The shoulder joint can move in more directions than any other joint in the body — an asset, to be sure, but that level of mobility also makes it vulnerable to injury. Depending on the nature of your work and home activities, it’s easy to develop strength and flexibility imbalances in your shoulders. Plus, some people naturally have more or less flexibility in their joints.
So the first thing to do is to find out what you’re dealing with, specifically — are all of the muscles surrounding your shoulder joints weak, or just a few? Are they also tight, or too loose? For best results, work with a certified fitness professional to make sure your shoulders have the right amount of mobility and stability; after this is established through an initial fitness evaluation and some pre-conditioning as needed, you’ll be ready to move on to shoulder-specific strength training.
Keep in mind that you can target a specific body area with strength training, but the stability and mobility of each joint affects the well-being of the body as a whole. If you’re not already doing strength and flexibility exercises for all major muscle groups, make that a priority for your fitness plan.