A translated article says Shibuno played on the high school baseball team with the boys during her junior year...after that, she dropped softball and baseball and focused on golf only. She learned to hit left-handed to "protect" her golf swing.
The link below has a collection of videos of various Japanese players...including at least five with Shibuno. Two of them say TV PREMIUM, so I assume you have to be a member of this site for those, but you can play the other three. I'm guessing they were recorded in 2018.
Cryotherapy is meant to relieve muscle soreness and improve recovery IF USED CORRECTLY. There was a case recently where an NFL player suffered 2nd degree frostbite on his feet because he forgot to wear the proper footwear for a session.