Water training cut fall risk as well as land training did

When knees or a back rule out loading the legs on land, the pool gets offered as the alternative. What this meta-analysis established is that the alternative holds up as a substitute where fall risk is concerned — neither balance nor strength separated it significantly from land-based training.

The search covered Embase, Cochrane, PubMed and Scopus through August 2025. Inclusion required clinical trials in older people comparing aquatic training with a control or land-based training group and measuring at least one of gait ability, balance or muscle strength. Thirty-one studies with 1,702 participants made the cut, risk of bias was assessed with TESTEX, the exercise-specific quality tool, and a random effects model was used throughout.

How much improved?

Against control groups both outcomes showed large effect sizes. Balance came in at 1.16 (95% CI 0.72–1.59, p<.001) and muscle strength at 1.14 (95% CI 0.76–1.53, p<.001). The configurations producing large effect sizes in balance were aerobic training and combined training.

How does it compare with land training?

This is the part that actually changes a decision. Aquatic training did not differ significantly from land-based training overall. Beating a control group and beating land training are different claims, and the answer here lands closer to "does not win, does not lose".

Which shifts the selection criterion from efficacy to adherence. For someone who cannot finish a land programme because of joint pain or fear of falling, the option they will actually keep doing becomes the better one, because the expected outcome is comparable either way.

What moderated the size of the effect?

Three moderators separated out.

• Weekly training frequency moderated the effect on balance — the authors recommend at least twice per week and suggest more sessions may further optimise balance gains.
• Training progression also moderated balance effects — progressing to higher intensities appeared beneficial for both balance and muscle strength.
• Participants' mean age moderated the effect on strength — the strength result varied with the age of the population studied.

What water does not give you

Buoyancy is the method's advantage and precisely its limit. The same principle that unloads compression from the joints also removes the mechanical loading that bone responds to. This meta-analysis measured balance, strength and gait, not bone density — and reducing falls is a separate matter from whether bone holds up when a fall happens. The loading conditions bone actually needs are covered in strength training and bone density.

Logging needs the same separation. Aquatic training barely moves a Muscle Index score, because the score comes from Big 3 1RMs and there is no way to measure that load in water. Treat pool sessions not as a replacement for score-building training but as a bridge across the period when land loading is off the table — balance and strength hold, and the barbell is still there when the joint recovers.