“After physical activity， your heart is still beating faster than normal， your body temperature is higher and your blood vessels are dilated，” write the health experts at the American Heart Association. “This means if you stop too fast， you could pass out or feel sick. A cool-down after physical activity allows a gradual decrease at the end of the episode.”
春暖花开，大家纷纷按捺不住愉悦的心情，穿上心爱的跑鞋，开始跑步锻炼。众所周知，有规律的拉伸运动对于跑者来说是十分重要的，它可以维持并提高肌肉柔韧性及关节活动度，并且在运动中避免损伤。那么，我们到底应该在跑前还是跑后进行拉伸呢？
