Exercise for Osteoarthritis: New Study Questions Effectiveness
Exercise may offer minimal, short-lived relief for osteoarthritis symptoms.
Top Summary
- What happened: A new review questions the effectiveness of exercise therapy as a primary treatment for osteoarthritis.
- Why it matters: Challenges the widespread recommendation of exercise as the first line of defense against osteoarthritis pain and impaired physical function.
- What changes for people: Patients and doctors should engage in shared decision-making regarding osteoarthritis treatment options, considering alternatives to exercise alone.
- Who is affected: Individuals living with osteoarthritis, particularly of the knee, hip, and hand, and healthcare professionals treating them.
Rethinking Exercise for Osteoarthritis
A comprehensive review published in RMD Open suggests that exercise therapy's effectiveness in alleviating osteoarthritis symptoms is likely minimal and short-lived.
The analysis questions the prevailing belief that exercise should be universally promoted as the initial treatment for this degenerative joint disease.
Researchers are calling for a reevaluation of research priorities in light of these findings.
Examining the Evidence
The study, an umbrella systematic review and pooled data analysis, scrutinized existing evidence comparing exercise to other treatments.
This included placebo, usual care, no treatment, drugs, other therapies, and even surgery.
The researchers aimed to fill a gap in knowledge, as a comprehensive overview of exercise's effectiveness compared to various approaches was lacking.
Study Details and Findings
The review encompassed 5 systematic reviews with 8631 participants, and 28 randomized clinical trials with 4360 participants.
These trials focused on knee/hip (23), hand (3), and ankle (2) osteoarthritis.
Pooled statistical analysis revealed that exercise had only small, short-term effects on knee osteoarthritis pain compared to placebo or no treatment.
Limited and Short-lived Benefits
The certainty of the evidence for knee osteoarthritis was deemed very low, with effects diminishing in larger or longer-term trials.
Evidence for hip osteoarthritis showed negligible effects, while hand osteoarthritis showed small effects.
Outcomes were comparable to patient education, manual therapy, painkillers, steroid or hyaluronic acid injections, and arthroscopy.
Comparing to Other Interventions
Single trials showed exercise to be less effective than knee bone remodeling surgery (osteotomy) and joint replacement in the long run.
The review acknowledges limitations, including prioritizing certain reviews and variations in symptom severity among participants.
Some trials also allowed other interventions alongside exercise, which could have impacted the results.
Recommendations for Treatment
"We found largely inconclusive evidence on exercise for osteoarthritis, suggesting negligible or, at best, short-lasting small effects on pain and function across different types of osteoarthritis compared with placebo or no treatment."
The researchers emphasize that their findings question the blanket recommendation of exercise therapy as the primary treatment for all osteoarthritis patients.
However, they acknowledge exercise's other health benefits and that some patients may still prefer it.
Shared Decision-Making is Key
"Clinicians and patients should engage in shared decision-making, weighing the worthwhileness of exercise effects on pain and function alongside secondary health benefits, safety, low-cost profile, care stage, and alternative treatment options,"
This collaborative approach ensures that treatment plans are tailored to individual needs and preferences.
What to Watch Next
Future research should focus on identifying which subgroups of osteoarthritis patients benefit most from exercise, and exploring combined treatment approaches that may yield better outcomes. Additionally, longer-term studies are needed to evaluate the durability of exercise's effects compared to other interventions.