Survios' 'Sprint Vector' lets your run in VR without getting sick
 

Locomotion and speed are two of the hardest problems to solve in virtual reality -- get either one wrong, and players are going to get sick. That's why so many VR experiences use teleportation as their primary movement mechanic. It's a safe, slow way...

https://www.engadget.com/2017/03/02/...t-getting-sic/