CAJ | 학술논문

步态是一个复杂的运动任务，由大脑的不同区域共同控制。流行病学研究表明老年人步态与认知功能之间有密切关系。老年人步态障碍增加了患有认知功能障碍的风险，与正常健康的老年人相比，患有认知功能障碍的老年人更易表现为步态障碍且更易跌倒。认知和步态可能发生在大脑的同一个区域，两者可能存在双向关系，更好的整体步态与更好的整体认知功能具有一定的相关性。近年来国外许多研究表明步速和跨步时间变化（STV）是认知功能障碍的预测因素，国内相关的研究仍甚少。本文将步速和STV与认知功能障碍研究进展予以综述，旨在提高临床医师的意识，根据老年人的步态进行神经心理学测试，更早地发现认知功能障碍。
보태시일개복잡적운동임무，유대뇌적불동구역공동공제。류행병학연구표명노년인보태여인지공능지간유밀절관계。노년인보태장애증가료환유인지공능장애적풍험，여정상건강적노년인상비，환유인지공능장애적노년인경역표현위보태장애차경역질도。인지화보태가능발생재대뇌적동일개구역，량자가능존재쌍향관계，경호적정체보태여경호적정체인지공능구유일정적상관성。근년래국외허다연구표명보속화과보시간변화（STV）시인지공능장애적예측인소，국내상관적연구잉심소。본문장보속화STV여인지공능장애연구진전여이종술，지재제고림상의사적의식，근거노년인적보태진행신경심이학측시，경조지발현인지공능장애。
Gait is a complicated motor task controlled by different areas of the brain. Epidemiological studies show that gait is closely associated with cognitive function in the elderly. Older adults with gait impairment are of higher risk for developing cognitive impairments. Compared with normal healthy old people, those with cognitive impairment show more preference to have gait impairments, and are more prone to falling. Cognition and gait, which may have a mutual relationship, may occur in the same area of the brain. So, better overall gait is related to better overall cognitive function. In recent years, many abroad researches demonstrated that stride speed and stride-to-stride variability of stride time (STV) are predictors of cognitive impairment. However, there are few such researches in China. This article reviewed the new progress in the studies concerning walking speed and STV with cognitive impairment, and aimed at raising awareness of clinicians on this subject. We need to conduct neuropsychological tests based on the elderly gait in order to detect cognitive impairment as early as possible.