Tight fascia affects the whole body. When connective tissue is correctly stimulated it is resupplied with fluid exchange. If the muscle tension is removed the tissue will attract more water and become less fiber bound and more elastic without losing any of its strength. The effect of NST may be homeopathic. NST is not as easily definable in manipulative therapy as it is in biochemical treatment, but the analogy is helpful.
Chiropractors choose to move misaligned hard structures back into place.
Massage therapists strive to soften what is too hard, manually move venous blood and soluble waste products and loosen adhesions between muscle fascial layers. There are other therapies that give tissues and nerve systems information that they can use to come back to balance. Feldenkrais, Alexander, Somatics, Ortho-Bionomy, to name a few. To one degree or another they all success, depending in large part on the skill and intuitiveness of the practitioner. Easing, balancing and healing are intended and attempted in one way or another.