Jersey has launched a world's first trial aimed at improving the lives of people living with heart failure.
Ten people are taking part initially, with the trial essentially seeing if injecting iron into a vein helps boost physical activity.
Some of them have received iron, and others have got a placebo, and they've not been told which, so doctors can best see its effectiveness.
They're wearing a ring and a patch on their leg, so staff can monitor things like their heart rate and how long they stand and walk for.
Dr Aaron Henry, from the cardiology department at Jersey's General Hospital and Research Fellow at the University of Oxford, told Channel 103:
"Historically in cardiology, we've assessed exercise tolerance by doing something called a six-minute walking test, so we literally get participants to walk for six minutes and see how they far they walk, before treatment and 12 weeks after treatment.
"That is obviously a single snapshot in time and is open to things like whether they've had a coffee in the morning, whether it's too hot, too cold, how they slept the night before.
"What we're doing in this trial is harnessing digital technology to monitor patients' physical activity for the duration of the trial, so not just six minutes before and after, but 24 hours a day for 12 weeks.
"The data is transmitted via an app on a smart device and it comes to us and the team. As a team, we don't look at the data until after because were blinded, but we could look at the data in real-time if we want to."
The patients will then be reassessed after the 12-week period.
Around 100 to 150 people will take part in the trial over the next two to three years, with people recruited to the trial on a monthly basis.
Digital Jersey has invested £240,000 to run the trial as part of a government-backed accelerator fund for tech-driven health and care initiatives.
Mr Henry added:
"Jersey is in a really unique place where we can run a trial like this.
"Not only are we asking a really important clinical question and we can do that because of the healthcare structure and the enthusiasm of the staff and patients, but we can also change how we do cardiology trials in the future by using digital technology and Jersey is the perfect sandbox for that."
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