It's no secret that as we age our range of motion and quality of movement decreases. This however does not need to occur and is in fact preventable.
The SAID principle explains that a certain exercise or type of training produces adaptations specific to the activity performed and only in the muscles (and energy systems) that are stressed by the activity. It stands for Specific Adaptations to Imposed Demands.
For example, if you want to improve at a specific skill or movement you must practice that regularly. The same goes for maintaining or increasing your range of motion. Here are a few of the mobility exercises I use to maintain joint health in the shoulder and scapula.