Association of Heart rate variability measured by RR interval from ECG and pulse to pulse interval from Photoplethysmography

Malik, 1996, Heart rate variability: standards of measurement, physiological interpretation, and clinical use: Taskforce of the European society of Cardiology and the North American society for pacing and Electrophysiology, Ann Noninvasive Electrocardiol, 1, 151, 10.1111/j.1542-474X.1996.tb00275.x Laborde, 2017, Heart rate variability and cardiac vagal tone in psychophysiological research–recommendations for experiment planning, data analysis, and data reporting, Front Psychol, 8, 213, 10.3389/fpsyg.2017.00213 Li, 2009, A longitudinal study in youth of heart rate variability at rest and in response to stress, Int J Psychophysiol, 73, 212, 10.1016/j.ijpsycho.2009.03.002 Schäfer, 2013, How accurate is pulse rate variability as an estimate of heart rate variability?: a review on studies comparing photoplethysmographic technology with an electrocardiogram, Int J Cardiol, 166, 15, 10.1016/j.ijcard.2012.03.119 Kleiger, 2005, Heart rate variability: measurement and clinical utility, Ann Noninvasive Electrocardiol, 10, 88, 10.1111/j.1542-474X.2005.10101.x Munoz, 2015, Validity of (ultra-) short recordings for heart rate variability measurements, PloS One, 10, 10.1371/journal.pone.0138921 Jarrin, 2012, Measurement fidelity of heart rate variability signal processing: the devil is in the details, Int J Psychophysiol, 86, 88, 10.1016/j.ijpsycho.2012.07.004 Leikan, 2016, Evaluation of agreement between temporal series obtained from electrocardiogram and pulse wave, J Phys Conf Ser, 705 Peng, 2015, Extraction of heart rate variability from smartphone photoplethysmograms, Comput Math Methods Med, 2015, 1, 10.1155/2015/516826 Cho, 2019, Instant stress: detection of perceived mental stress through smartphone photoplethysmography and thermal imaging, JMIR Mental Health, 6, 10.2196/10140 Heathers, 2013, Smartphone-enabled pulse rate variability: an alternative methodology for the collection of heart rate variability in psychophysiological research, Int J Psychophysiol, 89, 297, 10.1016/j.ijpsycho.2013.05.017 Schäfer, 2013, How accurate is pulse rate variability as an estimate of heart rate variability?: a review on studies comparing photoplethysmographic technology with an electrocardiogram, Int J Cardiol, 166, 15, 10.1016/j.ijcard.2012.03.119 Bánhalmi, 2018, Analysis of a pulse rate variability measurement using a smartphone camera, J Healthc Eng, 10.1155/2018/4038034 Maheshkumar, 2016, Validation of PC-based sound card with biopac for digitalization of ECG recording in short-term HRV analysis, N Am J Med Sci, 8, 307, 10.4103/1947-2714.187150 Pullaganti, 2019, Association of stress with heart rate variability in different phases of the menstrual cycle, Natl J Physiol Pharm Pharmacol, 9, 256 Gil, 2010, Photoplethysmography pulse rate variability as a surrogate measurement of heart rate variability during non-stationary conditions, Physiol Meas, 31, 1271, 10.1088/0967-3334/31/9/015 Heathers, 2013, Smartphone-enabled pulse rate variability: an alternative methodology for the collection of heart rate variability in psychophysiological research, Int J Psychophysiol, 89, 297, 10.1016/j.ijpsycho.2013.05.017 Sun, 2012, Noncontact imaging photoplethysmography to effectively access pulse rate variability, J Biomed Optic, 18, 10.1117/1.JBO.18.6.061205 Hayano, 2005, Assessment of pulse rate variability by the method of pulse frequency demodulation, Biomed Eng Online, 4, 62, 10.1186/1475-925X-4-62 Constant, 1999, Pulse rate variability is not a surrogate for heart rate variability, Clin Sci, 97, 391, 10.1042/CS19990062 Wong, 2012, A comparative study of pulse rate variability and heart rate variability in healthy subjects, J Clin Monit Comput, 26, 107, 10.1007/s10877-012-9340-6 Kumar, 2018, Assessment of psychomotor skills using finger pulse guided biofeedback tool in young medical students: psychomotor skills using heart rate as biofeedback tool, Ann Med Physiol, 2, 36, 10.23921/amp.2018v2i4.21991 Ramadevi, 2019, Evaluation of static pupil size using digital web camera through image analysis, Int J Physiol, 7, 7, 10.5958/2320-608X.2019.00076.3 MaheshKumar, 2020, Comparision of photo pulse plethysmography module with Mobil-O-graph for measurement of pulse wave velocity, Clin Epidemiol Glob Health, 9, 216 Maheshkumar, 2020, Hot arm and foot bath on heart rate variability and blood pressure in healthy volunteers–needs to be verified with standard device?, J Compl Integr Med, 1