Effects
- Short-term reduction in reported pain after massage, compared with no treatment
- Smaller short-term benefits compared with sham or other active treatments
- Pleasant touch competing with pain signals, so pain feels less intense during and just after massage
- Benefits for pain generally fade within weeks rather than lasting long term
Pain is produced by the nervous system
Pain is not a direct readout of tissue damage. Sensors in the tissues send signals up the spinal cord, and the brain decides how much of a threat they represent, taking into account context, mood, past experience and expectations. That is why the same sensation can hurt more when you are stressed and less when you feel safe. The unit Apply principles of pain neuroscience covers these principles of pain neuroscience.
The pain gate
In 1965, Melzack and Wall proposed the gate control theory. In simple terms:
- Signals from touch and pressure travel on large, fast nerve fibres.
- Pain signals travel on smaller, slower fibres.
- Both meet in the spinal cord, where touch input can “close the gate” and reduce how much pain signal passes up to the brain.
- The brain can also send signals down to open or close the gate.
This is why rubbing a bumped elbow helps. Researchers now agree the original wiring diagram is not correct in detail, but its main idea still holds: pain is modulated in the spinal cord and by the brain, and touch is one input that can turn it down.
How this relates to massage
A current model of manual therapy suggests the mechanical input starts a chain of nervous-system responses, both in the spinal cord and in the brain (including relaxation, expectation and the therapeutic relationship), that together produce the pain relief. This is more likely than the idea that massage physically “fixes” tissues.
What the reviews show:
- Compared with no treatment, massage reduces reported pain in the short term.
- Compared with sham or other active treatments, benefits are small.
- Effects mostly fade over weeks. Confidence in the findings is low because trials are small and hard to blind.
Practical points
- Slow, comfortable pressure that the client can relax into is more useful than pressure they have to brace against (see Pressure scale and check-ins).
- Avoid threatening language like “your back is out” or “this is really damaged.” Reassuring language helps the nervous system settle.
- Describe massage as something that can help people feel better and move more comfortably for a while, not as a cure for a painful condition.
Related: Relaxation and the parasympathetic response, Psychological effects of massage.