Breathing against resistance may ease knee arthritis pain

NCT ID NCT07698418

Not yet recruiting Symptom relief Sponsor: The Hong Kong Polytechnic University Source: ClinicalTrials.gov ↗

First seen Jul 13, 2026 · Last updated Jul 17, 2026 · Updated 3 times

Summary

This study tests whether a simple breathing exercise—inhaling against resistance using a handheld device—can reduce knee pain in people aged 55 and older with knee osteoarthritis. Participants will do the exercises at home for 8 weeks, with gradually increasing resistance. The trial will measure pain, physical function, inflammation markers, and nervous system activity. If it works, this drug-free approach could offer a safe, low-cost option for managing chronic knee pain.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

Active substance: inspiratory muscle training (breathing exercises against resistance)
What this could lead to: If effective, this simple, non-drug breathing exercise could offer a safe, low-cost way to manage knee pain and reduce reliance on painkillers or surgery.
What could go wrong: This is a small, early-stage trial with 80 participants. The sham group may also show improvement, and the benefits may not last beyond the training period.

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Conditions

The condition(s) this trial relates to.

Chronic Pain osteoarthritis, knee

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

KNEE OSTEOARTHRITIS KNEE OSTEOARTHRITIS (KNEE OA)

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