The reliability of psychophysiological examinations under field conditions: Results of repetitive mental stress testing in middle-aged men

Langewitz, Wolf; Rüddel, Heinz; Noack, H; Wachtarz, K.

doi:10.1093/oxfordjournals.eurheartj.a059543

Cited by 16 publications

(6 citation statements)

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“…The participants' current affective state could be an explanation for situational influences, as negative affective states may reduce high frequency HRV (Filaire, Protier, Massart, Ramat, & Teixeira, ; Schulz, Alpers, & Hofmann, ). Several researchers reported that participants may habituate to experimental settings (e.g., Langewitz, Rüddel, Noack, & Wachtarz, ), which could be interpreted as systematic influence. Furthermore, the menstrual cycle phase could be another systematic interindividual influence, which may have substantial impact on HRV (Bai, Li, Zhou, & Li, ; Leicht, Hirning, & Allen, ; Sato, Miyake, Akatsu, & Kumashiro, ) but was not controlled in the present study.…”

Section: Discussionmentioning

confidence: 99%

“…Moreover, we did not observe any difference in the respiratory activity between the three measurement occasions in each condition (0.25 Hz), except for lower mean respiratory activity during the very first session (0.24 Hz). This difference may, however, be associated with the above described habituation effect to laboratory experimental settings, which can often be observed in multiple laboratory measurements (e.g., Langewitz et al, 1989). Finally, the similar average respiratory rates and average magnitudes of high frequency HRV measures in the spontaneous and paced breathing conditions provide further evidence that paced breathing has little effect on respiratory sinus arrhythmia (RSA) and supports the use of pacing as a method to control for the sizable effects of breathing frequency on RSA that can severely confound estimation of cardiac vagal control of heart rate (see, e.g., Grossman et al, 1990;Ritz & Dahme, 2006;Ritz et al, 2001).…”

Section: Discussionmentioning

confidence: 99%

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Stability of heart rate variability indices reflecting parasympathetic activity

et al. 2012

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Heart rate variability (HRV) is a measure of autonomic influences on heart rate that has frequently been used as a transsituationally consistent biomarker for cardiovascular health and emotional or cognitive functions. The psychometric properties of HRV however remain unclear. In the present study, we examined the reliability and temporal stability of parasympathetic HRV measures and estimated the portion of variance explained by transsituationally consistent trait variance and by effects of the situation and person-situation interaction with structural equation modeling. The results show good reliability of indices reflecting central parasympathetic control over heart rate and that about 40% of the variance of a single HRV measurement can be explained by effects of the situation and person-situation interaction. An aggregation across at least two measurements may be recommended when using HRV as a transsituationally consistent biomarker or trait.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Stability of heart rate variability indices reflecting parasympathetic activity

et al. 2012

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“…During the highly reproducible and observer-independent mental stress task, the volunteers had to respond as fast as possible to color lights flashing in random order by pressing a push-button of the corresponding color. 7,8 Blood pressure and heart rate were measured at the finger of the left arm (Finapres, Ohmeda, USA). The volunteers were allocated to different protocol arms: 7 subjects underwent measurements before and after stress testing; in 5 subjects, FMD was repeatedly measured before and 10, 30, and 45 minutes after mental stress; and in 6 subjects, FMD was measured before and 10 minutes after completing the mental stress task during continuous intraarterial infusion of BQ-123 (1 nmol/min; Clinalfa, Switzerland), a selective endothelin-A receptor (ET A ) receptor antagonist, started 15 minutes before the mental stress test.…”

Section: Study Protocolmentioning

confidence: 99%

Mental Stress Induces Prolonged Endothelial Dysfunction via Endothelin-A Receptors

