An attempt was made to summarize a 10-year program of research that has dealt with sustained performance, work-rest scheduling, and diurnal rhythms in man. The general conclusions reached are: (1) man can probably follow a 4-4 work-rest schedule for very long periods without detriment to his performance; (2) for shorter periods of 2 or possibly 4 weeks, selected men can follow a more demanding 4/2 work-rest schedule with reasonable maintenance of performance efficiency; (3) in following the more demanding schedule, man uses up his performance reserve and so is less able to meet the demands of emergency conditions such as those imposed by sleep loss; (4) the diurnal rhythm which is evidenced in physiological measures may also be evidenced in the performance depending on the information given to, and the motivation of, the subjects, and depending also on the total work load; even where motivation is sufficiently high, the cycling may be demonstrated when the operator is overloaded; and (5) the methodology employed yielded measures that are sensitive to the manipulation of both obvious and subtle experimental variables. (Author)

  • Corporate Authors:

    North-Holland Publishing Company

    Box 211
    1000AE Amsterdam,   Netherlands 
  • Authors:
    • Alluisi, E A
    • Chiles, W D
  • Publication Date: 1967

Media Info

  • Pagination: p. 436-442
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00314954
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Contract Numbers: DA-49-193-MD-2567, NGR-18-002-008
  • Files: TRIS
  • Created Date: Aug 27 1980 12:00AM