do these stretches
https://www.youtube.com/watch?v=wC8mk...
and these stretches
https://www.youtube.com/watch?v=3iDEA...
part 1 some examples of the result of training like this
https://www.youtube.com/watch?v=iqrba...
part 2 tips and stretches
https://www.youtube.com/watch?v=SwCDo...
part 3 how to avoid scraping the floor.
https://www.youtube.com/watch?v=cd7hL...
