Quote Originally Posted by NiceGuyResearcher View Post
The squeezing sand therapeutic move has been used I'm assuming since art immitates life, in Ancient Chinese / Far East Asian cultures, and shown in a part of the training sequences in the '73 film Enter The Dragon

Also, in The Fighter about Lowell, Mass. boxer, Dickie Ecklund's brother, Mickey Ecklund.

If you've seen that film, and it's a good film, he breaks his hand and then puts his hand in sand and makes a fist as part of his rehab plan.

I think it can work on warm sand or warm rice? not sure.

I hope that also helps you
It's cool you mentioned that my girlfriend actually bought me a squeeze ball filled with sand. I broke it.