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Sleep-wake disturbances in sedentary community-dwelling elderly adults with functional limitations.

ABSTRACT: To evaluate sleep-wake disturbances in sedentary community-dwelling elderly adults with functional limitations.Cross-sectional.Lifestyle Interventions and Independence in Elder (LIFE) Study.Community-dwelling persons (mean age 78.9) who spent fewer than 20 min/wk in the previous month engaged in regular physical activity and fewer than 125 min/wk of moderate physical activity, and had a Short Physical Performance Battery (SPPB) score of <10 (N = 1,635).Mobility was evaluated according to 400-m walk time (slow gait speed defined as <0.8 m/s) and SPPB score (? 7 defined moderate to severe mobility impairment). Physical inactivity was defined according to sedentary time, as a percentage of accelerometry wear time with activity of <100 counts/min; participants in the top quartile of sedentary time were classified as having a high sedentary time. Sleep-wake disturbances were evaluated using the Insomnia Severity Index (ISI) (range 0-28; ? 8 defined insomnia), Epworth Sleepiness Scale (ESS) (range 0-24; ? 10 defined daytime drowsiness), Pittsburgh Sleep Quality Index (PSQI) (range 0-21; >5 defined poor sleep quality), and Berlin Questionnaire (high risk of sleep apnea).Prevalence rates were 43.5% for slow gait speed and 44.7% for moderate to severe mobility impairment, with 77.0% of accelerometry wear time spent as sedentary time. Prevalence rates were 33.0% for insomnia, 18.1% for daytime drowsiness, 47.8% for poor sleep quality, and 32.9% for high risk of sleep apnea. Participants with insomnia had a mean ISI score of 12.1, those with daytime drowsiness had a mean ESS score of 12.5, and those with poor sleep quality had a mean PSQI score of 9.2. In adjusted models, measures of mobility and physical inactivity were generally not associated with sleep-wake disturbances, using continuous or categorical variables.In a large sample of sedentary community-dwelling elderly adults with functional limitations, sleep-wake disturbances were prevalent but only mildly severe and were generally not associated with mobility impairment or physical inactivity.

SUBMITTER: Vaz Fragoso CA

PROVIDER: S-EPMC4057978 | biostudies-literature | 2014 Jun

REPOSITORIES: biostudies-literature

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Sleep-wake disturbances in sedentary community-dwelling elderly adults with functional limitations.

Vaz Fragoso Carlos A CA Miller Michael E ME Fielding Roger A RA King Abby C AC Kritchevsky Stephen B SB McDermott Mary M MM Myers Valerie V Newman Anne B AB Pahor Marco M Gill Thomas M TM

Journal of the American Geriatrics Society 20140602 6

<h4>Objectives</h4>To evaluate sleep-wake disturbances in sedentary community-dwelling elderly adults with functional limitations.<h4>Design</h4>Cross-sectional.<h4>Setting</h4>Lifestyle Interventions and Independence in Elder (LIFE) Study.<h4>Participants</h4>Community-dwelling persons (mean age 78.9) who spent fewer than 20 min/wk in the previous month engaged in regular physical activity and fewer than 125 min/wk of moderate physical activity, and had a Short Physical Performance Battery (SPP ...[more]

PMID: 24889836

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Project description:To evaluate the effect of structured physical activity on respiratory outcomes in community-dwelling elderly adults with mobility limitations.Multicenter, randomized trial of physical activity vs health education, with respiratory variables prespecified as tertiary outcomes over an intervention period of 24-42 months. Physical activity included walking (goal of 150 min/week) and strength, flexibility, and balance training. Health education included workshops on topics relevant to older adults and upper extremity stretching exercises.Lifestyle Interventions and Independence in Elders (LIFE) Study.Community-dwelling persons aged 70-89 with Short Physical Performance Battery scores less than 10 (N = 1,635).Dyspnea severity (defined as moderate to severe according to a Borg index >2 immediately after a 400-m walk), forced expiratory volume in 1 second (FEV1) (<lower limit of normal (LLN) defined low breathing capacity), and maximal inspiratory pressure (MIP) (<LLN defined respiratory muscle weakness) were assessed at baseline and 6, 18, and 30 months. Hospitalization for exacerbation of obstructive airways disease (EOAD) and pneumonia was also ascertained over the 42-month follow-up period.The randomized groups were similar in baseline demographics, including mean age (79) and sex (67% female). The effect of physical activity on dyspnea severity, FEV1, and MIP was no different from that of health education but was associated with higher likelihood of respiratory hospitalization, significantly for EOAD (hazard ratio (HR) = 2.34, 95% confidence interval (CI) = 1.19-4.61, P = .01) and marginally for pneumonia (HR = 1.54, 95% CI = 0.98-2.42, P = .06).In older persons with mobility limitations, physical activity was associated with higher likelihood of respiratory hospitalization than health education, but differences in dyspnea severity, FEV1, and MIP did not accompany this effect-indicating that higher hospital use could be attributable to greater participant contact.

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Dataset Information

Sleep-wake disturbances in sedentary community-dwelling elderly adults with functional limitations.

Publications

Sleep-wake disturbances in sedentary community-dwelling elderly adults with functional limitations.

Similar Datasets

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