Chronic Low Quality Sleep Impairs Postural Control in Healthy Adults

Fabianne Furtado, Bruno da Silva B Gonçalves, Isabela Lopes Laguardia Abranches, Ana Flávia Abrantes and Arturo Forner-Cordero

PLOS ONE, 2016, vol. 11, issue 10, 1-13

Abstract: The lack of sleep, both in quality and quantity, is an increasing problem in modern society, often related to workload and stress. A number of studies have addressed the effects of acute (total) sleep deprivation on postural control. However, up to date, the effects of chronic sleep deficits, either in quantity or quality, have not been analyzed. Thirty healthy adults participated in the study that consisted of registering activity with a wrist actigraph for more than a week before performing a series of postural control tests. Sleep and circadian rhythm variables were correlated and the sum of activity of the least active 5-h period, L5, a rhythm variable, obtained the greater coefficient value with sleep quality variables (wake after sleep onset WASO and efficiency sleep). Cluster analysis was performed to classify subjects into two groups based on L5 (low and high). The balance tests scores used to asses postural control were measured using Biodex Balance System and were compared between the two groups with different sleep quality. The postural tests were divided into dynamic (platform tilt with eyes open, closed and cursor) and static (clinical test of sensory integration). The results showed that during the tests with eyes closed, the group with worse sleep quality had also worse postural control performance. Lack of vision impairs postural balance more deeply in subjects with chronic sleep inefficiency. Chronic poor sleep quality impairs postural control similarly to total sleep deprivation.

Date: 2016
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Persistent link: https://EconPapers.repec.org/RePEc:plo:pone00:0163310

DOI: 10.1371/journal.pone.0163310

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