Cold-Water Immersion
Ten to fifteen minutes in 10–15 °C water: the range Machado 2015 (meta-analysis) reports giving the largest effects on immediate and delayed soreness. Poręba 2025 (systematic review) reports that regular cold-water immersion in hypertrophy-focused resistance training may reduce muscle growth and type II fiber adaptations, so this is a situational tool rather than a default after every session.
The evidence applies to the practice, not to these particular steps — they are one way to carry it out.
- 1Cold-Water Immersion10–15 minCold-water immersion at 10–15 °C.Slot: thermal and contrast modalitiesDescribed in the findingMeets the finding's dose
No option on this bench from any review
No completed Round-2 review has named a practice for thermal and contrast modalities that an extraction row placed in it. That is a gap in the knowledge base, not in this step: the step’s own exercise stands, and there is nothing yet to swap it for.
Safety, and where each line comes from2 reported by the review's sources4 product safeguard (app-authored)
Each line below says where it comes from. “Reported by the review’s sources” is the source’s own words about adverse events or contraindications. “Product safeguard” is written by this app, not by the research. “Source silent” means the studies behind this routine report nothing on that point, which is not the same as saying it carries no risk.
[…] marks our own earlier grade or verdict wording, removed from the quotation.Who should modify or avoid this
- Reported by the review's sourcesTrained adults after unusually hard or congested training.SR17.1 · “multiple […] sources warn that regular CWI in hypertrophy-focused resistance training may reduce muscle growth and adaptive signaling (Poręba 2025; Brankowska 2026), a strongly supported adaptation-interference signal that reframes CWI as situational rather than default.”
- Product safeguard (app-authored)Never immerse alone.From this routine’s block record, written by this app.
Hazards and adverse events
- Reported by the review's sourcesDelayed muscle relaxation, increased risk of muscle damageSR17.1 · canon row 3783, adverse events field · CRYOTHERAPY AND ACTIVE RECOVERY ON POST-MATCH PHYSIOLOGICAL VARIABLES ON FOOTBALL PLAYER: A SYSTEMATIC REVIEW · studied: - Type: Cryotherapy and Active Recovery - How: Cryotherapy involves exposure to frigid temperatures; Active Recovery involves low-intensity exercises - Where: Implied to be in a sports or athletic context - When: Post-match…
When to seek supervision or clearance
- Product safeguard (app-authored)Cardiovascular, vascular or clotting conditions: see a clinician before useFrom this routine’s block record, written by this app.
- Product safeguard (app-authored)Numbness, skin discolouration or pain during immersion: stop and seek adviceFrom this routine’s block record, written by this app.
- Product safeguard (app-authored)Signs of a medical emergency (chest pain or pressure, trouble breathing, fainting, sudden weakness or numbness) mean 911 or your local emergency services; thoughts of self-harm or suicide mean the 988 Suicide & Crisis Lifeline. This app does not diagnose, treat or give personalised medical advice.
How to do it
Machado 2015 (meta-analysis) reports cold-water immersion more effective than passive recovery for immediate and delayed soreness, with 10–15 °C water and 10–15 minute immersions giving the largest effects. The 10–15 minute range is what that review observed; it does not pin down a minimum that still works. Patel 2025 (systematic review of randomized controlled trials) reports that neuromuscular performance effects were mixed, and Poręba 2025 (systematic review) reports that regular cold-water immersion in hypertrophy-focused resistance training may reduce muscle growth and type II fiber adaptations, which makes it situational rather than a default.
- Water at 10–15 °C, for 10–15 minutes.
- Never immerse alone.
