i do not know the name of this sport but i see some matches of this sport i watch some matches in Olympics its like a volley ball type game.
i think this is barrier jumping..in which people run very fast and jump over the hurdles with touching those hurdle....
I think it is volleyball.. But according to this picture it's like a Leg volleyball.. but It's very difficult to play like this..
it is called sepak takraw. it is usually played in south east asian countries. like volleyball but using the feet.