Effects of Operational Naps on Blood Pressure and Performance Among Night Shift Workers

ConditionShift Work
Trial statusRecruiting
Trial phaseNot applicable
Trial typeInterventional
Biological sexAll
Age18+
SponsorUniversity of Pittsburgh

About this trial

Night shift work schedules disrupt sleep and have a negative impact on cardiovascular health. Most who work in public safety occupations and in healthcare work night shifts. These workers experience abnormal blood pressure during night shifts and are at greater risk of cardiovascular disease. Napping during night shifts can help to restore blood pressure patterns to a more normal pattern and may help to reduce risk of cardiovascular disease. Naps may also have an impact on alertness and performance immediately upon waking. The overarching goal of this study is to determine which duration of a nap taken during simulated night shift work has the greatest impact blood pressure and post-nap performance.

Researchers will compare 5 nap durations to see which has the greatest impact on blood pressure patterns and post-nap psychomotor performance.

Researchers hypothesize that longer naps will lead to improved blood pressure outcomes and shorter naps will contribute to better performance after waking.

Findings will help employers and employees who work night shifts determine how best to incorporate brief naps during night shift work.

Eligibility criteria

Qualifiers

non-pregnant adults (>18 years of age)

certified public safety/healthcare shift worker

is an active shift worker

resides within the Western Pennsylvania region within reasonable driving distance

Disqualifiers

current use of medication for cardiovascular disease (e.g., hypertension)

prior or current diagnosis of sleep apnea, narcolepsy, restless leg syndrome, ischemic heart disease, heart failure, stroke, chronic kidney disease, chronic liver disease, rheumatologic disease requiring prescription medication, and cancer requiring treatment in past 2 years

undiagnosed severe sleep apnea (Apnea-Hypopnea Index >30) based on at-home test

Abstains from caffeine or reports adverse effects from caffeine use

Trial design

Treatments tested in this trial

  • No-nap
  • 15-min nap
  • 30-min nap
  • 45-min nap
  • 60-min nap

Treatment groups

130 Participants
are divided into 1 treatment group

Sponsors and collaborators

University of Pittsburgh

Lead sponsor

National Heart, Lung, and Blood Institute (NHLBI)

Collaborator