一、防受凉感冒。秋日清晨气温低,不可穿着单衣去户外活动,锻炼时不宜一下脱衣得太多,应待身体发热时,方可脱下过多的衣服。锻炼后切忌穿着汗湿的衣服在冷风中逗留,以防身体着凉。二、防运动损伤。由于人在气温下降环境下会反射性地引起血管收缩,肌肉伸展度明显降低,关节生理活动度减少,神经系统对运动器官调控能力下降,因而极易造成肌肉、肌腱、韧带及关节的运动损伤。因此,每次运动前一定要注 First, prevent cold cold. Autumn morning temperature is low, can not wear unlined clothing to outdoor activities, exercise should not look too much undressing, should be the body heat, before taking off too much clothes. After exercise should not wear sweaty clothes to stay in the cold in case of body cold. Second, anti-sports injury. As people in the temperature dropped environment will cause vasoconstriction reflex, muscle extensibility was significantly reduced, joint activity decreased, the nervous system on the regulation of sports organs decreased, which can easily lead to muscle, tendon, ligament and joint injury . Therefore, before each exercise must be noted