What the evidence says
This practice is one way to carry out what the sources on the concept entry (phys.recovery.recovery-and-adaptation-tradeoff) studied: cold-water immersion after exercise, for soreness, muscle-damage markers, performance and adaptation. Machado 2015 (meta-analysis) reports cold-water immersion more effective than passive recovery for immediate and delayed soreness, with 10 to 15 °C water and 10 to 15 minutes of immersion giving the largest effects; Zhu 2026 (meta-analysis) reports lower creatine kinase and soreness with no benefit for jump height or maximal strength; Patel 2025 (systematic review) reports consistent reductions in soreness and muscle-damage markers within 24 to 48 hours, with mixed effects on neuromuscular performance; Poręba 2025 (systematic review) reports that regular use in hypertrophy-focused resistance training may reduce muscle growth and type II fibre adaptations. The full account, source by source, is on the concept entry this practice links to (phys.recovery.recovery-and-adaptation-tradeoff).
- Agreement
- Direction recorded for 0 of 12 sources; not yet recorded for the rest.
- The claim's outcome
- Outcome not yet recorded
- Certainty
- No source states a certainty rating.
- Authors
- Sources share authors: Yang Zhu (first author of 2 sources).
- How the sources were read
- Some sources are based on abstracts, not full texts.
What each source measured and concluded (12)
- What it measured
- Effectiveness of post-exercise recovery strategies
- How it was read
- based on the abstract, not the full text
- What it measured
- Heart rate, blood lactate concentration, perceived muscle soreness.
- How it measured it
- Physiological measurements (objective).
- Its conclusion, in its own words
- “Active recovery performs better than cryotherapy for HR and BLL modification and muscle soreness evaluation effects.”
- How it was read
- read in full text
- What it measured
- Comparison of cold-water immersion (CWI) vs body cryotherapy (BC) on DOMS and jump performance
- How it was read
- screened only, not extracted
- What the review says it includes
- Systematic review and meta-analysis (RCTs)
- Studies and participants, as stated
- 13 RCTs, 214 participants
- What it measured
- Neuromuscular function (CMJ, MVC), muscle damage (CK), subjective fatigue/soreness, sprint
- How it was read
- screened only, not extracted
- What the review says it includes
- Network meta-analysis of RCTs (PRISMA-NMA, Bayesian)
- Studies and participants, as stated
- 23 RCTs, 388 participants, 17 interventions
- What it measured
- Recovery of athletic performance, perceptual outcomes, and creatine kinase (CWI vs other recovery modalities)
- How it was read
- screened only, not extracted
- What the review says it includes
- Systematic review, meta-analysis, and meta-regression
- Studies and participants, as stated
- 28 studies
- What it measured
- Muscle soreness management with cold water immersion vs passive recovery (by water temperature and immersion time)
- How it was read
- screened only, not extracted
- What the review says it includes
- Systematic review and meta-analysis of RCTs
- Studies and participants, as stated
- 9 studies
- What it measured
- Post-exercise muscle damage recovery (CK, DOMS, CMJ, MVIC)
- How it was read
- screened only, not extracted
- What the review says it includes
- Systematic review and meta-analysis of RCTs
- Studies and participants, as stated
- 30 RCTs
- What it measured
- Post-exercise maximal strength (MVIC), explosive power (CMJ), muscle damage markers, subjective pain
- How it was read
- screened only, not extracted
- What the review says it includes
- Systematic review and meta-analysis of RCTs
- Studies and participants, as stated
- 22 RCTs
- What it measured
- Immediate recovery (DOMS, performance restoration) vs long-term muscular adaptations (hypertrophy, power)
- How it was read
- screened only, not extracted
- What it measured
- Soreness, perceived recovery, neuromuscular performance, anabolic signaling, and long-term training adaptations
- How it was read
- screened only, not extracted
- What it measured
- Physiological, performance, and perceptual recovery outcomes
- How it was read
- screened only, not extracted
- What the review says it includes
- Systematic review of randomized controlled trials (PRISMA, PROSPERO)
- Studies and participants, as stated
- 12 RCTs
- What it measured
- Effectiveness of recovery strategies after training/competition vs placebo or control
- How it was read
- screened only, not extracted
- What the review says it includes
- Umbrella review (of systematic reviews and meta-analyses)
- Studies and participants, as stated
- 22 reviews covering 63 studies with 1100 endurance athletes