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Naps and Pulses of Bright Light in Shift Workers

NCT00487292 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 9

Last updated 2007-06-19

No results posted yet for this study

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.

Conditions

  • Sleep

Interventions

BEHAVIORAL

naps and pulses of bright light

Sponsors & Collaborators

  • University of Paris 5 - Rene Descartes

    collaborator OTHER

  • Assistance Publique - Hôpitaux de Paris

    lead OTHER

Principal Investigators

  • damien leger, M.D, Ph.D · Centre du Sommeil Hotel Dieu

  • pierre philip, M.D, Ph.D · Hopital Pellegrin Bordeaux

Study Design

Allocation
RANDOMIZED
Purpose
PREVENTION
Masking
DOUBLE
Model
SINGLE_GROUP

Eligibility

Min Age
18 Years
Max Age
60 Years
Sex
MALE
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2003-04-30
Completion
2006-06-30

Countries

  • France

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT00487292 on ClinicalTrials.gov