Why the study?
Physical activity has a bidirectional relationship with cardiovascular disease, and wearable- or smartphone-based measurements could serve as clinically useful digital biomarkers.
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Design
Review
Activity tracking via wearables may yield CVD biomarkers; leaves open clinical utility pending validation.
Low physical activity 1 and slow walking pace 2 have a two-way relationship with cardiovascular disease (CVD).Low physical activity increases future risk of CVD, while when CVD develops it often impairs activity.This means that wearable or smartphone-based measurement of physical activity may provide clinically useful "digital biomarkers".Clinicians predict future risk, diagnose disease, and recommend appropriate treatment, and for any biomarker to be used in healthcare, its measurement must influence these decisions to improve patient outcomes.Here we consider how this may be achieved.
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Chico et al. (2023) studied this question.
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