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Hyperkyphosis and self-reported and objectively measured sleep quality in older men.


ABSTRACT: OBJECTIVES:Hyperkyphosis is associated with restricted pulmonary function and posture, potentially contributing to poor sleep. A previous study reported older women with hyperkyphosis had worse self-reported sleep quality, but it is less clear if this association exists in men. We examined the association between hyperkyphosis and subjective and objective sleep quality in a cohort of older men. DESIGN:Longitudinal analysis of data from large cohort of older men participating in the Osteoporotic Fractures in Men Study (MrOS). SETTING:Community. PARTICIPANTS:We studied 754 men participants in MrOS who had kyphosis measured during the 3rd clinic visit (2007-2009) and future subjective and objective sleep quality assessed between 2009-2012 (an average of 2.9 years later). INTERVENTION:N/A. MEASUREMENTS:To measure kyphosis, 1.7 cm thick wooden blocks were placed under the participant's head to achieve a neutral spine position while lying supine on a DXA table. We collected data on both subjective (Pittsburgh Sleep Quality Index [PSQI], and Epworth Sleepiness Scale [ESS]) and objective (wrist actigraphy: Total Sleep Time [TST], Wake After Sleep Onset [WASO], Sleep Efficiency [SE], Sleep Onset Latency [SOL]; and polysomnography: Apnea Hypopnea Index [AHI]) sleep measurements. Those who required >3 blocks were considered hyperkyphotic (n = 145 or 19.2%). RESULTS:In unadjusted and multivariable analyses, men with hyperkyphosis did not report having worse self-reported sleep characteristics based on PSQI and ESS. Similarly, there were no significant associations between hyperkyphosis and objective sleep measures. When examined as a continuous predictor (blocks ranging from 0-8), results were no different. CONCLUSIONS:Although we hypothesized that poor posture in those with hyperkyphosis would interfere with sleep, in this sample of older men, worse kyphosis was not associated with self-reported or objectively measured poor sleep quality.

SUBMITTER: Kaufmann CN 

PROVIDER: S-EPMC7012394 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature

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Hyperkyphosis and self-reported and objectively measured sleep quality in older men.

Kaufmann Christopher N CN   Shen Jian J   Woods Gina N GN   Lane Nancy E NE   Stone Katie L KL   Kado Deborah M DM  

PloS one 20200211 2


<h4>Objectives</h4>Hyperkyphosis is associated with restricted pulmonary function and posture, potentially contributing to poor sleep. A previous study reported older women with hyperkyphosis had worse self-reported sleep quality, but it is less clear if this association exists in men. We examined the association between hyperkyphosis and subjective and objective sleep quality in a cohort of older men.<h4>Design</h4>Longitudinal analysis of data from large cohort of older men participating in th  ...[more]

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