The difference between activity when in bed and out of bed. I. Healthy subjects and selected patients

David Minors, Torbjorn Akerstedt, Greg Atkinson, Merryl Dahlitz, Simon Folkard, Francis Levi, Christine Mormont, David Parkes, James Waterhouse

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    47 Citations (Scopus)

    Abstract

    The activity records of five groups of healthy or ill subjects have been measured for 4-26 days by an accelerometer placed on the nondominant wrist. These data, together with a record of times retiring to/rising from bed, have been used to produce a series of dichotomy indices for comparing the amounts of activity when in bed and out of bed. Reliable differences between individuals were found, with healthy subjects showing a greater degree of dichotomy than one subject with delayed sleep phase syndrome or three subjects with colorectal cancer. The method is convenient for extended data collection and offers the possibility of describing an individual's activity profile in a variety of circumstances.

    Original languageEnglish
    Pages (from-to)27-34
    Number of pages8
    JournalChronobiology International
    Volume13
    Issue number1
    DOIs
    Publication statusPublished - 1 Jan 1996

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  • Cite this

    Minors, D., Akerstedt, T., Atkinson, G., Dahlitz, M., Folkard, S., Levi, F., Mormont, C., Parkes, D., & Waterhouse, J. (1996). The difference between activity when in bed and out of bed. I. Healthy subjects and selected patients. Chronobiology International, 13(1), 27-34. https://doi.org/10.3109/07420529609040839