title: Sleep disturbance, obesity, physical fitness and quality of life in older women: EXERNET study group.
abstract: OBJECTIVE
  To investigate the association between physical fitness, obesity, health related quality of life (HRQoL) and sleep disturbance in 463 community-dwelling older Spanish women (66-91 years of age).
  
  
  METHODS
  Cross-sectional study.
  
  
  METHODS
  Sleep disturbance was assessed with the Jenkins Sleep Scale. Active and sedentary behaviors were recorded by standardized questionnaires. HRQoL was assessed with the EuroQoL-5D. Anthropometric measurements were obtained using standardized techniques. Body fat was measured using bioelectrical impedance. Physical fitness was evaluated by a set of eight tests.
  
  
  RESULTS
  Sleep disturbance was reported by 45.1% of women, being associated with higher body mass index (p < 0.05) and waist circumference (p < 0.01). Presence of insomnia was inversely associated with physical fitness. Women in the upper tertile of fitness index had 92.0% lower risk of sleep disturbance as compared to the lower tertile (p = 0.08), while women in the highest tertile of upper body strength had 76.4% lower risk of sleep disturbance as compared to the lower tertile (p < 0.05). Women without sleep disturbance showed better HRQoL.
  
  
  CONCLUSIONS
  Sleep disturbance was associated with central obesity, lower physical fitness and reduced HRQoL. Interventions involving weight management and improvement of physical fitness may contribute to better sleep quality in older women.
authors.affiliation: a Growth, Exercise, Nutrition and Development (GENUD) Toledo Research Group , Universidad de Castilla-La Mancha , Toledo , Spain.
authors.forename: B
authors.initials: B
authors.lastname: Moreno-Vecino
authors.affiliation: a Growth, Exercise, Nutrition and Development (GENUD) Toledo Research Group , Universidad de Castilla-La Mancha , Toledo , Spain.
authors.forename: A
authors.initials: A
authors.lastname: Arija-Blázquez
authors.affiliation: b ImFINE Research Group , Technical University of Madrid , Madrid , Spain.
authors.forename: R
authors.initials: R
authors.lastname: Pedrero-Chamizo
authors.affiliation: c Centro Universitario de la Defensa , Zaragoza , Spain.|d GENUD Research Group , University of Zaragoza , Zaragoza , Spain.
authors.forename: A
authors.initials: A
authors.lastname: Gómez-Cabello
authors.affiliation: a Growth, Exercise, Nutrition and Development (GENUD) Toledo Research Group , Universidad de Castilla-La Mancha , Toledo , Spain.
authors.forename: L M
authors.initials: LM
authors.lastname: Alegre
authors.affiliation: e Faculty of Medicine , University of Zaragoza, and Lozano Blesa University Hospital , Zaragoza , Spain.
authors.forename: F R
authors.initials: FR
authors.lastname: Pérez-López
authors.affiliation: b ImFINE Research Group , Technical University of Madrid , Madrid , Spain.
authors.forename: M
authors.initials: M
authors.lastname: González-Gross
authors.affiliation: c Centro Universitario de la Defensa , Zaragoza , Spain.
authors.forename: J A
authors.initials: JA
authors.lastname: Casajús
authors.affiliation: a Growth, Exercise, Nutrition and Development (GENUD) Toledo Research Group , Universidad de Castilla-La Mancha , Toledo , Spain.
authors.forename: I
authors.initials: I
authors.lastname: Ara
mesh_terms: D000273:Adipose Tissue; D000368:Aged; D000369:Aged, 80 and over; D000886:Anthropometry; D015992:Body Mass Index; D003430:Cross-Sectional Studies; D005260:Female; D006801:Humans; D056128:Obesity, Abdominal / Q000150:complications* / Q000503:physiopathology / Q000523:psychology; D010809:Physical Fitness; D011788:Quality of Life; D057185:Sedentary Behavior; D012893:Sleep Wake Disorders / Q000209:etiology* / Q000503:physiopathology / Q000523:psychology; D013030:Spain; D011795:Surveys and Questionnaires; D055105:Waist Circumference
keywords: Sleep disturbance; aging; body fat; fitness