Spieker

Hürlimann²,

Ruschitzka³

et al. 2002

Circulation

300

197

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Background — Mental stress is a risk factor for atherosclerosis and may precipitate myocardial ischemia and infarction. Because endothelial dysfunction is an early manifestation of atherosclerosis, we investigated the impact of mental stress on endothelial function. Methods and Results — The effects of a 3-minute mental stress task on endothelium-dependent vasodilation were studied in healthy subjects without cardiovascular risk factors. Flow-mediated (FMD) and nitroglycerin (0.4 mg sublingual)-induced vasodilation were studied before and after mental stress by high-resolution ultrasound of the radial artery. Additionally, FMD was assessed before and 10 to 45 minutes after mental stress during intraarterial infusion of a selective endothelin A receptor antagonist (BQ-123, 1 nmol/min) or saline, respectively. Endothelium-dependent vasodilation was reduced by half for about 45 minutes (8.0±1.1% versus 4.1±1.0%; P <0.002), whereas endothelium-independent vasodilation to nitroglycerin remained unaffected (15.6±1.6 versus 14.3±1.3%; NS). Intraarterial infusion of BQ-123, a selective endothelin-A receptor antagonist, but not saline prevented the impairment of endothelium-dependent vasodilation (8.6±1.2 versus 9.4±1.3%; NS). In contrast, intraarterial infusion of norepinephrine of similar duration as mental stress did not inhibit FMD. Conclusions — Mental stress induces prolonged endothelial dysfunction, which is prevented by selective endothelin-A receptor antagonism. This represents a novel and important link between mental stress and atherosclerotic vascular disease.

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“…11 For the CPT, patients were asked to put one hand into ice water (0°C) up to the wrist for 2 minutes. MS and CPT are established stimuli for the sympathetic nervous system.…”

Section: Ms and Cptmentioning

confidence: 99%

Coffee Blunts Mental Stress–Induced Blood Pressure Increase in Habitual but Not in Nonhabitual Coffee Drinkers

et al. 2005

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Abstract-Coffee is widely consumed, especially during mental stress conditions. Cardiovascular impact of coffee remains debated because the underlying mechanisms of action are complex. We reported previously differential cardiovascular stimulation of coffee at rest depending on habitual consumption. The present study was designed to evaluate the effects of coffee on cardiovascular response to mental stress. In 15 healthy volunteers (6 habitual, 9 nonhabitual coffee drinkers), we assessed the effect of mental stress on blood pressure (BP), heart rate (HR), and muscle sympathetic activity (MSA) before and after a triple espresso, intravenous caffeine, and placebo in the same subjects. Under baseline conditions, mental stress significantly increases MSA (ϩ2.5Ϯ0.7 volts per minute; ϩ14.1Ϯ10.3%), systolic (ϩ11.6Ϯ4.1 mm Hg) and diastolic BP (ϩ6.4Ϯ2.0 mm Hg), and HR (ϩ9.6Ϯ1.8 minutes Ϫ1). In nonhabitual coffee drinkers, a triple espresso but not caffeine induced an additional increase in systolic BP (ϩ9Ϯ6.3 mm Hg; Pϭ0.003) during mental stress, whereas in habitual drinkers, the stress-induced BP increase was blunted (ϩ4Ϯ3.9 mm Hg; PϭNS). As a result, nonhabitual coffee drinkers experienced significantly higher BP during mental stress than habitual drinkers (151Ϯ17.9/83Ϯ5.6 mm Hg versus 130Ϯ7.8/74Ϯ6.7 mm Hg; PϽ0.05). Caffeine induced similar effects in habitual and nonhabitual coffee drinkers at rest and during mental stress. The response to the cold pressor test was not influenced by coffee drinking in both groups. In conclusion, in nonhabitual coffee drinkers, coffee enhances the cardiovascular response to mental stress with an additional increase in systolic BP, whereas in habitual drinkers, the response is blunted. Caffeine alone does not exert any potentiating effect, confirming that ingredients other than caffeine are partially responsible for the stimulating effect of coffee on the cardiovascular system. (Hypertension. 2005;46:521-526.)

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The reliability of psychophysiological examinations under field conditions: Results of repetitive mental stress testing in middle-aged men

Cited by 16 publications

References 0 publications

Stability of heart rate variability indices reflecting parasympathetic activity

Stability of heart rate variability indices reflecting parasympathetic activity

Mental Stress Induces Prolonged Endothelial Dysfunction via Endothelin-A Receptors

Coffee Blunts Mental Stress–Induced Blood Pressure Increase in Habitual but Not in Nonhabitual Coffee Drinkers

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