My name is Dong Yuqi, and I'm a sophomore in the Sports Biomechanics Team of Shandong Sport University. I got a good academic record at school, won a national scholarship, published an SCI review article as a co-author, and actively participated in various meetings to report and communicate my latest research results. My main research content now is the influence of aging on biomechanics and brain activation during walking in older adults. I look forward to to learning more new knowledge and communicating with teachers and new friends through this course.