What it is
Mechanism evidence: human
At a glance
What it is, why people use it, the evidence, and what to know before trying it.
Why people use it
- Short-term reduction in post-exercise soreness
- Alertness
- Recovery between training sessions
Evidence at a glance
Cold-water immersion can modestly reduce perceived muscle soreness after strenuous exercise. That does not establish broad longevity or recovery benefits, and frequent use immediately after resistance training may work against muscle growth and strength adaptation.
Confidence: moderate
Practice safety
Situations where this practice may need modification or professional guidance.
Cold water can trigger gasping, hyperventilation, blood-pressure and heart-rate changes, loss of coordination and hypothermia. Open-water use adds drowning risk; avoid solo exposure and use extra caution with cardiovascular disease, Raynaud phenomenon or impaired sensation.
- Unstable cardiovascular disease
- Cold urticaria
- Unsupervised open-water exposure
- Impaired temperature sensation
- Cold shock
- Numbness
- Dizziness
- Hypothermia
Forms and variants
This review does not automatically apply to:
- cryotherapy chamber assumed equivalent to cold-water immersion
- ice applied to one injured area
- contrast therapy as a single intervention