Well the word parkour represents (parmade for yard) and (kourwhile running).Parkour is very good for your muscles and very cool but also extremly dangerous,and if you are planing on making (performing) parkour first you learn yourself jumping on small walls then on big ones and first jump from small ones and the from big ones if you want a new trick like a back flip you have to go to a open jym first and when you start getting the hang of it you can do on hard walls.And also I make parkour myself and I have a team,and I recomend you having one,because if you hit yourself they will help you and because they teach you things you don't know.But also I recomend you picking people that have a good sense of hunor because it's not that interesting to not talk with them. thank you for reading!please write what you are thinking about parkour!