Traditional cold therapy is simple and accessible, but it can also be imprecise. An ice pack cools a relatively broad area, and its temperature changes throughout treatment. An ice bath goes further, exposing far more of the body than may actually need cooling. Increasingly, practitioners are looking at ways to apply cold more selectively, for shorter periods and with greater control over where it is directed.

That is where localised cryotherapy enters the conversation. Rather than cooling the whole body, a handheld system can focus cold treatment on a defined area. The appeal isn't that cold has suddenly become a new idea; it is that a familiar treatment principle can be delivered in a more targeted and repeatable way.

For physiotherapists, sports therapists and recovery specialists, that opens up practical possibilities. Practitioners can incorporate targeted cold into an existing treatment session rather than making it a separate event, or use it alongside other techniques, based on their judgement and the individual client's needs.

TruCryo's Kaasen system is one example of this changing approach. Designed and manufactured in the UK, it uses liquid CO2 delivered through a range of nozzles to provide controlled localised cooling in a portable format. The interesting development, however, is bigger than any single product. Cold therapy is becoming less about simply making something cold and more about deciding exactly where, when and how that cooling should be applied.

The ice pack is unlikely to disappear. But for practitioners wanting greater control, it may no longer be the end of the story.

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