I think most of us experience pain in our elbows and forearms because we're keeping our hands and arms in incorrect positions for long amounts of time. If we correct our position and also do exercises to strengthen our tendons and muscles, the problem will fix itself.
I go on long trips on my motorcycle and extremely sore, painful forearms have always been my issue. I finally saw a doctor about it who told me to wear a strap on my arm while riding. The strap keeps my arm and wrist in the correct position eliminating the pressure that strains the tendons and muscles in my forearm. I haven't had any soreness since I started using it.
I've also been doing some wrist and arm exercises to strengthen my muscles and I think that has helped as well.