Highlights:
- Less pain, better movement. After just 10 vibroacoustic therapy sessions, most participants reported reduced knee pain and improved mobility.
- Swelling went down for most patients. Over 90% of participants showed a measurable reduction in knee swelling, suggesting improved joint comfort.
- Everyday activities became easier. Faster sit-to-stand and walking performance indicated gains in functional independence.
- A practical, non-invasive option. Vibroacoustic therapy was easy to apply in an outpatient setting, making it a promising supportive approach for knee osteoarthritis care.
Knee osteoarthritis (also called gonarthrosis) can make everyday activities difficult — walking, standing up, or climbing stairs may become painful and stiff. A preliminary study by Skopowska et al. (2014) explored whether vibroacoustic therapy (VAT) — sound vibrations applied to the body — could help improve comfort and movement in people with knee osteoarthritis.
What the study did
44 adults (over age 44) completed 10 sessions of VAT. Each session lasted 15 minutes, with sound vibrations applied to the skin around the knee using a pre-programmed protocol.
Before and after the treatment program, researchers measured:
- Pain (Visual Analog Scale)
- Knee swelling (joint circumference)
- Mobility (Timed Up and Go test)
- Walking speed (6-meter walk)
- Knee movement (flexion test)
What improved after the sessions
Most participants showed positive changes:
- Pain improved in 77% of patients (average reduction: 1.9 points on the pain scale)
- Swelling decreased in 91%, based on reduced knee circumference
- Mobility improved in 96%, with faster Timed Up and Go performance
- Knee movement improved in 82%, with more flexions achieved
- Walking test improved in 91%, but this change was not statistically significant
Figure 1. Functional Improvements After Vibroacoustic Therapy in Knee Osteoarthritis. Bars represent the percentage of patients who showed improvement after 10 vibroacoustic therapy sessions. Pain relief reflects a mean reduction of 1.9 points on the Visual Analog Scale (VAS). Improvements in swelling, mobility (Timed Up and Go), and knee function (squat test) indicate functional gains observed in the majority of participants.
What the authors concluded
The authors interpreted these early results as encouraging and suggested that vibroacoustic therapy may support pain relief, reduced swelling, and improved function in people with knee osteoarthritis — especially in outpatient settings where treatments need to be practical and easy to deliver. They also emphasized that larger studies are needed to confirm these effects.
Reference: Agnieszka Skopowska, Biernacki M, Dekowska M, Piotr Ożóg, Grochowska A. The influence of vibroacoustic therapy on the functional status of patients with gonarthrosis. A preliminary report. Rheumatology / Reumatologia. 2014; 1;5(5):292–8. doi: 10.5114/reum.2014.46665
Link to full paper: Read here