Operational assessment of the 5-h on/10-h off watchstanding schedule on a US Navy ship: sleep patterns, mood and psychomotor vigilance performance of crewmembers in the nuclear reactor department
| dc.contributor.author | Shattuck, Nita Lewis | |
| dc.contributor.author | Matsangas, Panagiotis | |
| dc.contributor.corporate | Naval Postgraduate School (U.S.) | en_US |
| dc.contributor.department | Operations Research (OR) | en_US |
| dc.date.accessioned | 2017-07-12T14:36:27Z | |
| dc.date.available | 2017-07-12T14:36:27Z | |
| dc.date.issued | 2016 | |
| dc.description | The article of record as published may be found at http://dx.doi.org/10.1080/00140139.2015.1073794 | en_US |
| dc.description.abstract | We assessed sleep patterns, psychomotor vigilance performance, work demands and mood of 77 crewmembers of USS NIMITZ (CVN-68) on the rotating 5-h on/10-h off (5/10) watchstanding schedule. Within the 3-day cycle of the 5/10, sleep occurred at distinctly different times each day. On two of these days, sailors typically received only brief, 4-h sleep episodes followed by periods of sustained wakefulness (approximately 22 and 20 h). Crewmembers received approximately seven hours of sleep daily, but reported excessive fatigue and dissatisfaction with their schedule. Crewmembers’ mood worsened significantly over the course of the underway phase. Psychomotor vigilance performance (reaction times, lapses) was significantly degraded compared to performance when working circadian-aligned schedules. Overall, standing watch on the 5/10 schedule, combined with other work duties, resulted in poor sleep hygiene. Crewmembers on the 5/10 experienced periodic bouts of sustained wakefulness and accrued a significant sleep debt due to extended workdays and circadian-misaligned sleep. | en_US |
| dc.description.sponsorship | US Navy's Twenty-first Century Sailor Office | en_US |
| dc.description.sponsorship | Naval Medical Research Center Advanced Medical Development Program | en_US |
| dc.format.extent | 8 p. | en_US |
| dc.identifier.citation | N.L. Shattuck, P. Matsangas, "Operational assessment of the 5-h on/10-h off watchstanding schedule on a US Navy ship: sleep patterns, mood and psychomotor vigilance performance of crewmembers in the nuclear reactor department," Ergonomics, v.59, no.5 (2016), pp. 657-664. | en_US |
| dc.identifier.uri | https://hdl.handle.net/10945/55196 | |
| dc.publisher | Taylor & Francis | en_US |
| dc.rights | This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States. | en_US |
| dc.subject.author | Shiftwork | en_US |
| dc.subject.author | Sleep deprivation | en_US |
| dc.subject.author | Fatigue | en_US |
| dc.subject.author | Shiftworking | en_US |
| dc.subject.author | Watchstanding schedules | en_US |
| dc.subject.author | Work scheduling | en_US |
| dc.subject.author | Circadian misalignment | en_US |
| dc.title | Operational assessment of the 5-h on/10-h off watchstanding schedule on a US Navy ship: sleep patterns, mood and psychomotor vigilance performance of crewmembers in the nuclear reactor department | en_US |
| dc.type | Article | en_US |
| dspace.entity.type | Publication |
