As harsh as it seems, they train about 16 hours a day. Being a sports star in China basically translates into who's body can take the most abuse and not fall apart. This is also why their bodies are pretty much trashed by age 20
An Aerial is a gymnastic trick that is a cartwheel without putting your hands on the ground. As with any gymnastic tricks, it will become easier with practice.
saina nehwal practice for 8 hours in day
3 hours
Pianists normally practice about 8~9 hours everyday.
They practice probably anywhere from 4 to 6 hours a day.
18 hours.
a lot of hours
zero hours
27 hours"
10 hours
10000 hours of practice
16 hours