Nearly one in three Americans wear a wearable device, like a smartwatch, to track their health and fitness.
Studies have shown positive effects of increasing movement in ways that can be measured by these devices, especially for people who recently had a heart attack or other cardiovascular event.
But a Michigan Medicine-led report shows that adding a mobile health application to such devices yields mixed results. Tailored text messages to encourage high-risk people to move more may improve some short-term outcomes but doesn't always improve physical activity levels for everyone.
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