ArticleFrontiers in sports and active living2021
Assessing the Accuracy of Popular Commercial Technologies That Measure Resting Heart Rate and Heart Rate Variability.
Article in Frontiers in sports and active living, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 47 papers, 1 of them a synthesis that pooled it.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
47 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Remote monitoring technologies for measuring cardiovascular functions in community-dwelling adults: a systematic review.GeroScience · 2023Pooled it
- Reliability and inter-device agreement of multi-site heart rate variability measurements during transcutaneous auricular vagus nerve stimulation: a prospective single-arm methodological physiological study.BMC cardiovascular disorders · 2026Trial
- The Representation of Different Populations in Studies Assessing the Validity of Consumer Wearable Photoplethysmography-Based Measurements: Scoping Review.JMIR mHealth and uHealth · 2026Article
- Data-driven estimation of core body temperature during physical activity under heat exposure: A systematic review and standardized evaluation.Building and environment · 2026Review
- Vagus nerve stimulation in Crohn's disease: long-term outcomes, mechanistic insights, and the promise of non-invasive approaches.Bioelectronic medicine · 2026Article
- From Beat to Risk: How Heart Rate Variability Predicts Arrhythmias in Type 2 Diabetes.Life (Basel, Switzerland) · 2026Review
- An Adjustable Smart Ring to Monitor Pulse Rate and Peripheral Blood Oxygen Saturation.Annals of biomedical engineering · 2026Article
- Article
- Weekly Heart Rate Variability and Training Zone Analysis in U-15 Soccer Players: The Predictive Value of Combined Warm-up Protocols for Optimizing Cardiovascular Monitoring.Advanced biomedical research · 2026Article
- Advancing entropy analysis for heart rate variability: clinical insights for aging and diabetes.Frontiers in physiology · 2026Review
- Novel Virtual Reality Intervention for Stress Reduction Among Patients With or at Risk for Cardiovascular Disease: Mixed Methods Pilot Study.JMIR cardio · 2025Article
- The stressed heart: Validity evidence supporting mobile heart rate variability applications to detect psychological stress in healthcare learners.Medical education · 2025Article
- Selecting Wearable Devices to Measure Cardiovascular Functions in Community-Dwelling Adults: Application of a Practical Guide for Device Selection.Mayo Clinic proceedings. Digital health · 2025Review
- Biostrap Kairos Wristband Versus Electrocardiography for Resting Heart Rate Variability Assessment.Sensors (Basel, Switzerland) · 2025Article
- Effects of Daytime Floatation-Restricted Environmental Stimulation Therapy on Nocturnal Cardiovascular Physiology, Sleep, and Subjective Recovery in Collegiate Student-Athletes: A Comprehensive Observational Study.Journal of strength and conditioning research · 2025Observational
- Physiological outcomes from mind-body resiliency programs in healthcare workers: A scoping review.PLOS mental health · 2025Article
- Deriving Accurate Nocturnal Heart Rate, rMSSD and Frequency HRV from the Oura Ring.Sensors (Basel, Switzerland) · 2024Article
- A Bayesian analysis of heart rate variability changes over acute episodes of bipolar disorder.Npj mental health research · 2024Article
- The Effect of In-Ear and Behind-Ear Transcutaneous Auricular Vagus Nerve Stimulation on Autonomic Function: A Randomized, Single-Blind, Sham-Controlled Study.Journal of clinical medicine · 2024Article
- Digital biomarkers for non-motor symptoms in Parkinson's disease: the state of the art.NPJ digital medicine · 2024Review
Corrections and comments
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Authors and funding
11 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Commercial off-the shelf (COTS) wearable devices continue development at unprecedented rates. An unfortunate consequence of their rapid commercialization is the lack of independent, third-party accuracy verification for reported physiological metrics of interest, such as heart rate (HR) and heart rate variability (HRV). To address these shortcomings, the present study examined the accuracy of seven COTS devices in assessing resting-state HR and root mean square of successive differences (rMSSD). Five healthy young adults generated 148 total trials, each of which compared COTS devices against a validation standard, multi-lead electrocardiogram (mECG). All devices accurately reported mean HR, according to absolute percent error summary statistics, although the highest mean absolute percent error (MAPE) was observed for CameraHRV (17.26%). The next highest MAPE for HR was nearly 15% less (HRV4Training, 2.34%). When measuring rMSSD, MAPE was again the highest for CameraHRV [112.36%, concordance correlation coefficient (CCC): 0.04], while the lowest MAPEs observed were from HRV4Training (4.10%; CCC: 0.98) and OURA (6.84%; CCC: 0.91). Our findings support extant literature that exposes varying degrees of veracity among COTS devices. To thoroughly address questionable claims from manufacturers, elucidate the accuracy of data parameters, and maximize the real-world applicative value of emerging devices, future research must continually evaluate COTS devices.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.