Qin, J., R. Li, L. Huang, R. Yan, S. Tian, and T. Dong. “Research Progress on the Relationship Between Gait Speed and Physical Fitness in the Elderly: Mini-Oral Presentation A3.6”. The Health & Fitness Journal of Canada, vol. 14, no. 3, Sept. 2021, doi:10.14288/hfjc.v14i3.447.