Random post for anyone who has dealt with or is dealing with tendonitis, specifically "tennis elbow".  I've been struggling with it for several months now and have started using Theraband's Flexbar to good result.  Just passing it along, I am not a paid sponsor/endorser.  I got the green one and it's enough resistance to get some quality work done.  Also seems like it's a good tool for building forearm and hand strength in general.  My .02.