Abstract
Mild cognitive impairment (MCI) is recognized as the early stage of dementia. MCI is inversely connected to cognitive functions in terms of behavior, neuroelectrics, and brain structure. Recent research indicated that exercise intervention would decrease the negative impact of MCI. The present study was designed to integrate past research about exercise and older adults with mild cognitive impairment, and the contexts provided the current development of the targeted issue, certain methodological suggestions, and possibilities for future study directions. The conclusion of the review included: 1) In terms of exercise intervention, how exercise enhances the performance of general cognitive functions and the memory aspects of executive function. We further found that aerobic exercise intervention facilitates biochemical indicators and brain activation; 2) Unlike other aspects of cognitive function, resistance exercise intervention benefits memory performance. Moreover, the intervention of Tai Chi improves the performance of general cognitive functions and executive function; 3) Regarding multiple exercise intervention and exercise combined cognitive training, all of them improve executive function and inhibit brain atrophy. While there were positive relationships between exercise intervention and improvement of mild cognitive impairment, the article’s numbers of examples that examine this issue are not enough, and this remains a partial limitation in this study's method. So, we strongly suggested that the issue still needs more studies in order to focus more effectively on the particular research outcomes.