Evidence map›Paper›PMID 35808182›Full record

ArticleSensors (Basel, Switzerland)2022

Measuring Heart Rate Variability Using Facial Video.

Gerardo H Martinez-Delgado, Alfredo J Correa-Balan, José A May-Chan, Carlos E Parra-Elizondo, Luis A Guzman-Rangel, Antonio Martinez-Torteya

Abstract read
In one paragraph

Article in Sensors (Basel, Switzerland), 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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.

2 · The registry

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.

3 · Its place in the literature

Who cites it

7 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Review
  6. Robust Heart Rate Variability Measurement from Facial Videos.Bioengineering (Basel, Switzerland) · 2023
    Article
  7. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors.

Gerardo H Martinez-DelgadoPrograma de Ingeniería Mecatrónica, Universidad de Monterrey, San Pedro Garza García 66238, Mexico.
Alfredo J Correa-BalanPrograma de Ingeniería Mecatrónica, Universidad de Monterrey, San Pedro Garza García 66238, Mexico.
José A May-ChanPrograma de Ingeniería Mecatrónica, Universidad de Monterrey, San Pedro Garza García 66238, Mexico.
Carlos E Parra-ElizondoPrograma de Ingeniería Mecatrónica, Universidad de Monterrey, San Pedro Garza García 66238, Mexico.ORCID 0000-0002-2437-5216
Luis A Guzman-RangelPrograma de Maestría en Ingeniería del Producto, Universidad de Monterrey, San Pedro Garza García 66238, Mexico.
Antonio Martinez-TorteyaEscuela de Ingeniería y Tecnologías, Universidad de Monterrey, San Pedro Garza García 66238, Mexico.ORCID 0000-0002-7637-4637

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Heart Rate Variability (HRV) has become an important risk assessment tool when diagnosing illnesses related to heart health. HRV is typically measured with an electrocardiogram; however, there are multiple studies that use Photoplethysmography (PPG) instead. Measuring HRV with video is beneficial as a non-invasive, hands-free alternative and represents a more accessible approach. We developed a methodology to extract HRV from video based on face detection algorithms and color augmentation. We applied this methodology to 45 samples. Signals obtained from PPG and video recorded an average mean error of less than 1 bpm when measuring the heart rate of all subjects. Furthermore, utilizing PPG and video, we computed 61 variables related to HRV. We compared each of them with three correlation metrics (i.e., Kendall, Pearson, and Spearman), adjusting them for multiple comparisons with the Benjamini-Hochberg method to control the false discovery rate and to retrieve the q-value when considering statistical significance lower than 0.5. Using these methods, we found significant correlations for 38 variables (e.g., Heart Rate, 0.991; Mean NN Interval, 0.990; and NN Interval Count, 0.955) using time-domain, frequency-domain, and non-linear methods.

Indexed as

ElectrocardiographyPhotoplethysmographyAlgorithmsHandHeart RateHumansface imagingheart rate measurementHeart Rate Variability (HRV)non-contactPhotoplethysmography (PPG)

Identifiers

PMID35808182
PMCPMC9269597

What OpenQuestion holds

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Registered trials

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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.