According to this triple-blinded, well-designed study - it seems that the answer is yes.
(this is why I, as a massage therapist who treats people in pain, offer painscience resources and recommend movement therapy)
Note that in this study:
- They expected to find certain changes in the grey matter, in the brain itself...and did not. Admitting this indicates that the data is reliable, and does not suffer from confirmation bias.
- The fact that these changes were not found is interesting.