Anyone over 50 who is riding or otherwise working out should take the easy proactive approach to shoulder maintenance. It involves some light (under 5 pound) weights and one of those rubber band thingies (Theraband etc). Take 15 minutes three or four times a week and do the rotator cuff exercises listed in the American Institute of Orthopedic Surgeons website, called OrthoInfo. You won’t even break a sweat while doing them, say while watching the news some other show. It’ll could save you a lot of trouble later.