Fitness means different things to different people. Body fitness deals with the soft tissues ( muscles ) and internal organ functions.
A person’s tissues may look great to the eye, but if the tissues are hard and your range of motion is limited, your physical fitness is not as good as it could be. Massage can help to make the muscle tissues supple and increase the range of motion.
When you exercise, the muscles become contracted and sometimes will remain in that state of stress. Massage will help to relax the muscles and make them fit and ready to use to the full capacity without cramping.
Your internal organs are muscles also. Massage therapy can help them to be fit and function the they were intended. When this happens your body will be at the heights of fitness.