Cold-water immersion aids biochemical and soreness recovery but temporarily blunts explosive power

A systematic review and meta-analysis pooled 30 randomized controlled trials to compare how immersing different portions of the body in cold water after exercise affects several markers of muscle recovery. Researchers found that cold-water immersion reduced a blood marker of muscle damage and perceived soreness, but did not improve maximal strength and briefly suppressed explosive leg power immediately after the session.

What the study found

The meta-analysis found that cold-water immersion was associated with meaningfully lower circulating creatine kinase levels — a biochemical indicator of muscle stress — compared with seated passive rest, with a small-to-moderate effect size. Perceived muscle soreness (DOMS) was also reduced. Both outcomes suggest a real, if modest, benefit for the biochemical and subjective dimensions of post-exercise recovery.

By contrast, maximal voluntary isometric contraction force — a direct measure of muscle strength — was not significantly improved by cold-water immersion relative to rest. More notably, explosive power as measured by countermovement jump height was transiently suppressed immediately after partial-body immersion, pointing to a short-term performance cost that practitioners may need to weigh.

A central question the review addressed was whether submerging the whole body produces different outcomes than immersing only part of it. Subgroup analyses across all follow-up windows from zero to 72 hours found no statistically significant difference between the two approaches on any outcome, leading the authors to characterize partial immersion as an equally effective and potentially safer option for recovery purposes.

Limits worth knowing

The review drew exclusively on trials comparing cold-water immersion against passive seated rest, so comparisons with other active recovery strategies are not addressed. The 30 included studies varied in participant characteristics, exercise protocols, water temperatures, and immersion durations, introducing heterogeneity that the authors acknowledged. Most trials enrolled healthy, recreationally or competitively active adults, limiting generalizability to other populations. Funding sources for individual included trials were not uniformly disclosed in the abstract, and the review itself was registered prospectively on PROSPERO, which supports transparency but does not eliminate publication bias in the underlying literature.

About this entry. The Heartwood Review summarizes published, peer-reviewed research in its own words and links to the original source. It is not medical advice; consult a physician before beginning or changing any thermal or recovery practice. Findings summarized here describe the study cited, not any product sold by Teak & Marble Atelier. Corrections.