Reliability of Finger Photoplethysmogram Assessment: Effect of Mental Stress and Day-to-Day Variability

Fukuie, Marina; Tarumi, Takashi; Yamabe, Takayuki; Sugawara, Jun

doi:10.2991/artres.k.210208.001

Cited by 2 publications

(3 citation statements)

References 16 publications

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“…The B/A index is found to be an essential factor in the study of arterial stiffness [11]. Our data clearly showed a significant and positively correlated relationship between the B/A ratio and two adiposity indices, i.e.…”

Section: Discussionsupporting

confidence: 64%

Correlation of the Second Derivative of Digital Pulse Wave (DPW) with Central Obesity in Women

Byatee¹,

Yasiri²,

Gailani³

2022

PJMHS

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Background: Obesity, as measured by body mass index (BMI) or measures of central obesity, including waist-to-hip ratio (WHR) and waist circumference, is related to higher total and cardiovascular mortality. Four systolic waves (a, b, c, and d) and one diastolic wave (e) make up the second derivative of the digital pulse wave (SDPTG), which is obtained by two mathematical differentiation of the original PTG. Objective: To find out whether the (SDDPW) is correlated with central obesity in women. Methods: 55 healthy female subjects with Body Mass Index (31.5±7.3) were included in the current study. A fingertip pulse wave transducer was used to record digital pulse waves. For automatic detection and measurement of A, B, C, D, and E waves and amplitude of the second derivative digital pulse wave, Lab Chart Pro version 7.2 was used. Height and weight were measured. Waist and hip circumference were measured. Brachial systolic and diastolic blood pressures (SBP & DBP) were measured. Results: The results showed that B/A ratio is positively and significantly affected by central obesity in terms of waist circumference (r = 0.3, P<0.037), and waist/height ratio (r = 0.31, P<0.031). Conclusion: B/A ratio is positively and significantly affected by central obesity. Keywords: Digital pulse wave (DPW), Central obesity, women

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Section: Discussionsupporting

confidence: 64%

Correlation of the Second Derivative of Digital Pulse Wave (DPW) with Central Obesity in Women

Byatee¹,

Yasiri²,

Gailani³

2022

PJMHS

View full text Add to dashboard Cite

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“…In addition, the variables that increased their values were "physical stress" and "score stress", and those that decreased, "ANS" and "Stress resistance", were the expected ones. The validity of the use of digital plethysmography to assess stress has been prev ously verified by other authors [34]; thus, we consider its use to be acceptable. As e pected, after performing a ST, an increase in heart rate is evident in both sexes, since th time elapsed between the end of the test and the measurement of PRV was insufficient make a full recovery.…”

Section: Discussionmentioning

confidence: 54%

“…The validity of the use of digital plethysmography to assess stress has been previously verified by other authors [ 34 ]; thus, we consider its use to be acceptable. As expected, after performing a ST, an increase in heart rate is evident in both sexes, since the time elapsed between the end of the test and the measurement of PRV was insufficient to make a full recovery.…”

Section: Discussionmentioning

confidence: 64%

Influences of Intense Physical Effort on the Activity of the Autonomous Nervous System and Stress, as Measured with Photoplethysmography

González-Moro

Cámara

Ruiz

2022

IJERPH

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Background: The autonomic nervous system, which is composed of the sympathetic and parasympathetic nervous system, is closely related to the cardiovascular system. The temporal variation between each of the intervals between the consecutive “R” waves of an electrocardiogram is known as heart rate variability. Depending on the type of activity, both systems can be activated, and also influence the interval between “R” waves. Currently, with advancements in technology and electronic devices, photoplethysmography is used. Photoplethysmography detects changes in the intensity of reflected light that allow differentiation between systole and diastole and, therefore, determines the heart rate, its frequency and its variations. In this way, changes in the autonomic nervous system can be detected by devices such as the Max Pulse®. Objective: To determine whether the information provided by Max Pulse® on autonomic balance and stress is modified after intense physical exercise, thereby determining whether there is a relationship with body composition, and also whether there are differences with respect to gender. Materials and Methods: Fifty-three runners (38.9% female) with a mean age of 31.3 ± 8.1 years participated in the study. Two measurements (before and after intense physical effort) were performed with the Max Pulse® device. The flotoplethysmography measurement lasted 3 min, and was performed in the supine position. The exercise test was performed on a treadmill. It was initiated at a speed of 6 and 7 km/h for women and men, respectively. Subjects indicated the end of the test by making a hand gesture when unable to continue the test. Results: Autonomic nervous system activity and mental stress values decreased significantly (p < 0.05) in men and women, while autonomic nervous system balance decreased only in women. Physical stress increased (p < 0.05) in both sexes. Conclusions: Intense exercise causes changes in variables that assess autonomic nervous system balance and stress, as measured by a device based on photoplethysmography. The changes are evident in both sexes, and are not related to body composition.

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Reliability of Finger Photoplethysmogram Assessment: Effect of Mental Stress and Day-to-Day Variability

Cited by 2 publications

References 16 publications

Correlation of the Second Derivative of Digital Pulse Wave (DPW) with Central Obesity in Women

Correlation of the Second Derivative of Digital Pulse Wave (DPW) with Central Obesity in Women

Influences of Intense Physical Effort on the Activity of the Autonomous Nervous System and Stress, as Measured with Photoplethysmography

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