Ambulatory measurement of respiratory sinus arrhythmia and respiration rate

Geus, Eco J. C. de; Willemsen, Gonneke; Klaver, Coert H.A.M.; Doornen, Lorenz J.P. van

doi:10.1016/0301-0511(95)05137-6

Cited by 255 publications

(244 citation statements)

References 53 publications

Supporting

Mentioning

229

Contrasting

Unclassified

Order By: Relevance

“…HR was measured by the Vrije Universiteit Ambulatory Monitoring System (VU-AMS) continuously from the time series of R wave to R wave intervals derived by a three-lead ECG. Reliability and validity of the VU-AMS have been described previously [18,19]. Continuous HR was recorded during a session with four different conditions, always applied in ®xed order: lying, sitting, standing and walking.…”

Section: Methodsmentioning

confidence: 99%

“…The ecological validity of the intermittent HR from the ABP recordings was further examined in an ambulatory experiment. During three different days, 109 male white-collar workers wore the ABP monitor, together with a device that continuously records HR from the ECG [18,19]. Continuous ECG-derived HR (ECG-HR) was averaged over periods of time with ®xed posture and physical activity.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Ambulatory heart rate is underestimated when measured by an ambulatory blood pressure device

Vrijkotte

Geus

2001

Journal of Hypertension

View full text Add to dashboard Cite

Objective To test the validity of ambulatory heart rate (HR) assessment with a cuff ambulatory blood pressure (ABP) monitor.Design Cross-instrument comparison of HR measured intermittently by a cuff ABP monitor (SpaceLabs, Redmond, Washington, USA), with HR derived from continuous electrocardiogram (ECG) recordings (1) in a controlled laboratory experiment and (2) during long-term recording in a true naturalistic setting.Participants Six normotensive subjects participated in the laboratory study. A total of 109 male white-collar workers underwent ambulatory monitoring, of which 30 were mildly hypertensive.Methods Four different laboratory conditions (postures: lying, sitting, standing, walking), repeated twice, were used to assess the short-term effects of cuff in¯ation on the HR. To test the actual ambulatory validity, participants simultaneously wore a continuous HR recorder and the ABP monitor from early morning to late evening on 2 workdays and one non-workday. Diary and vertical accelerometery information was used to obtain periods of ®xed posture and (physical) activity across which HR from both devices was compared.Results. Laboratory results showed that the ABP device reliably detected HR during blood pressure measurement, but that this HR was systematically lower than the HR directly before and after the blood pressure measurement. The ambulatory study con®rmed this systematic underestimation of the ongoing HR, but additionally showed that its amount increased when subjects went from sitting to standing to light physical activity (2.9; 4.3 and 9.1 bpm (beats/min), respectively). In spite of this activity-dependent underestimation of HR, the correlation of continuous ECG and intermittent ABP-derived HR was high (median r 0.81). Also, underestimation was not different for normotensives and mild hypertensives.Conclusions A direct effect of cuff in¯ation leads to the underestimation of ongoing HR during cuff-based ABP measurement. Additional underestimation of HR occurs during periods with physical activity, probably due to behavioural freezing during blood pressure measurements. HR underestimation was not affected by hypertensive state. When its limitations are taken into account, ABP-derived ambulatory HR can be considered a reliable and valid measure.

show abstract

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Ambulatory heart rate is underestimated when measured by an ambulatory blood pressure device

Vrijkotte

Geus

2001

Journal of Hypertension

View full text Add to dashboard Cite

show abstract

“…The following three points were automatically scored and marked on the average dZ/dt waveform, (1) B-point or upstroke, (2) dZ/dt (min) , and (3) X-point or insicura. From these points, the pre ejection period (PEP) was obtained, which is defined as the time between the onset of ventricular depolarization (Q wave onset) and the onset of left ventricular ejection of blood in the aorta (B-point) (De Geus, Willemsen, Klaver, & Van Doornen, 1995). Because of the limited reliability of B-point detection, due to ambiguity in the location of the B-point, each dZ/dt waveform was checked and corrected or deleted when automated scoring revealed B-points that were morphologically inconsistent (Riese et al, 2003).…”

