They are drawings that feature human actions running. Drawings of people preparing for running, you can download the running pair dwg file and open it with autocad.
You can download the Running People Dwg file from this page and use it in your autocad projects. All users can share and download files on Arkipedia. You need to wait for a while to download the file. If the file is not free, you can support it by checking out the subscription plans.