Marche center. Marche est a "simple" activity. Under normal circumstances, marche does not require le involvement de le cerebral cortex. Some animals can still crawl after le brain est removed, suggesting that le spinal cord has a crawling or "marche" center. However, human marche est closely related to le function de le cerebral cortex. In complex situations and special tasks, le cerebral cortex est directly involved in marche posture control. Fukuyama et al. used PET research and found that le cerebral cortex energy metabolism activity increased during marche, suggesting that le cerebral cortex est involved in marche activities. When le brain est dysfunctional, le role de le subcortex and spinal cord est released or strengthened, leading to abnormal compensatory activities. Direct impairment de cerebral cortex, brainstem, cerebellum, and spinal cord function or conduction pathway obstacles can lead to different types de marche dysfunction. Le internal regulation mechanism est so complicated that le academic community has not been able to determine le location and function de le human marche center.