Effects of diaphragmatic and iliopsoas myofascial release in patients with chronic low back pain: A randomized controlled study.

Chronic low back pain often involves more than just the lumbar muscles themselves, and this trial looked at whether releasing tension in the diaphragm and iliopsoas muscle, both connected to the trunk and hip region, could add something beyond standard physiotherapy. Forty-two adults with chronic low back pain were randomly assigned to receive either real myofascial release techniques or a placebo version of the same techniques, alongside their usual physiotherapy care. The group receiving the actual myofascial release reported less pain, moved through a greater range of motion in the lower back, showed better flexibility, and had improved chest wall movement compared to the placebo group. These are encouraging directional results for a manual therapy technique that has been studied mostly in isolation before.

However, this was a small trial of just 42 people, and the abstract does not describe blinding of assessors or longer-term follow-up, so it is not yet clear how durable these changes are or how they would translate to broader clinical settings.

If you deal with ongoing low back pain, you might wonder whether treatments that target areas beyond the lower back itself, like the diaphragm or the hip flexor muscle called the iliopsoas, could make a difference. This study tested that idea by comparing a real myofascial release technique, a type of hands-on therapy that works on connective tissue, against a placebo version, with both groups also receiving standard physiotherapy. People who received the real technique reported less pain, had more movement in their lower back, showed better flexibility, and had improved chest wall movement compared to those who got the placebo treatment.

This suggests the technique may add something useful on top of regular physiotherapy for chronic low back pain. That said, this was a small study with only 42 participants, so the findings are an early signal rather than settled evidence. It's not yet known how long these improvements last or how they would hold up in larger groups of people, so it's too soon to treat this as a proven addition to standard care.

This is a summary of research, not medical advice. Talk to your own healthcare provider about anything affecting your care.

The clinical question here is whether adding diaphragmatic and iliopsoas myofascial release to standard physiotherapy provides measurable benefit over placebo myofascial release in chronic low back pain, an approach not previously tested with both structures combined. In this randomised controlled trial of 42 participants (21 per group), the treatment group showed statistically significant between-group improvements across multiple primary outcomes: pain reduction at rest, during trunk flexion, and during trunk extension; increased lumbar range of motion in flexion, extension, and right lateral flexion; improved flexibility measures; and increased chest wall mobility at both xiphoid and subcostal regions, with confidence intervals reported for each. This contributes early evidence that myofascial techniques targeting the diaphragm and iliopsoas, structures with fascial and functional connections to the lumbar spine, may offer adjunctive benefit beyond standard care alone.

The consistency across multiple related outcomes, pain, mobility, and flexibility, strengthens the internal coherence of the findings, though these should still be read as complementary to physiotherapy rather than a standalone intervention. The main limitation for practice is the small sample size of a single trial, which restricts confidence in the magnitude and generalisability of these effects. The abstract does not report blinding of outcome assessors, long-term follow-up, or adverse event monitoring, so questions about durability and safety over time remain unanswered.