FlyfisherBob. I got tendonitis in my elbow from….fly fishing. Have done it nearly my whole life for trout. No problems. But when I moved to the salt water, throwing heavy lines and flies, usual into wind, and bingo. Had it for several years, and it still flares occasionally. But I was able to help it by doing the stretching exercises recommended for tennis elbow, judicious use of anti-inflamatories and I now wear one of those Air Cast braces whenever I go out fishing. Seems to help.