Abstract
Abstract Introduction : Sleep performs a restorative function for the body. Medical conditions such as Chronic Low Back Pain (CLBP) may cause sleep changes and impair sleep quality. Objectives : To identify the prevalence of sleep disorders among individuals with CLBP, and investigate whether there is an association between these disorders and perceived functional disability. Materials and methods : This observational, descriptive study was conducted with 51 patients seen at the Clinic of the School of Physical Therapy of Santa Catarina State University. Data were collected through interviews addressing socio-demographic and clinical data, and administration of the Roland-Morris Disability Questionnaire (RMDQ) and Pittsburgh Sleep Quality Index (PSQI). Results : Participants had high levels of functional disability (mean, 16.71 ± 4.16 score points). 82.35% of patients had poor sleep quality (mean, 10.22 ± 4.84 score points). The PSQI components with the highest mean scores were: sleep latency and sleep disturbances. There was also a weak association between functional disability and sleep quality (Spearman = 0.31; p = 0.025), i.e., the higher the disability, the worse the quality of sleep. Conclusion : We found a high prevalence of sleep disorders among patients with CLBP, and a weak association with the level of perceived disability. It is important to conduct further studies on the relationship between these factors and sleep quality. Moreover, there is a need for a multidisciplinary approach in the treatment of CLBP, in order to treat sleep disorders and improve patients' quality of life.
Highlights
Sleep performs a restorative function for the body
There is a need for a multidisciplinary approach in the treatment of Chronic Low Back Pain (CLBP), in order to treat sleep disorders and improve patients' quality of life
Data were collected through interviews addressing socio-demographic and clinical data, and administration of the Pittsburgh Sleep Quality Index (PSQI) and the Roland-Morris Disability Questionnaire (RMDQ) both validated for use in the Brazilian population
Summary
Sleep performs a restorative function for the body. Medical conditions such as Chronic Low Back Pain (CLBP) may cause sleep changes and impair sleep quality. Sleep disorders in people with chronic pain, as in the case of CLBP, cover a wide range of factors and are characterized by complaints of reduced sleep efficiency and sleep duration, increased sleep latency (time to fall asleep), fragmentation of sleep stages, and daytime sleepiness (not feelingrested during the day) [11, 12]. These disorders have a negative effect on mood, severity of perceived pain, willingness to perform daytime activities, and other quality-of-life aspects [13, 14]. It may affect patients' recovery by reducing their willingness to participate in rehabilitation programs
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