Title

Actigraphy in Older Adults: Comparison of Means and Variability of Three Different Aggregates of Measurement

Document Type

Article

Publication Date

4-1-2008

Digital Object Identifier (DOI)

http://dx.doi.org/10.1080/15402000801952872

Abstract

Actigraphy has emerged as a valuable method for measuring natural sleep patterns; however, it is unclear how many consecutive nights should be measured and what sleep parameter values are typical of older adults. This study examined sleep in relatively healthy community-based older adults for 14 consecutive days. The findings present comparison values for Actiwatch-L actigraphy in older adults, and can be used to determine an appropriate length of measurement. When using means of the aggregate period, a 3-day aggregate is comparable to the values obtained over 7- or 14-day aggregates. However, if variability of the sleep parameter is of interest, a minimum of a 7-day aggregate is needed, and 14-day aggregates are better when measuring sleep onset latency.

Was this content written or created while at USF?

No

Citation / Publisher Attribution

"Behavioral sleep medicine, v. 6, issue 2, p. 127-145."