Accession Number : ADA290916

Title :   Sleep During SEAL Delivery Vehicle (SDV)/Dry Dock Shelter Exercises Analyzed by a Graphic Approach.

Descriptive Note : Final rept.,

Corporate Author : NAVAL HEALTH RESEARCH CENTER SAN DIEGO CA

Personal Author(s) : Naitoh, P. ; Kelly, T. L. ; Hunt, P. ; Goforth, H. W., Jr

PDF Url : ADA290916

Report Date : NOV 1994

Pagination or Media Count : 28

Abstract : Naval Special Warfare (NSW) personnel frequently participate in missions involving extended work hours and nocturnal waking periods. This can have a negative effect on sleep patterns, which in turn could have detrimental impact on cognitive performance. Environmental factors aboard submarines that degrade quantity and quality of sleep and increase fatigue of NSW Sea-Air-Land (SEAL) personnel have been previously evaluated by Phil Hunt, CDR, MC, USN, a submarine medical officer (unpublished memorandum). Such factors include (1) persistent light, noise, crowding and activity in the berthing area, and (2) conflicts between the work/rest schedules of the submarine crew and SEAL Delivery Vehicle (SDV)/Dry Deck Shelter (DDS) personnel. Hunt recommended that the berthing area be made more conducive to quality sleep. He also recommended regular use of an aerobic exercise machine which, in addition to physiological benefits, may improve quality and quantity of sleep. Sleep surveys are an important tool to assist in the development of an appropriate work/rest schedule for a given mission scenario. These techniques have been used previously in relation to many different occupations, both in the military and the civilian sectors (e.g., Investigation of the Navy Workweek at Sea, 1975, by the Navy Personnel Research and Development Center, San Diego, and The Standard ShiftWork Index, 1991, by the Shiftwork Research Team at the University of Sheffield, England). A guide to optimizing sleep during special warfare operations has been published (Naitoh & Kelly, 1992); however, the sleep log/sleep questionnaire analysis techniques necessary to assess wake/sleep patterns were not explained in that report.

Descriptors :   *NAVAL PERSONNEL, *PERFORMANCE(HUMAN), *PHYSIOLOGY, *NAVAL WARFARE, *SLEEP DEPRIVATION, *SLEEP, SCENARIOS, ENVIRONMENTS, IMPACT, SHELTERS, TEAMS(PERSONNEL), TIME, MEDICINE, QUALITY, SCHEDULING, SURVEYS, MISSIONS, WAKE, GRAPHICS, NAVAL RESEARCH, VEHICLES, CIVILIAN POPULATION, OFFICER PERSONNEL, SUBMARINES, UNCONVENTIONAL WARFARE, SEALS(STOPPERS), GREAT BRITAIN, REST, SUBMARINE PERSONNEL.

Subject Categories : Stress Physiology
      Psychology
      Anatomy and Physiology

Distribution Statement : APPROVED FOR PUBLIC RELEASE