Section: Physiological Measuresmentioning

confidence: 99%

“…DOI 10.1002/dev FIGURE 1 Episodes of the separation-reunion procedure including separation (sep) and reunion (reun) with parent (P) and stranger (S). (Grossman, Van Beek, & Wientjes, 1990) which combined the respiratory time series and the inter beat intervals (IBI) to calculate the shortest inter beat interval during heart rate acceleration in the inspiration phase, and the longest inter beat interval during deceleration in the expiration phase (De Geus et al, 1995). RSA was defined as the difference between the longest and the shortest IBI.…”

Section: Physiological Measuresmentioning

confidence: 99%

Physiological effects of separation and reunion in relation to attachment and temperament in young children

Oosterman

Schuengel

2007

Developmental Psychobiology

View full text Add to dashboard Cite

This study examined physiological effects of separation and reunion in a sample 3-to 6-year-old children. Using continuous ambulatory recording, changes in heart rate (HR), respiratory sinus arrhythmia (RSA), and pre-ejection period (PEP) were compared across the episodes of a separation-reunion procedure based on the strange situation. RSA decreased significantly over the course of the procedure as well as on separation from the parent and not the stranger, supporting that separation from the attachment figure elicited vagal withdrawal in young children. The absence of significant PEP effects suggest that the separation-reunion procedure, and more specifically separation from the parent, was not threatening enough to activate the sympathetic nervous system, even if children were insecure attached and inhibited with regard to strangers. Some of the variability in HR increases to reunion was explained by younger age. The findings highlight the role of the ANS as a regulatory process in the parent-child relationship. ß 2007 Wiley Periodicals, Inc. Dev Psychobiol 49: 119-128, 2007.

show abstract

“…Peripheral psychophysiological activity was assessed with the validated Vrije Universiteit Ambulatory Monitoring System (VU-AMS, Vrije Universiteit, Department of Psychophysiology, Amsterdam, Netherlands) Model 5 FS by recording electrocardiography and impedance cardiography with a sample rate of 1000 Hz (De Geus & van Doornen, 1996; De Geus, Willemsen, Klaver, & van Doornen, 1995; Riese et al, 2003; Willemsen, De Geus, Klaver, van Doornen, & Carroll, 1996). The VU-AMS calculated interbeat intervals (IBIs) to assess the heart period between adjacent R-R signals.…”

Section: Methodsmentioning

confidence: 99%

The enemy in the mirror: self-perception-induced stress results in dissociation of psychological and physiological responses in patients with dissociative disorder

Schäflein

Sattel

Schmidt

et al. 2018

European Journal of Psychotraumatology

View full text Add to dashboard Cite

Background: Patients suffering from dissociative disorders (DD) are characterized by an avoidance of aversive stimuli. Clinical experience has shown that DD patients typically avoid the confrontation with their own faces in a mirror (CFM). Objective: To investigate potential CFM-associated self-reported and psychophysiological stress reactions of DD patients, which most likely inform on the still unknown pathophysiology of dysfunctional self-perception in DD. Method: Eighteen DD patients and 18 healthy controls (HCs) underwent CFM. They were assessed for CFM-induced subjective self-reported stress, acute dissociative symptoms and sympathetic and parasympathetic drive using impedance cardiography. Results: DD patients experienced more subjective stress and acute dissociation than HCs upon CFM. Their psychological stress response did not activate the sympathetic and parasympathetic nervous system. Conclusions: In DD patients, CFM constitutes serious self-reported stress and is associated with a blunted autonomic reactivity. Therapeutic approaches promoting self-perception and self-compassion, in particular by using CFM, might serve as goal-oriented diagnostic and therapeutic tools in DD.

show abstract

Ambulatory measurement of respiratory sinus arrhythmia and respiration rate

Cited by 255 publications

References 53 publications

Ambulatory heart rate is underestimated when measured by an ambulatory blood pressure device

Ambulatory heart rate is underestimated when measured by an ambulatory blood pressure device

Physiological effects of separation and reunion in relation to attachment and temperament in young children

The enemy in the mirror: self-perception-induced stress results in dissociation of psychological and physiological responses in patients with dissociative disorder

Contact Info

Product

Resources

About