病。自行车的设计,从车把宽窄、鞍坐高低,均有一定的科学道理。具体到每一个人来说,由于体形、体高、腿长不一,车把和鞍坐的高低就要适当调节,一般以鞍坐的水平面到脚蹬的距离比骑车人的脚尖至会阴、臀部的距离稍短些,车把要比鞍坐稍高些为适宜。如
Bicycles are not only the main means of transport for people in their daily life, but also an excellent exercise method for exercising their bodies. A person rides tens of thousands of kilometers a day, commuting four or five kilometers and traveling for a life, which is even more so for postmen Long years, for this reason, should pay attention to cycling health and disease prevention. Bicycle design, from the handlebar width, saddle ride height, have certain scientific truth. Specific to each person, due to body shape, height, legs vary, the height of the handlebar and saddle should be properly adjusted, the general level to saddle ride to the pedal distance than the cyclist’s toe, Slightly shorter hip distance, saddle ride slightly higher than the appropriate number. Such as