Heart rate and blood pressure consequences of an afternoon SIESTA (Snooze-Induced Excitation of Sympathetic Triggered Activity)

Mulcahy, David; Wright, Christine; Sparrow, Jane; Cunningham, David A.; Curcher, D; Purcell, Henry; Fox, Keith

doi:10.1016/0002-9149(93)90524-g

Cited by 39 publications

(26 citation statements)

References 10 publications

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“…This can be moderated by limiting the length of a nap, since awakening from a long nap (> 30 min) with deep sleep would increase sleep inertia 5,10) . Another problem is thought to be the increased risk of a coronary heart attack related to the daytime nap [11][12][13][14] . Acute increases in heart rate and blood pressure at awakening are associated with these problems 15) .…”

Section: Introductionmentioning

confidence: 99%

Self-Awakening Prevents Acute Rise in Blood Pressure and Heart Rate at the Time of Awakening in Elderly People

et al. 2005

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Self-awakening, waking up at a designated time decided before sleeping, could prevent failure in the blood circulation vessel system such as heart attack, acute increases in heart rate or blood pressure upon waking. Previous research showed that anticipatory changes occurred in heart rate prior to awakening from a short nap by means of self-awakening for young participants. However, the effects of self-awakening remained unclear for elderly people. The present study examined the effects of self-awakening on heart rate and blood pressure in a short afternoon nap (20 min) among the elderly. Nine participants [74.1 (SD = 5.01) years old] underwent both self-awakening and forced-awakening conditions. In the self-awakening condition, it was revealed that blood pressure gradually increased before the scheduled time of awakening, and that heart rate did not show a rapid increase at arousal. In contrast, forced-awakening induced acute increases in both heart rate and blood pressure. These results suggest that self-awakening facilitates a more smooth transition from sleep to wakefulness via autonomic activation before the time of self-awakening.

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Section: Introductionmentioning

confidence: 99%

Self-Awakening Prevents Acute Rise in Blood Pressure and Heart Rate at the Time of Awakening in Elderly People

et al. 2005

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“…10 The morning waking hours are characterized by an increased onset of acute MI and other acute cardiovascular events including sudden death when compared to the occurrence of such events at night. [11][12][13] Increases in heart rate and blood pressure, which result in increased myocardial oxygen demand, may act as triggers of these phenomena in the morning.…”

Section: Discussionmentioning

confidence: 99%

“…[11][12][13] Increases in heart rate and blood pressure, which result in increased myocardial oxygen demand, may act as triggers of these phenomena in the morning. 10 Thus, the daily siesta, in addition to being part of a more sedentary lifestyle, may increase coronary disease risk by triggering cardiac events.…”

Section: Discussionmentioning

confidence: 99%

“…The post siesta cardiovascular response very closely resembles the period soon after waking up in the morning, since both are characterized by increases in heart rate and blood pressure, which result in increased myocardial oxygen demand. 10 This physiological response is probably responsible for the increased onset of acute myocardial infarction (MI) and other acute cardiovascular events including sudden death during the morning hours compared to the occurrence of these events at night. [11][12][13] Thus, it is reasonable to hypothesize that the siesta increases the exposure to a post sleep phenomena that may act as a trigger of MI.…”

mentioning

confidence: 99%

“…[11][12][13] Thus, it is reasonable to hypothesize that the siesta increases the exposure to a post sleep phenomena that may act as a trigger of MI. 10 To address this issue we studied whether the siesta is associated with risk of MI in a large population-based case-control study in Costa Rica.…”

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confidence: 99%

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