Sleep
Conditions
Keywords
accidents, shift work, sleepiness, naps, bright light pulses, sleep
Brief summary
Design: paired trials without and with naps and bright light. Setting: Real driving on a private road circuit. Environmental controlled car. Participants: 9 shift workers on tree shifts (morning-afternoon-night) Measurements: Sleepiness at the wheel was measured by ambulatory polysomnography and assessed using 30 seconds segments of recordings when the percentage of theta EEG was at least 50% (15 seconds) of the period recorded. Subjects were also called to rate their sleepiness on the 7-point Stanford Sleepiness Scale (SSS). Intervention: Participants drove the same car on two similar 24 hours periods of work, with three pilots in each shift (morning, afternoon, night), separated by three weeks. During the baseline period, the subjects were told to manage their rest as they usually do in the real life. During the second experimental period, they had to rest lied in a dark room during two naps of 20 minutes and then exposed to bright light pulse (5000 lux) during 10 minutes.
Detailed description
Results are submitted to publication
Interventions
BEHAVIORALnaps and pulses of bright light
Sponsors
University of Paris 5 - Rene Descartes
Assistance Publique - Hôpitaux de Paris
Study design
Allocation
RANDOMIZED
Intervention model
SINGLE_GROUP
Primary purpose
PREVENTION
Masking
DOUBLE
Eligibility
Sex/Gender
MALE
Age
18 Years to 60 Years
Healthy volunteers
Yes
Inclusion criteria
* A professional experience of at least one year
Exclusion criteria
* With an history of chronic disease,treatments (or toxic) * Subjects with a suspicion of sleep disorders * Snorers
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| EEG sleepiness at the wheel | two periods of 8 hours driving |
Secondary
| Measure | Time frame |
|---|---|
| subjective sleepiness at the stanford sleepinesss scale | two periods of 8 hours driving |
Countries
France
Outcome results
None listed