A new study from Mount Sinai researchers published in the peer-reviewed “Journal of Medical Internet Research” found that wearable hardware, and specifically the Apple Watch, can effectively predict a positive COVID-19 diagnosis up to a week before current PCR-based nasal swab tests.
The investigation dubbed the “Warrior Watch Study,” used a dedicated Apple Watch and iPhone app and included participants from Mount Sinai staff. It required participants to use the app for health data monitoring and collection, and also asked that they fill out a day survey to provide direct feedback about their potential COVID-19 symptoms and other factors, including stress.
During the course of the study, the research team enlisted “several hundred healthcare workers” to participate, and collected data over several months, between April and September. The primary biometric signal that the study’s authors were watching was heart rate variability (HRV), which is a key indicator of strain on a person’s nervous system. This information was combined with information around reported symptoms associated with COVID-19, including fever, aches, dry cough, gastrointestinal issues, and loss of taste and smell, among others.
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