Effects of aquatic physical therapy on clinical symptoms, physical function, and quality of life in patients with fibromyalgia: A systematic review and meta-analysis.

Fibromyalgia is a chronic pain condition where exercise is considered central to management, but water-based exercise programs are sometimes favored because the buoyancy reduces joint loading while still allowing aerobic and strengthening work. This review pooled findings from 14 randomized controlled trials, covering 762 patients, comparing aquatic physical therapy against other forms of exercise or no exercise at all. Across the pooled data, aquatic therapy was associated with statistically significant improvements in pain ratings, walking distance over six minutes, overall fibromyalgia impact scores, and two quality-of-life measures (vitality and general health). The improvements were generally modest in size, and because many comparisons involved no-exercise or usual-care control groups, some of the benefit may reflect increased attention or supervised activity rather than water immersion specifically.

The authors describe this as a moderate degree of confidence given the study quality assessed, rather than a definitive proof of superiority for any single approach.

If you live with fibromyalgia, you already know how much aerobic and strengthening exercise gets recommended, and aquatic (pool-based) therapy is one option often suggested because the water supports your joints while you move. This review combined results from 14 smaller randomized studies, involving about 762 people total, to see whether aquatic therapy actually helps compared to other exercise or no exercise. The combined results showed people doing aquatic therapy reported less pain, could walk farther in a timed test, had better overall fibromyalgia impact scores, and reported better vitality and general health compared to those in other exercise or no-exercise programs.

These differences were statistically real but modest in size, not dramatic transformations. Since several studies compared aquatic therapy to doing no exercise, some of the improvement could come simply from having extra attention and structured activity, not necessarily anything special about being in water.

Overall, the findings support water-based exercise as one exercise option showing measurable benefit, though the certainty is moderate given the mix of study quality across trials.

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

For clinicians weighing which exercise modality to prioritize for people with fibromyalgia, this meta-analysis pools 14 randomized controlled trials, comprising 762 participants, comparing aquatic physical therapy against other exercise interventions or no exercise on pain, physical function, and quality of life. The pooled analysis found statistically significant between-group differences favoring aquatic therapy: a reduction on the visual analogue pain scale (mean difference -0.98, 95% CI -1.36 to -0.60), increased six-minute walk distance (mean difference 38.12 meters, 95% CI 13.65 to 62.59), lower fibromyalgia impact questionnaire scores (mean difference -7.35, 95% CI -13.05 to -1.65), and improvements in SF-36 vitality (mean difference 9.53) and general health (mean difference 10.39) subscales. These effects, while statistically significant, are of modest magnitude, and because several comparator arms were no-exercise or usual care rather than active or attention-matched controls, part of the observed benefit may reflect increased contact and supervised activity rather than a specific effect of water immersion. Risk of bias was assessed using the Cochrane tool, but the abstract does not detail per-study ratings, so the overall certainty should be considered moderate rather than high.

This synthesis informs the question of whether aquatic therapy has an evidence base distinct from other exercise forms, but it does not establish whether aquatic therapy is superior to matched land-based exercise programs delivered with similar supervision and contact time.