Fitness watches generate useful information, but increase patient anxiety

Is my heart beating slightly fast? Is a heart attack coming? I didn’t sleep as much as I thought I had last night—is that bad for my heart?

Health apps and fitness watches can shed considerable light on how our bodies work and make recommendations for a healthy lifestyle.

However, self-measuring can have a downside too, according to a new study that examined the experiences of 27 heart patients who used ‘Fitbit’ fitness watches to measure their sleep, heart rates and physical activity.

Although the 28-74 year-old heart patients learned more about their illnesses and were motivated to exercise during the six months that they wore the watches, they also became more anxious, explains Tariq Osman Andersen, an assistant professor at the University of Copenhagen’s Department of Computer Science and one of the researchers behind the study:

“Our study shows that, overall, self-measurements are more problematic than beneficial when it comes to the patient experience. Patients begin to use the information from their Fitbits just as they would use a doctor. However, they don’t get help interpreting their watch data. This makes them unnecessarily anxious, or they may learn something that is far from reality,” he says.

Generates insecurity and anxiousness

Along with two other researchers from the University of Copenhagen and the company Vital Beats, Tariq Osman Andersen examined patients with cardiac arrhythmia and pacemakers through 66 qualitative interviews.

They conclude that, overall, there are two points that include both the pros and cons of using Fitbit watches:

“The Fitbit watch is not designed for heart patients, so they should not necessarily follow the same recommendations for exercise as those who are in good health,” explains Tariq Osman Andersen.

Help needed for interpretation

The use of health apps like the Fitbit watch is part of a growing trend to measure the health of, among others, those with chronic illnesses. According to Tariq Osman Andersen, they offer great promise:

“There is a tremendous potential in engaging patients outside the hospital by allowing them to manage their illnesses through health apps like the Fitbit watch,” he explains.

But for health apps to have an effect, patients need help interpreting data related to sleep, heart rate and exercise habits, according to the research team behind the study:

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