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Wearable Devices to Diagnose and Monitor the Progression of COVID-19 Through Heart Rate Variability Measurement: Systematic Review and Meta-Analysis

Wearable Devices to Diagnose and Monitor the Progression of COVID-19 Through Heart Rate Variability Measurement: Systematic Review and Meta-Analysis

Lifestyle factors It has been observed that cigarette smoking has a negative effect on autonomic function with reduced HRV [11,12], whereas low doses of alcohol intake in nondependent users (1 standard drink in women and 2 in men daily) are linked to increased HRV and greater alcohol intake is linked to decreased HRV [13].

Carlos Alberto Sanches, Graziella Alves Silva, Andre Felipe Henriques Librantz, Luciana Maria Malosa Sampaio, Peterson Adriano Belan

J Med Internet Res 2023;25:e47112

When Heart Beats Differently in Depression: Review of Nonlinear Heart Rate Variability Measures

When Heart Beats Differently in Depression: Review of Nonlinear Heart Rate Variability Measures

Heart rate variability (HRV) is regulated by the ANS, and its disturbance is a marker of CVD. The relation between HRV and depression has been well understood [7,12-15]. We registered at least 14 reviews that meta-analytically compared conventional methods of analysis of this relation [16-28].

Milena Čukić, Danka Savić, Julia Sidorova

JMIR Ment Health 2023;10:e40342

Alignment Between Heart Rate Variability From Fitness Trackers and Perceived Stress: Perspectives From a Large-Scale In Situ Longitudinal Study of Information Workers

Alignment Between Heart Rate Variability From Fitness Trackers and Perceived Stress: Perspectives From a Large-Scale In Situ Longitudinal Study of Information Workers

Specifically, we aimed to understand the extent to which HRV predicts perceived stress in naturalistic settings. Furthermore, given that HRV is a measure of arousal, we also examined the extent to which HRV is specific to stress beyond other high-arousal affective states, including anxiety, negative affect, and positive affect.

Gonzalo J Martinez, Ted Grover, Stephen M Mattingly, Gloria Mark, Sidney D’Mello, Talayeh Aledavood, Fatema Akbar, Pablo Robles-Granda, Aaron Striegel

JMIR Hum Factors 2022;9(3):e33754

Continuous mHealth Patch Monitoring for the Algorithm-Based Detection of Atrial Fibrillation: Feasibility and Diagnostic Accuracy Study

Continuous mHealth Patch Monitoring for the Algorithm-Based Detection of Atrial Fibrillation: Feasibility and Diagnostic Accuracy Study

The exclusion criteria were as follows: (1) estimated stay in the hospital A single-lead ECG-based HRV device (Firstbeat Bodyguard 2, Firstbeat Technologies) was applied to the patient’s chest with 2 adhesive patches as shown in Figure 1. The Firstbeat Bodyguard 2 device records ECG data, from which it stores beat-to-beat R-R intervals (time elapsed between two successive R-waves) to allow an HRV assessment. The target time for HRV measurement was 24 hours.

Onni E Santala, Jukka A Lipponen, Helena Jäntti, Tuomas T Rissanen, Mika P Tarvainen, Tomi P Laitinen, Tiina M Laitinen, Maaret Castrén, Eemu-Samuli Väliaho, Olli A Rantula, Noora S Naukkarinen, Juha E K Hartikainen, Jari Halonen, Tero J Martikainen

JMIR Cardio 2022;6(1):e31230

Physician Stress During Electronic Health Record Inbox Work: In Situ Measurement With Wearable Sensors

Physician Stress During Electronic Health Record Inbox Work: In Situ Measurement With Wearable Sensors

Advances in wearable sensors and algorithms that filter and analyze their data enable objective, continuous unobtrusive sensing of physiological measures directly associated with stress, such as heart rate variability (HRV). HRV is the variation in time between one heartbeat and the next. When relaxing and recovering, HRV increases, and it decreases during stress [30-32].

Fatema Akbar, Gloria Mark, Stephanie Prausnitz, E Margaret Warton, Jeffrey A East, Mark F Moeller, Mary E Reed, Tracy A Lieu

JMIR Med Inform 2021;9(4):e24014