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SLEEP QUALITY, FRAILTY AND BODY COMPOSITION IN A SAMPLE OF COMMUNITY-DWELLING ELDERLY
Introduction: Changes in sleep patterns and reductions in sleep quality are frequent in the elderly population. Sleep quality might influence body composition and has been associated with frailty.
Objective: To evaluate the association between sleep quality, components of the frailty phenotype, and body composition in a sample of community-dwelling elderly of Lavras-MG.
Methods: This is a cross-sectional study, carried out with elderly people, at the age of 60, or older, of both sexes. To assess sleep quality, the Pittsburgh Sleep Quality Index – PSQI was applied. The following frailty components were assessed: self-report of involuntary weight loss, decreased grip strength assessed by HGS (Hand Grip Strength), self-reported fatigue assessment by the Geriatric Depression Scale (GDS), gait speed (GS) and, physical activity level using a questionnaire adapted from the IPAQ (International Physical Activity Questionnaire). Anthropometric measurements of body weight, height, calf circumference (CC), and waist circumference (WC) were also performed. Body composition was assessed by bioelectrical impedance.
Results: The sample had a total of 141 participants, of which 116 (82%) were female and, 25 (18%) were male. The mean age of participants was 69.5±6.4 years old. The mean score of all participants on the PSQI was 6.02±3.44, 60% showed poor sleep quality. The following correlations were found between the studied variables and sleep quality: BMI (r=0.186, p=0.027), CC (r=0.171, p=0.043), WC (r=0.180, p=0.033), GS (r=0.168, p=0.046), fat mass (%) (r=0.222, p=0.008), fat mass (Kg) (0.212, p=0.012) and GDS (r=0.381, p=0.000). The logistic regression test showed a significant positive association between HGS and a negative association between fat mass and depressive symptoms with sleep quality.
Conclusion: The present study showed a high prevalence of poor sleep quality in community-dwelling elderly. Also sleep quality was associated with increased weight, body fat, and frailty components as decreased strength and depressive symptoms.
Acknowledgments: Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPQ process n.422665/2018-5).
Aging. Muscle strength. March Speed.
Universidade Federal de Lavras - Minas Gerais - Brasil
Flávia Fonseca Lage, Camila Maria Melo, Tamyres Andréa Chagas Alvim, Lara Vilar Fernandes, Rafaela Maria Guimarães