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Measuring Heart Rate Variability in Free-Living Conditions Using Consumer-Grade Photoplethysmography: Validation Study

Measuring Heart Rate Variability in Free-Living Conditions Using Consumer-Grade Photoplethysmography: Validation Study

Morelli et al [28] conducted a study evaluating the accuracy of a consumer-grade PPG (Microsoft Band 2) for HRV estimation during less restrictive, but controlled, conditions (eg, sitting and walking) over 10-min trials.

Emily Lam, Shahrose Aratia, Julian Wang, James Tung

JMIR Biomed Eng 2020;5(1):e17355


Relationship Between Chronic Stress and Heart Rate Over Time Modulated by Gender in a Cohort of Office Workers: Cross-Sectional Study Using Wearable Technologies

Relationship Between Chronic Stress and Heart Rate Over Time Modulated by Gender in a Cohort of Office Workers: Cross-Sectional Study Using Wearable Technologies

Morelli et al [21] described this circadian rhythm in HR as four harmonics with periods of 24, 12, 8, and 6 hours. Their accurate approximation of the resting HR using these four harmonics makes this modeling suitable for mapping long-term effects on HR.

Alex Wilhelmus Jacobus van Kraaij, Giuseppina Schiavone, Erika Lutin, Stephan Claes, Chris Van Hoof

J Med Internet Res 2020;22(9):e18253


Appropriation of Mobile Health for Diabetes Self-Management: Lessons From Two Qualitative Studies

Appropriation of Mobile Health for Diabetes Self-Management: Lessons From Two Qualitative Studies

and not to expand doctor-patient communication.Moreover, 1 restriction observed in the use of mediated communication for social connectedness and exchange, both mobile and static, was that information on the internet was not always considered trustworthy (Daniela

Constanze Rossmann, Claudia Riesmeyer, Nicola Brew-Sam, Veronika Karnowski, Sven Joeckel, Arul Chib, Rich Ling

JMIR Diabetes 2019;4(1):e10271