本实验采用37只狗(33只用作实验,4只作为对照)。将实验狗放在小笼子内,限制活动1、2、3、4、5、6、8、12、16周后,杀死动物,向脑血管注射以带色的充填剂,作透明切片进行检查;用组化方法研究9只动物(2只作对照,7只作实验)的脑血管。研究结果表明,少动可使脑血管结构发生重要改变。在限制活动的头三周,血管仅是数量上的改变, In this study, 37 dogs (33 for experiment and 4 for control) were used. The experimental dogs were placed in small cages, limiting activities 1, 2, 3, 4, 5, 6, 8, 12 and 16 weeks later, animals were sacrificed, cerebrovascular injection with colored filler was performed as transparent sections Examination; 9 animals were studied by histochemistry (2 controls and 7 as experimental). The results show that less movement can make important changes in cerebral vascular structure. In the first three weeks of restricted activity, blood vessels were only a quantitative change,