我们都知道缺乏运动对身体不利。事实上,长时间保持同样的姿势亦对健康不利,更长时间保持坐姿更是有害。人体解剖学知识告诉我们,脊柱有26块骨头,4个正常的生理弯曲,处于身体生长发育期的广大青少年学生,如果一天中大多数时间都保持坐姿,就必须重视自己肌肉的僵硬和酸痛,因为脖颈、后背、大腿后侧肌肉、小腿的肌肉长期持续不动,会引起肌肉萎缩,严重时引起颈椎功能障碍、椎间盘劳损、脊柱的侧弯等病症,不仅身体自我感觉越来越缺乏活力,体形也会变得越来越难看。所谓伸展练习就是针对肌肉的疲劳做 We all know that lack of exercise is not good for the body. In fact, maintaining the same posture for a long time is also detrimental to health, and it is even more harmful to maintain a seated position for a longer period of time. The knowledge of human anatomy tells us that there are 26 bones in the spine and 4 normal physiological bends. The majority of young students in the period of growth and development of the body must pay attention to the stiffness and soreness of their muscles if they remain seated most of the day. Because the muscles of the back of the neck, back, thigh, and lower leg remain motionless for a long period of time, it can cause muscle atrophy. In severe cases, it causes cervical dysfunction, disc strain, and scoliosis of the spine. Not only does the body feel less and less energetic. The body shape will become more and more ugly. The so-called stretching exercises are for muscle fatigue