The current project is a safety and health intervention focused on sleep and fatigue among truck driver teams (pairs), where one driver sleeps in a moving vehicle while the other partner drives. This study is conducted within the Oregon Healthy Workforce Center (OHWC), a NIOSH Center of Excellence in Total Worker Health. We will evaluate engineering and behavioral interventions to improve sleep, reduce fatigue, and impact Total Worker Health. An enhanced cab intervention will alter whole body vibrations during driving and sleep periods, and includes a therapeutic mattress system and an active suspension seat. The enhanced cab will be evaluated alone and in combination with a behavioral sleep intervention adapted from our effective SHIFT (Safety \&Health Involvement For Truckers) program. The interventions prioritize hazard reduction according to the hierarchy of controls, and will be evaluated with a randomized controlled design.
Age range
21 Years
Sex
ALL
See this in plain English?
AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
Change from baseline in self-reported sleep duration in hours at 2 months
Timeframe: Baseline and 2 months (post-enhanced cab)
Change from baseline in self-reported sleep duration in hours at 3-4 months
Timeframe: Baseline and 3-4 months (post-enhanced cab + behavioral sleep program)
Change from baseline in self-reported sleep quality at 2 months
Timeframe: Baseline and 2 months (post-enhanced cab)
Change from baseline in self-reported sleep quality at 3-4 months
Timeframe: Baseline and 3-4 months (post-enhanced cab + behavioral sleep program)
Change from baseline in sleep disturbance at 2 months
Timeframe: Baseline and 2 months (post-enhanced cab)
Change from baseline in sleep-related impairment at 2 months
Timeframe: Baseline and 3-4 months (post-enhanced cab + behavioral sleep program)
Change from baseline in sleep-related impairment at 2 months
Timeframe: Baseline and 2 months (post-enhanced cab)
Change from baseline in sleep-related impairment at 3-4 months
Timeframe: Baseline and 3-4 months (post-enhanced cab + behavioral sleep program)
Change from baseline in self-reported fatigue at 2 months
Timeframe: Baseline and 2 months (post-enhanced cab)
Change from baseline in self-reported fatigue at 3-4 months
Timeframe: Baseline and 3-4 months (post-enhanced cab + behavioral sleep program
Change from baseline in actigraphic measures of sleep duration in hours at 2 months
Timeframe: One week samples at Baseline and 2 months (post-enhanced cab)
Change from baseline in actigraphic measures of sleep duration in hours at 3-4 months
Timeframe: One week samples at Baseline and 3-4 months (post-enhanced cab + behavioral sleep program)
Change from baseline in actigraphic measures of sleep efficiency percentage at 2 months
Timeframe: One week samples at Baseline and 2 months (post-enhanced cab)
Change from baseline in actigraphic measures of sleep efficiency percentage at 3-4 months
Timeframe: One week samples at Baseline and 3-4 months (post-enhanced cab + behavioral sleep program)