Comparison between Electrocardiographic and Earlobe Pulse Photoplethysmographic Detection for Evaluating Heart Rate Variability in Healthy Subjects in Short- and Long-Term Recordings

Vescio, Basilio; Salsone, Maria; Gambardella, Antonio; Quattrone, Aldo

doi:10.3390/s18030844

Cited by 68 publications

(58 citation statements)

References 24 publications

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“…The sensor then sends a Bluetooth signal to the app. The set-up agrees well with ECG technology [8][9]. The three HRV recordings (two pre-adjustment and one post-adjustment) lasted 1 minute each with a 20% R-R filter to remove artifacts [7].…”

Section: Examination and Adjustmentmentioning

confidence: 97%

Improvement in Heart Rate Variability Following Spinal Adjustment: A Case Study in Statistical Methodology for a Single Office Visit

Hart¹,

Chiropractic²

2019

ijsmr

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Introduction: Statistical analysis is typically applied at the group level. The present study analyzes data during a single office visit as a novel approach providing real-time feedback to the clinician and patient regarding efficacy of an intervention. In this study, heart rate variability (HRV) was analyzed before versus after a chiropractic spinal adjustment. Methods: The patient is an adult female who signed a consent form for the study. HRV was measured twice before a chiropractic adjustment and once afterwards using app-based technology. The three HRV values (two pre and one post) were then statistically analyzed using an online calculator for outliers using Grubbs test. Results: The two pre-adjustment HRV (rMSSD) readings were consistently low: pre 1 = 16.0 milliseconds [ms] and pre 2 = 16.2 ms. The low HRV was an indicator that the patient's nervous system was not functioning optimally. The patient's atlas (C1) vertebra was palpated to be slightly out of alignment. These two findings (low HRV and vertebral misalignment) indicated the presence of a chiropractic subluxation (of the atlas vertebra). The subluxation was adjusted and within minutes the HRV increased (improved) to 27.5 ms. This improvement was calculated to be a statistically significant outlier (p < 0.05). Conclusion: This study is an example of how statistical methods can be applied to the level of an individual patient during one office visit to assess neurological effectiveness of a chiropractic adjustment. Since this is a case study, the results may not apply to all patients. Therefore, further studies in other patients, and for longer follow-up times, are reasonable next steps.

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Section: Examination and Adjustmentmentioning

confidence: 97%

Improvement in Heart Rate Variability Following Spinal Adjustment: A Case Study in Statistical Methodology for a Single Office Visit

Hart¹,

Chiropractic²

2019

ijsmr

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“…Table 2 shows the relative percentage of artifacts for time domain HRV parameters in the smartphone IoTool application to Polar V800 recordings following the suggestions of previous studies [ 15 , 29 ].…”

Section: Resultsmentioning

confidence: 99%

“…HR is defined as the number of beats per minute [ 3 ] and is a bio signal that continuously changes and can be detected using an electrocardiogram (ECG) [ 13 ]. The length of a heart rate cycle corresponds to the distance between succeeding heartbeats (inter-beat interval (IBI)), respectively the time measured between two proximate R peaks in ECG (RR interval) [ 9 , 14 , 15 ]. Due to permanent regulatory mechanisms, the HR and thus the IBI changes from heartbeat to heartbeat and is referred to as HRV.…”

Section: Introductionmentioning

confidence: 99%

“…Smart devices for measuring HRV are already used for scientific issues. In previous studies, HRV measurements using ECGs were compared with HRV measurements using smart technologies such as photoplethysmography (PPG) or Polar HRV transmitters coupled with smartphone applications [ 15 , 19 , 21 , 25 , 28 , 29 , 30 ]. Most of the literature relates to measurements on humans, but there are also some studies that have collected data from animals (primarily dogs and cats) [ 31 , 32 ].…”

Section: Introductionmentioning

confidence: 99%

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Recording Heart Rate Variability of Dairy Cows to the Cloud—Why Smartphones Provide Smart Solutions

