Hot-tub therapy tested as potential treatment for peripheral artery disease
pharmafile | October 26, 2026 | News story | | Cardiology, PAD, Pain, cardiology
Researchers at Manchester Metropolitan University are investigating whether regular hot-water immersion can improve mobility and relieve pain in people with peripheral artery disease (PAD), with funding from the British Heart Foundation.
The HEATPAD study aims to recruit 70 people with PAD to take part in hot-tub sessions three times a week for eight weeks, immersed up to their shoulders in water at 40°C for around 40 minutes.
PAD occurs when arteries, usually those supplying the legs, narrow because of fatty deposits, restricting blood flow and causing pain during walking. Exercise is commonly recommended, but symptoms can make physical activity difficult.
The researchers hope heat therapy could increase blood flow to the legs and improve walking distance and quality of life. They will measure participants’ walking ability, pain and other symptoms before and after the programme, alongside changes in everyday activities and wellbeing.
One participant, Ken Heywood, reported being able to tackle a steep hill in his local park after taking part.
Professor Amy Harwood, who leads the project, said: “If a hot tub or bath can provide similar benefits to exercise, then that could be much more pleasurable for people.” She added that the team hoped to find evidence that heat therapy could relieve PAD pain and improve quality of life.
The researchers will also monitor blood pressure and dizziness, as prolonged immersion in hot water can lower blood pressure. People with PAD considering changing their bathing routine are advised to consult their GP.
The study will assess whether regular heat therapy offers measurable benefits, but its effectiveness for PAD has yet to be established.
Pic: Aanna Auza
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