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Article type: Research Article
Authors: Bulthuis, Yvettea | Vollenbroek-Hutten, Miriamb; * | Hermens, Hermieb | Vendrig, Lexc | van Lummel, Robd
Affiliations: [a] Medisch Spectrum Twente, Enschede, The Netherlands | [b] Roessingh Research and Development, Enschede, The Netherlands | [c] RAC Zeist, Zeist, The Netherlands | [d] McRoberts BV, Den Haag, The Netherlands
Correspondence: [*] Address for correspondence: M.Vollenbroek-Hutten, Roessingh Research and Development, Roessinghsbleekweg 33B, 7522 AH Enschede, The Netherlands. Tel.: +31 534 875777; Fax: +31 534 340849; E-mail: m.vollenbroek@rrd.nl
Abstract: This study investigates the relationship between psychological distress and disturbed sleep characteristics in patients with chronic low-back pain. Higher levels of psychological distress are expected to be related to lower sleep quality, more pain and stiffness in the morning and a different physical activity pattern during the night. Patients were divided into a group with a high level (PD-subjects, n = 13) and a group with a low level (ND-subjects, n = 13) of psychological distress, using the Distress-and-Risk-Assessment-Method. Also, 12 non-symptomatic subjects (NS-subjects) participated. Pain intensity, stiffness and sleep quality when waking up were measured alongside activity pattern during the night. Results showed relationships between psychological distress and sleep quality; PD-subjects experienced significantly more pain and stiffness in the low back when waking up and a lower sleep quality compared to ND and NS-subjects. PD-subjects also had a significant lower lying time, a higher general activity level but moved less while lying down.
DOI: 10.3233/BMR-2004-17206
Journal: Journal of Back and Musculoskeletal Rehabilitation, vol. 17, no. 2, pp. 69-76, 2004
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