#1
Has anyone here ever used a powerball to prevent or treat guitar-related injuries such as RSI and carpal tunnel? Or do any of you guys use it to warm up? I have one lying around and I wanna know if it's a good idea to use it!
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Dean Custom 450
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Big Muff Rams head
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#2
I'm at music college, and a guy in my class has developed tendonitis, so his doctor actually reccommended using it to warm up

Don't know if that helps....

Lewis