What Is Cold Therapy and Why Athletes Swear By It
In recent years, cold therapy — also known as cryotherapy — has moved from elite sports facilities into the homes of fitness enthusiasts across the UK. But what exactly is cold therapy, and why are so many athletes swearing by it?
Let's explore the science, the benefits, and how you can harness the power of cold water immersion for recovery and performance.
Key takeaways
- Cold water immersion at 11–15°C for 10–15 minutes is the protocol most associated with reduced exercise-induced muscle soreness, according to a 2025 network meta-analysis in Frontiers in Physiology.
- A Cochrane review found "some evidence that cold-water immersion reduces delayed onset muscle soreness after exercise" compared with rest alone, defining cold water immersion generally as water below 15°C.
- One classic physiology study found that an hour of 14°C water immersion raised noradrenaline levels by 530% and dopamine by 250% versus baseline — the physiological basis for the mood and alertness effects many cold-therapy users report (Šrámek et al., European Journal of Applied Physiology).
- A dedicated ice bath with an integrated chiller holds a set temperature automatically — no bags of ice, no draining and refilling after every session.
- Our own data: ice bath customers are almost always already-serious lifters or commercial facilities — a purchase people tend to make after months of cheaper recovery habits, not as a first step into training.
What Is Cold Therapy?
Cold therapy involves exposing the body to cold temperatures for therapeutic purposes. This can include:
- Full-body cryotherapy chambers
- Ice packs for localised treatment
- Ice baths and cold plunge pools for full-body immersion
For home users, the most accessible and effective method is the cold plunge bath, which involves sitting in chilled water for a controlled period. The table below compares the three main approaches.
| Cryotherapy chamber | Ice bath / cold plunge | Ice packs | |
|---|---|---|---|
| Typical cost | Tens of thousands — rarely installed at home | From £10,000 for a chiller-equipped unit | £5–£30 |
| Best for | Elite/clinical whole-body treatment | Full-body recovery, repeatable daily use | Targeted, localised soreness or injury |
| Practical for home use? | No — needs specialist installation | Yes — plug in, set the temperature, done | Yes, but no full-body effect |
What Does the Science Say About Cold Therapy?
Cryotherapy triggers a range of physiological responses that support recovery and performance:
Reduced Inflammation
Cold exposure causes blood vessels to constrict, which is the traditional explanation for the reduced swelling associated with cold water immersion after intense training. The strongest evidence, though, is for soreness rather than inflammation markers directly — the 2025 Frontiers in Physiology network meta-analysis found 11–15°C for 10–15 minutes was the most effective protocol specifically for reducing exercise-induced muscle soreness.
Improved Circulation
Once the body begins to warm back up, blood vessels dilate, increasing blood flow and helping to flush metabolic waste from the muscles.
Muscle Recovery
A Cochrane review found "some evidence that cold-water immersion reduces delayed onset muscle soreness after exercise" compared with rest alone, though the researchers note the ideal method and dose aren't yet settled.
Mental Benefits
Cold exposure is also linked to improved mood and alertness. One classic study found an hour of 14°C water immersion raised noradrenaline by 530% and dopamine by 250% versus baseline (Šrámek et al., European Journal of Applied Physiology) — a real physiological mechanism behind the mental-clarity effect many users describe.
Why Do Athletes Use Cold Therapy?
Professional athletes, bodybuilders, and PTs across the UK use cold therapy for several key reasons:
- Faster recovery between intense training sessions
- Reduced risk of injury by managing inflammation
- Mental clarity and resilience from consistent exposure
- Improved sleep quality, which is critical for growth and repair
Even non-athletes are turning to cold therapy at home for general wellness, energy, and stress management.
How Do You Use Cold Therapy at Home?
Setting up cold therapy at home is easier than ever. At Pro Gym Essentials, we supply commercial-grade ice baths to UK homes, studios and clinics — serious recovery without the commercial clinic membership.
Step-by-Step Guide
- Set your water temperature to 10–15°C and let the chiller hold it
- Immerse up to your shoulders for 2–10 minutes (start small)
- Breathe deeply to manage the initial shock
- Dry and warm up naturally afterwards
Pro Tip: Use it post-workout, in the morning for a mental reset, or in the evening to improve sleep.
Our recommended ice bath
The Ice Bath (from £10,000) is a full-size, commercial-grade cold plunge with an integrated chiller and filtration system. You set your temperature once and it holds it — no hauling bags of ice, no guessing, no draining and refilling after every session.
It's specified for clinics, studios and serious private facilities where several people use it daily, and it works equally well as the centrepiece of a high-end home recovery space.
Ready to take your recovery to the next level? Explore our full range of cryotherapy and recovery equipment and bring elite-level performance into your own home.
Is Cold Therapy Enough on Its Own?
Cold exposure works best as part of a wider recovery routine — mobility work, soft-tissue release and sensible conditioning between hard sessions. Our recovery habits guide covers the rest.
If controlled, low-impact mobility work is the gap in your week, a reformer is the strongest thing you can add alongside cold therapy — it builds the joint control and range that keeps you training hard enough to need an ice bath in the first place.
Frequently asked questions
Is cold therapy safe for everyone? Most people can use cold therapy safely, but if you have cardiovascular conditions or circulation issues, consult your doctor first before starting.
How often should I use an ice bath? 2–3 times a week is a good starting point. Daily use is safe for most people once they've acclimatised, though more isn't automatically better — consistency matters more than frequency.
How cold should the water be? A 2025 network meta-analysis found 11–15°C for 10–15 minutes was the most effective protocol for reducing muscle soreness; the Cochrane review defines cold water immersion generally as anything below 15°C. Going much colder isn't necessarily more effective and should be approached with caution.
Does cold therapy help with fat loss? The evidence here is much weaker than for recovery or mood — treat any metabolic effect as a minor possible side benefit, not a reason to buy an ice bath instead of addressing training and nutrition.
How much does a home ice bath cost? Our own chiller-equipped unit runs from £10,000 to £15,750 depending on specification. Basic manual tubs (ice and a cool box) are far cheaper but need constant topping up and can't hold a precise temperature.
Do I need a chiller, or can I just use ice and a tub? Ice-and-tub setups work but need refilling every session and the temperature drifts as the ice melts. A chiller unit holds your chosen temperature automatically, which matters most if you're using it several times a week or sharing it across a household or facility.
Pro Gym Essentials is your trusted source for home cryotherapy gear in the UK. Whether you're training for strength or simply want to recover better, we've got you covered.
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