Wierig

Mandtler

Rottmann

et al. 2018

Sensors

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In the last decades, there has been an increasing interest in animal protection and welfare issues. Heart rate variability (HRV) measurement with portable heart rate monitors on cows has established itself as a suitable method for assessing physiological states. However, more forward-looking technologies, already successfully applied to evaluate HRV data, are pushing the market. This study examines the validity and usability of collecting HRV data by exchanging the Polar watch V800 as a receiving unit of the data compared to a custom smartphone application on cows. Therefore, both receivers tap one signal sent by the Polar H7 transmitter simultaneously. Furthermore, there is a lack of suitable methods for the preparation and calculation of HRV parameters, especially for livestock. A method is presented for calculating more robust time domain HRV parameters via median formation. The comparisons of the respective simultaneous recordings were conducted after artifact correction for time domain HRV parameters. High correlations (r = 0.82–0.98) for cows as well as for control data set in human being (r = 0.98–0.99) were found. The utilization of smart devices and the robust method to determine time domain HRV parameters may be suitable to generate valid HRV data on cows in field-based settings.

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“…Autonomic control of heart rate (HR) was obtained in all participants by HRV analysis (Vanderlei, Pastre, Hoshi, Carvalho, & Godoy, ). R‐R intervals were taken from pulse‐to‐pulse intervals processed by a miniaturized, custom‐made, battery‐operated device based on photoplethysmography (PPG) that may be suitable for short‐ and long‐term home measuring and monitoring of HRV parameters as previously described (Vescio, Salsone, Gambardella, & Quattrone, ). Pulses were generated from PPG signal taken from the ear‐lobe of each subject, over a 24‐hr acquisition period.…”

Section: Methodsmentioning

confidence: 99%

Usefulness of cardiac parasympathetic index in CPAP‐treated patients with obstructive sleep apnea: A preliminary study

Salsone

Marelli

Vescio³

et al. 2019

Journal of Sleep Research

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Cardiac autonomic indexes, including cardiac parasympathetic index and cardiac sympathetic index, have been reported to accurately identify patients with sleep disorders such as obstructive sleep apnea. Our study aimed to assess cardiac autonomic indexes in patients with obstructive sleep apnea before and during a single full‐night continuous positive airway pressure therapy using a combined approach. Our simultaneous heart rate variability‐polysomnographic study included 16 never‐treated obstructive sleep apnea patients. Two patients dropped out. Patients underwent combined recordings in two consecutive days, at baseline and during a single full‐night of acute continuous positive airway pressure treatment. We calculated cardiac parasympathetic index and cardiac sympathetic index as night/day ratio for high‐frequency and low‐frequency heart rate variability spectral components, respectively. Continuous positive airway pressure treatment significantly reduced cardiac autonomic indexes values in comparison with baseline values (cardiac parasympathetic index: p < .0001; cardiac sympathetic index: p = .001). After acute continuous positive airway pressure treatment, the percentage of decrease of cardiac parasympathetic index was greater than that of cardiac sympathetic index (51.02 ± 15.72 versus 34.64 ± 26.93). A positive statistical correlation was also found between decrease of cardiac parasympathetic index and decrease of apnea–hypopnea index after continuous positive airway pressure (p < .001). This study improves the knowledge on cardiac autonomic modulation during acute continuous positive airway pressure therapy in obstructive sleep apnea. Our results demonstrate that both autonomic indexes decreased significantly after a single‐night of acute continuous positive airway pressure therapy. Cardiac parasympathetic index more than cardiac sympathetic index was related to decrease of apnea–hypopnea index after continuous positive airway pressure therapy, thus representing a potential help in everyday clinical practice.

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Comparison between Electrocardiographic and Earlobe Pulse Photoplethysmographic Detection for Evaluating Heart Rate Variability in Healthy Subjects in Short- and Long-Term Recordings

Cited by 68 publications

References 24 publications

Improvement in Heart Rate Variability Following Spinal Adjustment: A Case Study in Statistical Methodology for a Single Office Visit

Improvement in Heart Rate Variability Following Spinal Adjustment: A Case Study in Statistical Methodology for a Single Office Visit

Recording Heart Rate Variability of Dairy Cows to the Cloud—Why Smartphones Provide Smart Solutions

Usefulness of cardiac parasympathetic index in CPAP‐treated patients with obstructive sleep apnea: A preliminary study

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