著者
Charlotte C. GUPTA Michelle DOMINIAK Katya KOVAC Amy C. REYNOLDS Sally A. FERGUSON Cassie J. HILDITCH Madeline SPRAJCER Grace E. VINCENT
出版者
National Institute of Occupational Safety and Health
雑誌
Industrial Health (ISSN:00198366)
巻号頁・発行日
pp.2021-0124, (Released:2021-10-25)
被引用文献数
3

Due to the unpredictable nature of working time arrangements, on-call workers experience regular disruption to sleep, particularly if woken by calls. Sleep disruption can impact long term physical and mental health, next day performance, and importantly, performance immediately after waking. To reduce the impact of performance impairments upon waking (i.e., reducing sleep inertia), research has investigated strategies to promote alertness (e.g., bright light, caffeine, and exercise). This review puts forth on-call workers who are likely to return to sleep after a call, it is also important to consider the impact of these sleep inertia countermeasures on subsequent sleep. Future research should build on the preliminary evidence base for sleep inertia countermeasures by examining the impact on subsequent sleep. This research is key for both supporting alertness and performance during a call (“switching on”) and for allowing the on-call worker to return to sleep after a call (“switching off”).
著者
Georgia A. TUCKWELL Grace E. VINCENT Charlotte C. GUPTA Sally A. FERGUSON
出版者
National Institute of Occupational Safety and Health
雑誌
Industrial Health (ISSN:00198366)
巻号頁・発行日
pp.2021-0174, (Released:2022-01-28)
被引用文献数
5

Sedentary behavior at work contributes to detrimental cognitive outcomes (e.g., decreases in attention). The length of time that cognitive performance benefits are sustained following bouts of breaking up sitting (e.g., using sit-stand desks or walking) is not known. A narrative review of the literature was conducted using a systematic search strategy, with keywords related to breaking up sitting interventions in office-based environments and cognitive performance outcomes in the period immediately post the cessation of the breaking up sitting intervention. Three types of office-based breaking up sitting interventions were identified; 1) sit-stand desks, 2) walking desks and 3) cycling desks. From the eight studies which met the criteria, the impacts of these interventions on cognitive performance outcomes were mixed, with significant benefits in some studies and others reporting no benefit. Of the cognitive domains assessed, working memory, attention, and psychomotor function showed significant sustained improvement for up to 30 minutes post intervention. While there are benefits to a key set of cognitive performance domains following breaking up sitting interventions in office-based settings, no studies have evaluated whether benefits to cognitive performance persist for longer than 30 minutes after the breaking up sitting intervention. Furthermore, specific applications of these cognitive benefits to tasks outside of work (e.g., driving home from work) are unknown.
著者
Crystal L. GRANT Jillian DORRIAN Alison M. COATES Maja PAJCIN David J. KENNAWAY Gary A. WITTERT Leonie K HEILBRONN Chris DELLA VEDOVA Charlotte C. GUPTA Siobhan BANKS
出版者
独立行政法人 労働安全衛生総合研究所
雑誌
Industrial Health (ISSN:00198366)
巻号頁・発行日
pp.2017-0047, (Released:2017-07-25)
被引用文献数
25

This study examined the impact of eating during simulated night shift on performance and subjective complaints. Subjects were randomized to eating at night (n=5; 23.2±5.5y) or not eating at night (n=5; 26.2±6.4y). All participants were given one sleep opportunity of 8h (22:00h-06:00h) before transitioning to the night shift protocol. During the four days of simulated night shift participants were awake from 16:00h-10:00h with a daytime sleep of 6h (10:00h-16:00h). In the simulated night shift protocol, meals were provided at ≈0700h, 1900h and 0130h (eating at night); or ≈0700h, 0930h, 1410h and 1900h (not eating at night). Subjects completed sleepiness, hunger and gastric complaint scales, a Digit Symbol Substitution Task and a 10-minute Psychomotor Vigilance Task. Increased sleepiness and performance impairment was evident in both conditions at 0400h (p<0.05). Performance impairment at 0400h was exacerbated when eating at night. Not eating at night was associated with elevated hunger and a small but significant elevation in stomach upset across the night (p<0.026). Eating at night was associated with elevated bloating on night one, which decreased across the protocol. Restricting food intake may limit performance impairments at night. Dietary recommendations to improve night-shift performance must also consider worker comfort.
著者
Georgia A. TUCKWELL Grace E. VINCENT Charlotte C. GUPTA Sally A. FERGUSON
出版者
National Institute of Occupational Safety and Health
雑誌
Industrial Health (ISSN:00198366)
巻号頁・発行日
vol.60, no.6, pp.501-513, 2022-01-28 (Released:2022-12-01)
被引用文献数
1 5

Sedentary behavior at work contributes to detrimental cognitive outcomes (e.g., decreases in attention). The length of time that cognitive performance benefits are sustained following bouts of breaking up sitting (e.g., using sit-stand desks or walking) is not known. A narrative review of the literature was conducted using a systematic search strategy, with keywords related to breaking up sitting interventions in office-based environments and cognitive performance outcomes in the period immediately post the cessation of the breaking up sitting intervention. Three types of office-based breaking up sitting interventions were identified; 1) sit-stand desks, 2) walking desks and 3) cycling desks. From the eight studies which met the criteria, the impacts of these interventions on cognitive performance outcomes were mixed, with significant benefits in some studies and others reporting no benefit. Of the cognitive domains assessed, working memory, attention, and psychomotor function showed significant sustained improvement for up to 30 minutes post intervention. While there are benefits to a key set of cognitive performance domains following breaking up sitting interventions in office-based settings, no studies have evaluated whether benefits to cognitive performance persist for longer than 30 minutes after the breaking up sitting intervention. Furthermore, specific applications of these cognitive benefits to tasks outside of work (e.g., driving home from work) are unknown.