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Vitality among Swedish post-polio patients: A physiological phenomenon
Stockholm University, Faculty of Social Sciences, Department of Psychology.
2008 (English)In: Journal of Rehabilitation Medicine, ISSN 1650-1977, Vol. 40, 709-714 p.Article in journal (Refereed) Published
Abstract [en]

Objective: To evaluate quality of life, especially vitality and fatigue, in patients with postpolio syndrome (PPS), and the relative contributions of physiological and psychological parameters for level of vitality. Design: Multi-center study. Subjects: 143 patients, diagnosed with PPS from four Swedish post-polio out-clinics. Methods: Inventories of background information, quality of life (SF36), fatigue (MFI20) and sleep quality (SQS) were used. Pain was evaluated by a VAS scale. Descriptive statistics were used for examinations of demographic data, pain, quality of life, fatigue and sleep. Correlations included all selected parameters. Hierarchical regression models were constructed to examine predictors of variations in vitality, pain, reduced activity and physical fatigue. Results: General fatigue accounted for 68% of the variation in vitality. Of this, 91% was in turn accounted for by physiological indicators. After control for age, the physiological block of variables accounted for 56.6% and 25% of the variation in vitality, if entered before and after the psychological block of variables, respectively, while the impact of the psychological block almost disappeared after accounting for the physiological indicators. Physical fatigue, age and sleep quality were associated with variation in pain, whereas BMI, pain and sleep quality accounted for differences in reduced activity and physical fatigue. Conclusions: The phenomenon of vitality in PPS patients is mostly dependent on physiological parameters and mental fatigue is not a prominent predictor of vitality in PPS. The existence of subgroups of PPS patients with and without fatigue, independent of age or polio duration, needs further study.

Place, publisher, year, edition, pages
2008. Vol. 40, 709-714 p.
Keyword [en]
postpolio, fatigue, vitality
National Category
URN: urn:nbn:se:su:diva-17294ISI: 000260295300004OAI: diva2:183815
Available from: 2009-01-12 Created: 2009-01-12 Last updated: 2011-01-10Bibliographically approved

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Wahlin, Åke
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Department of Psychology

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