将一篇科技论文的摘要翻译成中文。


以下是一篇科技论文的英文摘要: "The present study aimed to investigate the effect of physical exercise on cognitive performance in older adults with mild cognitive impairment. A total of 50 older adults were randomly assigned to an intervention group or a control group. The intervention group received a physical exercise intervention, while the control group received no intervention. Results showed that the intervention group exhibited improvements in cognitive performance compared to the control group."（摘自Frontiers in Aging Neuroscience）
本研究旨在探讨体育锻炼对轻度认知障碍老年人认知表现的影响。共有50名老年人被随机分配至干预组或对照组。干预组接受了体育锻炼干预，而对照组没有接受干预。结果表明，干预组在认知表现上显示了比对照组更好的改善。