冷天在室外参加体育最炼,如果衣服穿得很单薄,天气又冷得厉害,容易发生胳膊腿痛的现象,这是怎么一回事呢?原来,在四肢骨略的外边,有一层薄薄的骨膜,骨膜上的血管、神经对外界寒冷的空气比较敏感,它受到寒冷的刺激以后,上面的血管收缩变细,血液循环不良,甚至发生暂时的贫血现象。通过神经末稍的传导,使人感到骨头酸痛,这种酸痛的感觉比较深,不是在皮肉的表面,有时持续的时间较长,可达两三天左右,影晌暂时的身体般炼。此种现象的发生,常在初冬季节,因为这时天气刚冷,人们对寒冷还没有适应,身体的抗寒能力较差。平时较少参加体育锻炼的人,心肺的功能较低,四肢的血液循环也不好,更容易发生这种现象。 Cold weather to participate in outdoor sports most refining, if the clothes are worn thin, the weather was cold and terrible, prone to the phenomenon of arm and leg pain, which is how the same thing? It turned out that the limbs slightly outside, a thin Thin periosteum, periosteal blood vessels, nerves on the outside world is more sensitive to cold air, it is stimulated by the cold, the above blood vessels narrowed, poor blood circulation, and even temporary anemia. Conducted through the nerve endings, people feel bones sore, this sore feeling deep, not in the flesh surface, and sometimes last longer, up to two or three days, affecting the temporary body like refining. Occurrence of this phenomenon, often in the early winter, because the weather was cold, people have not yet adapted to the cold, the body’s poor ability to cold. Usually less physical exercise to participate in people, lower cardiopulmonary function, limbs, blood circulation is not good, more prone to this phenomenon.