The impact of anticipating a stressful task on sleep inertia when on-call

Kovac, Katya; Vincent, Grace E.; Jay, Sarah M.; Sprajcer, Madeline; Aisbett, Brad; Lack, Leon; Ferguson, Sally A.

doi:10.1016/j.apergo.2019.102942

Cited by 15 publications

(14 citation statements)

References 53 publications

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“…Healthy subjects also reported feeling less sleepy upon awakening after having been told that they would be awoken to perform a high-stress task than after having been told that they would be awoken to perform a low-stress task. 11 In the same study, participants displayed better cognitive performance upon awakening in an 'on call' condition (expecting to be awoken during the night) than upon awakening in a control condition. 11 We acknowledge that studying volunteers rather than actual caregivers is among the limitations of the study, and that, therefore, additional data need to be obtained in caregivers.…”

Section: Discussionmentioning

confidence: 89%

“…11 In the same study, participants displayed better cognitive performance upon awakening in an 'on call' condition (expecting to be awoken during the night) than upon awakening in a control condition. 11 We acknowledge that studying volunteers rather than actual caregivers is among the limitations of the study, and that, therefore, additional data need to be obtained in caregivers. It seems however reasonable to speculate that sleep inertia would be less marked in caregivers actually responsible for life-saving interventions in response to a ventilator alarm, especially when the expected interventions are clearly defined in a protocol and when the caregivers have been trained in these interventions.…”

Section: Discussionmentioning

confidence: 89%

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Awakening efficacy of a vibrotactile device in patients on home nocturnal ventilatory assistance and healthy subjects as family caregiver proxies

et al. 2020

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The objective of this study was to test the capacity of vibrotactile stimulation transmitted to the wrist bones by a vibrating wristband to awaken healthy individuals and patients requiring home mechanical ventilation during sleep. Healthy subjects (n = 20) and patients with central hypoventilation (CH) (Congenital Central Hypoventilation syndrome n = 7; non-genetic form of CH n = 1) or chronic obstructive pulmonary disease (COPD) (n = 9), underwent a full-night polysomnography while wearing the wristband. Vibrotactile alarms were triggered five times during the night at random intervals. Electroencephalographic (EEG), clinical (trunk lift) and cognitive (record the time on a sheet of paper) arousals were recorded. Cognitive arousals were observed for 94% of the alarms in the healthy group and for 66% and 63% of subjects in the CH and COPD groups, respectively (p < 0.01). The percentage of participants experiencing cognitive arousals for all alarms, was 72% for healthy subjects, 37.5% for CH patients and 33% for COPD patients (ns) (94%, 50% and 44% for clinical arousals (p < 0.01) and 100%, 63% and 44% for EEG arousals (p < 0.01)). Device acceptance was good in the majority of cases, with the exception of one CH patient and eight healthy participants. In summary this study shows that a vibrotactile stimulus is effective to induce awakenings in healthy subjects, but is less effective in patients, supporting the notion that a vibrotactile stimulus could be an effective backup to a home mechanical ventilator audio alarm for healthy family caregivers.

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Section: Discussionmentioning

confidence: 89%

Section: Discussionmentioning

confidence: 89%

Awakening efficacy of a vibrotactile device in patients on home nocturnal ventilatory assistance and healthy subjects as family caregiver proxies

et al. 2020

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“…Participants were required to have habitual bedtimes and wake times within 2 hr of the study bedtimes and wake times (bedtimes between 22:00 and 24:00 hours and wake times between 06:00 and 09:00 hours). These are common exclusion criteria for sleep or exercise studies because they are known confounds for sleep or exercise interventions (Kovac, Vincent et al, 2020b;Vincent et al, 2019aVincent et al, , 2019b. During the recruitment process, 21 out of 41 participants did not satisfy the exclusion criteria and were excluded.…”

Section: Participantsmentioning

confidence: 99%

The effect of a short burst of exercise during the night on subsequent sleep

Dominiak

Kovac

Reynolds

et al. 2020

Journal of Sleep Research

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On-call work is an arrangement where employees may be called into work outside of their usual hours to allow coverage in emergency or unpredictable situations, when a fixed shift is not required (Vincent et al., 2020). This working arrangement is not unusual, with 21% of Australian (Australian Bureau of Statistics, 2018) and European (Eurofound, 2012) employees required to be on-call. Oncall workers are often called to work during the night and may need to perform vital work duties soon after waking (Ferguson, Paterson,

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“…There are large, systematic differences in the impact of shift schedules on individuals and in the level of sleepiness they experience [3,4]. In settings where workers may be called upon immediately after being awakened from sleep-e.g., on-call operations [5], emergency response [6], healthcare [7], and split duty schedules [8]-individuals are at further risk of sleepiness and potentially making sleepiness-related errors, due to sleep inertia (SI). This refers to the transient period of sleepiness, grogginess, disorientation, and decreased cognitive performance that occurs upon awakening [9].…”

Section: Introductionmentioning

confidence: 99%

Trait Interindividual Differences in the Magnitude of Subjective Sleepiness from Sleep Inertia

et al. 2021

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In shift work settings and on-call operations, workers may be at risk of sleep inertia when called to action immediately after awakening from sleep. However, individuals may differ substantially in their susceptibility to sleep inertia. We investigated this using data from a laboratory study in which 20 healthy young adults were each exposed to 36 h of total sleep deprivation, preceded by a baseline sleep period and followed by a recovery sleep period, on three separate occasions. In the week prior to each laboratory session and on the corresponding baseline night in the laboratory, participants either extended their sleep period to 12 h/day or restricted it to 6 h/day. During periods of wakefulness in the laboratory, starting right after scheduled awakening, participants completed neurobehavioral tests every 2 h. Testing included the Karolinska Sleepiness Scale to measure subjective sleepiness, for which the data were analyzed with nonlinear mixed-effects regression to quantify sleep inertia. This revealed considerable interindividual differences in the magnitude of sleep inertia, which were highly stable within individuals after both baseline and recovery sleep periods, regardless of study condition. Our results demonstrate that interindividual differences in subjective sleepiness due to sleep inertia are substantial and constitute a trait.

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The impact of anticipating a stressful task on sleep inertia when on-call

Cited by 15 publications

References 53 publications

Awakening efficacy of a vibrotactile device in patients on home nocturnal ventilatory assistance and healthy subjects as family caregiver proxies

Awakening efficacy of a vibrotactile device in patients on home nocturnal ventilatory assistance and healthy subjects as family caregiver proxies

The effect of a short burst of exercise during the night on subsequent sleep

Trait Interindividual Differences in the Magnitude of Subjective Sleepiness from Sleep Inertia

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