Naps and Pulses of Bright Light in Shift Workers

Sleep Clinical Trial

Official title: The Effects of a Combination of Napping and Bright Light Pulses on Shift Workers Sleepiness at the Wheel A Pilot Study

Status Completed

Clinical Trial 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.

Clinical Trial Description

Results are submitted to publication ;

Study Design

Allocation: Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Single Group Assignment, Masking: Double-Blind, Primary Purpose: Prevention

Related Conditions & MeSH terms

• Sleep

• NCT number: NCT00487292
• Study type: Interventional
• Source: Assistance Publique - Hôpitaux de Paris
• Status: Completed
• Phase: N/A
• Start date: April 2003
• Completion date: June 2006