Two articles on PainSci cite Grieve 2013: 1. The Complete Guide to Trigger Points & Myofascial Pain 2. Trigger Points on Trial
PainSci commentary on Grieve 2013: ?This page is one of thousands in the PainScience.com bibliography. It is not a general article: it is focused on a single scientific paper, and it may provide only just enough context for the summary to make sense. Links to other papers and more general information are provided wherever possible.
Can trigger point therapy help immediately to improve a restricted ankle joint? The answer is a highly qualified yes: “This study identified an immediate significant improvement in ankle range of motion after a single intervention of trigger point pressure release on latent soleus trigger points. These findings are clinically relevant, although the treatment effect on ankle ROM is smaller than a clinically significant ROM (5°).”
Statistically but not clinically significant means “the increase was real but small.” In many cases, the effect on ankle ROM was so small that it probably made no noticeable difference to the patient. But Rob Grieve, the author, pointed out in an email to me that “some of the individual scores post intervention were considerably higher than 5˚,” which patients probably did notice. The real story, though, is that any positive result from such a quick, simple treatment is noteworthy and promising. If an isolated trigger point treatment makes a difference in the extensibility, that certainly bodes well for more thorough treatment.
See my trigger points tutorial for a detailed analysis.
~ Paul Ingraham
original abstract †Abstracts here may not perfectly match originals, for a variety of technical and practical reasons. Some abstacts are truncated for my purposes here, if they are particularly long-winded and unhelpful. I occasionally add clarifying notes. And I make some minor corrections.
OBJECTIVES: To investigate the immediate effect on restricted active ankle joint dorsiflexion range of motion (ROM), after a single intervention of myofascial trigger point (MTrP) therapy on latent triceps surae MTrPs in recreational runners.
DESIGN: A crossover randomised controlled trial.
PARTICIPANTS: Twenty-two recreational runners (11 men and 11 women; mean age 24.57; ±8.7 years) with a restricted active ankle joint dorsiflexion and presence of latent MTrPs.
INTERVENTION: Participants were screened for a restriction in active ankle dorsiflexion in either knee flexion (soleus) or knee extension (gastrocnemius) and the presence of latent MTrPs. Participants were randomly allocated a week apart to both the intervention (combined pressure release and 10 s passive stretch) and the control condition.
RESULTS: A clinically meaningful (large effect size) and statistically significant increase in ankle ROM in the intervention compared to the control group was achieved, for the soleus (p = 0.004) and the gastrocnemius (p = 0.026).
CONCLUSION: Apart from the statistical significance (p < 0.05), these results are clinically relevant due to the immediate increase in ankle dorsiflexion. These results must be viewed in caution due to the carry-over effect in the RCT crossover design and the combined MTrP therapy approach.
This page is part of the PainScience BIBLIOGRAPHY, which contains plain language summaries of thousands of scientific papers & others sources. It’s like a highly specialized blog. A few highlights:
- Exercise and education versus saline injections for knee osteoarthritis: a randomised controlled equivalence trial. Bandak 2022 Ann Rheum Dis.
- Association of Lumbar MRI Findings with Current and Future Back Pain in a Population-based Cohort Study. Kasch 2022 Spine (Phila Pa 1976).
- A double-blinded randomised controlled study of the value of sequential intravenous and oral magnesium therapy in patients with chronic low back pain with a neuropathic component. Yousef 2013 Anaesthesia.
- Is Neck Posture Subgroup in Late Adolescence a Risk Factor for Persistent Neck Pain in Young Adults? A Prospective Study. Richards 2021 Phys Ther.
- Sudden amnesia resulting in pain relief: the relationship between memory and pain. Choi 2007 Pain.