To the top

Page Manager: Webmaster
Last update: 9/11/2012 3:13 PM

Tell a friend about this page
Print version

Insomnia and cardiorespir… - University of Gothenburg, Sweden Till startsida
To content Read more about how we use cookies on

Insomnia and cardiorespiratory fitness in a middle-aged population: the SCAPIS pilot study.

Journal article
Authors Ding Zou
Heini Wennman
Örjan Ekblom
Ludger Grote
Daniel Arvidsson
Anders Blomberg
Kjell Torén
Göran Bergström
Mats Börjesson
Jan A Hedner
Published in Sleep & breathing = Schlaf & Atmung
Volume 23
Issue 1
Pages 319-326
ISSN 1522-1709
Publication year 2019
Published at Institute of Neuroscience and Physiology
Institute of Neuroscience and Physiology, Department of Physiology
Institute of Medicine, Department of Public Health and Community Medicine, Section of Occupational and environmental medicine
Institute of Medicine, Department of Internal Medicine and Clinical Nutrition
Department of Food and Nutrition, and Sport Science
Institute of Medicine, Department of Molecular and Clinical Medicine
Pages 319-326
Language en
Subject categories Clinical Medicine


The relationship between insomnia and cardiorespiratory fitness (CRF), a well-established risk factor for cardiovascular disease, has not been extensively studied. We aimed to assess the independent association between insomnia and CRF in a population-based cohort of subjects aged 50 to 64 years.Subjects participating in the Swedish CArdioPulmonary bioImaging Study (SCAPIS) pilot cohort (n = 603, men 47.9%) underwent a submaximal cycle ergometer test for estimation of maximal oxygen consumption (VO2max). Data on physical activity and sedentary time were collected via waist-worn accelerometers. An insomnia severity index score ≥ 10 was used to define insomnia.Insomnia was identified in 31.8% of the population. The VO2max was significantly lower in insomnia subjects compared with the non-insomnia group (31.2 ± 6.3 vs. 32.4 ± 6.5 ml* kg-1 *min-1, p = 0.028). There was no difference in objectively assessed physical activity or time spent sedentary between the groups. In a multivariate generalized linear model adjusting for confounders, an independent association between insomnia status and lower VO2max was found in men, but not in women (β = - 1.15 [95% CI - 2.23-- 0.06] and - 0.09 [- 1.09-0.92], p = 0.038 and 0.866, respectively).We found a modest, but significant, association between insomnia and lower CRF in middle-aged men, but not in women. Our results suggest that insomnia may link to cardiovascular disease via reduced CRF. Insomnia may require a specific focus in the context of health campaigns addressing CRF.

Page Manager: Webmaster|Last update: 9/11/2012

The University of Gothenburg uses cookies to provide you with the best possible user experience. By continuing on this website, you approve of our use of cookies.  What are cookies?