Answer: Some people can bend themselves into a pretzel, while others can barely get up after sitting for a while. How about you? Flexibility, or limberness, refers to how freely your joints move and the length in muscles that cross those joints. Regular massage can, and will, help most people improve and retain their normal flexibility. You’ll feel better because you can move better.How flexible you are depends on factors, some of which are in your control, some that aren’t. Here are five factors that affect your flexibility: Joint structure. There are several different types of joints in the human body. Some have a greater range of motion (ROM) than others. The ball and socket joint in your shoulder, for example, has the greatest range of motion of all joints.