Aquatic therapy improves self-reported sleep quality in fibromyalgia patients: a systematic review and meta-analysis.

Researchers pulled together 22 randomized controlled trials to see whether aquatic therapy (exercise in water) could help people with fibromyalgia manage their pain, sleep, mood, and overall quality of life. What they found was modest but encouraging: people who did aquatic therapy alongside their usual care showed small improvements in sleep quality and pain compared to those on standard treatment alone. The effect on sleep didn't quite reach statistical significance, meaning there's a chance the result could be due to chance rather than the therapy itself.

Pain reduction did reach statistical significance at the short-term mark. The researchers noted that the studies they reviewed varied quite a bit in how they were designed and run, which made it harder to draw rock-solid conclusions. Still, the overall picture suggests aquatic therapy may be worth exploring as part of a broader treatment approach for fibromyalgia, though more evidence about what happens over the longer term would help.

Researchers looked at whether exercising in water might help people with fibromyalgia feel better, particularly with sleep and pain. They reviewed 22 studies and found that people who did aquatic therapy had somewhat better sleep and less pain than people who only received standard care.

The improvement in sleep was small, and it's not completely certain it wasn't just luck. The pain relief was a bit more clear-cut.

Because fibromyalgia is complex and affects everyone differently, not every person had the same response to aquatic therapy across the studies reviewed. This doesn't mean aquatic therapy will work for everyone or that it fixes fibromyalgia on its own. What it does mean is that some people found it helpful when combined with their other treatments.

Whether it might work for you is something only you and your care team can really sort out together.

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

This systematic review synthesized evidence from 22 RCTs on aquatic therapy in fibromyalgia and found trends favoring the intervention, with statistically significant pain reduction by Fibromyalgia Impact Questionnaire at short-term follow-up (WMD -5.04, p = 0.02) and a non-significant trend in sleep quality on the Pittsburgh Sleep Quality Index (WMD -1.71, p = 0.17). Both analyses showed substantial heterogeneity (I² values of 64% and 95% respectively), suggesting meaningful variation between trials in design, dosing, or population characteristics that limits the strength of pooled estimates. The evidence supports aquatic therapy as an adjunctive intervention rather than a standalone treatment, with short-term pain benefits appearing more robust than sleep effects.

The authors graded this as moderate evidence that warrants continued use in clinical practice while acknowledging the need for longer-term follow-up data and more standardized protocols. Future research should aim to identify which patient subgroups respond best and clarify optimal dosing and duration of aquatic interventions.