I know what it looks like but how does it help the muscle tissue and how do you use one?
Great article on foam rolling, explanations, how to do it, various motions that should be used.
Same concept as foam rolling taken a step more direct with a tennis ball
I use both techniques and really feel like it has helped me overall in just how I feel as well as flexibility and recovery.
Not to mention breaking down scar tissue seems to always be a good thing