Acute Stress Affects Heart Rate Variability During Sleep

Hall, Martica; Vasko, Raymond; Buysse, Daniel J.; Ombao, Hernando; Chen, Qingxia; Cashmere, J David; Kupfer, David J.; Thayer, Julian F.

doi:10.1097/01.psy.0000106884.58744.09

Cited by 314 publications

(237 citation statements)

References 49 publications

Supporting

Mentioning

204

Contrasting

Unclassified

Order By: Relevance

“…One of the mechanisms might be a shift towards sympathovagal balance during NREM sleep (Hall et al, 2004). The lack of significant effects in sleep efficiency in the present study may imply that the perceived stress levels were not severe enough to give these kinds of effects.…”

Section: Work Stress and Sleepcontrasting

confidence: 41%

“…Moreover, the present reduction of sleep length was relatively moderate and there was no accumulation of sleepiness over the week, which indicated that the subjects did not build up a sleep debt during the workweek. However, short sleep length has been shown to be a risk factor for ill health and mortality (Hall et al, 2004;Kripke et al, 2002). The mechanism leading to ill health might be through a suppression of many of the anabolic processes that take place during sleep, leading to an allostatic up regulation (Buckley & Schatzberg, 2005;McEwen, 2006).…”

Section: Work Stress and Sleepmentioning

confidence: 99%

See 1 more Smart Citation

Work stress and overtime work: Effects on cortisol, sleep, sleepiness and health

Dahlgren¹

2006

PsycEXTRA Dataset

View full text Add to dashboard Cite

Work stress and overtime work -effects on cortisol, sleep, sleepiness and healthAkademisk avhandling som för avläggande av filosofie doktorsexamen vid Stockholms Universitet offentligen försvaras på det engelska språket i David Magnussonsalen, Psykologiska Institutionen, Stockholms Universitet, fredagen den 15 december kl. 10.00 Anna DahlgrenIn Sweden the National Bureau of Statistics has reported an increase in stress-related disorders and sleep problems since the mid-1990's. They also report that the number of hours of overtime worked has increased. Previous research on work-related stress and overtime work has demonstrated associations with altered physiological arousal, increased risk for stress related diseases, shorter sleep, greater fatigue and impaired performance. However, there is a lack of knowledge on the effects within individuals. The general aim of the thesis was to investigate the effect of overtime work and increased work stress on sleep, the diurnal pattern of cortisol, sleepiness and subjective stress in a within-subject design. In addition, it examined individual differences in the diurnal cortisol response to stress. We used a combination of methods -questionnaires, sleep and wake diaries, objective measures of sleep, stress hormones (salivary cortisol) and ambulatory measures of heart rate and blood pressure. Studies followed office workers during two different conditions of (I) high/low work stress and (II) overtime work respectively. The individual differences in the cortisol response to stress from study I prompted study III. In this study we examined two groups that showed different cortisol responses to stress.In conclusion, the results (I) demonstrated that a week with higher workload and stress affects physiological stress markers such as cortisol, and is associated with increased sleepiness and problems of unwinding at bedtime, shorter sleep duration and longer work hours. Furthermore (II) overtime work, under conditions of relatively low workload, was shown to be associated with modest effects on physiological markers of arousal. More pronounced effects were found on sleep and fatigue, with greater problems during overtime work. Study III indicated that individual differences in cortisol response to stress maybe related to fatigue and exhaustion. RESULTS -SUMMARY OF STUDIES 36Study I -Different levels of work-related stress and the effects on sleep, fatigue and cortisol 36Study II-Overtime work and its effect on sleep, sleepiness, cortisol and blood pressure 38Study III -Individual differences in the diurnal cortisol response to stress 41 DISCUSSION 43Work IntroductionThe present thesis is focused on work related stress and long work hours. In 2005 24.4% of the Swedish workforce was experiencing work-related disorders (SCB, 2005). Stress and mental strain were the most common causes of work-related disorders among women and the third most common among men, with 13 per cent of the women having stress related disorders and 7.4 per cent of the men. Stress in working life can be asso...

show abstract

Section: Work Stress and Sleepcontrasting

confidence: 41%

Section: Work Stress and Sleepmentioning

confidence: 99%

Work stress and overtime work: Effects on cortisol, sleep, sleepiness and health

Dahlgren¹

2006

PsycEXTRA Dataset

View full text Add to dashboard Cite

show abstract

“…In this way, we controlled for the effect that arousals and intervening wakefulness may have on HRV measures (27). Reduced parasympathetic modulation during sleep, as found in the women with PMS when symptomatic, may impact the restorative properties of sleep (28). Consequently, the perception of sleep quality may be affected; women with PMS report a poorer sleep quality, although polysomnographic-defined sleep efficiency is unchanged, when they are symptomatic in the late-luteal phase compared with the follicular phase (24).…”

Section: Discussionmentioning

confidence: 99%

Reduced parasympathetic activity during sleep in the symptomatic phase of severe premenstrual syndrome

Baker

Colrain

Trinder

2008

Journal of Psychosomatic Research

View full text Add to dashboard Cite

Objective-Severe premenstrual syndrome (PMS) is a common, distressing disorder in women that manifests during the premenstrual (late-luteal) phase of the ovulatory menstrual cycle. There is some evidence that altered autonomic function may be an important component of PMS but few studies have used heart rate variability (HRV), as a sensitive marker of autonomic activity, in severe PMS and findings are conflicting.Methods-We investigated HRV during sleep, a state relatively free of external disruptions, in nine women with severe PMS and twelve controls.Results-The normal-to-normal (NN) RR-interval was shorter during the sleep period in women with PMS than in controls in both the follicular and late-luteal phases of the menstrual cycle. The standard deviation of all NN intervals (SDNN), a measure of total variability in the inter-beat interval, was lower during the sleep period in the late-luteal phase than in the follicular phase in women with PMS. The square root of the mean of the sum of the squares of differences between adjacent NN intervals (rMSSD), a measure reflecting high frequency activity, showed a similar pattern. High frequency power, a marker of parasympathetic activity, was lower during non-rapid eye movement (non-REM) and REM sleep in the late-luteal phase than in the follicular phase in women with severe PMS. Controls had a shorter NN-interval, but similar HRV measures, in the late-luteal phase compared with the follicular phase.Conclusion-These results suggest that women with severe PMS have decreased parasympathetic activity during sleep in association with their premenstrual symptoms compared to when they are symptom-free.

show abstract

“…We and others have also examined psychosocial factors as predictors of ABP dipping (Ituarte, Kamarck, Thompson, & Bacanu, 1999;) under the assumption that nocturnal physiology may be altered by daytime behaviors and concerns (Hall et al, 2004). Overall, however, surprisingly little research, to date, has examined the extent to which daytime ABP or nocturnal changes in ABP may mediate the effects of psychosocial processes on CVD risk.…”

Section: Why Study Psychosocial Processes and Abp?mentioning

confidence: 99%