European journal of pain : EJP
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Central sensitization (CS) is found in patients with musculoskeletal disorders and is related to clinical symptoms, including pain-related disability. The Central Sensitization Inventory (CSI) has been developed for patients who are at risk of symptoms related to CS, and CSI severity levels are suggested for clinical interpretation of the CSI score. However, the longitudinal relationship between CSI severity and pain-related disability is unclear in primary care. In this study, we investigated the association between CSI severity levels and the profiles of patients with musculoskeletal disorders as well as the longitudinal relationship between CSI severity levels and pain-related disability in primary care settings. ⋯ Higher CSI severity levels predicted higher pain-related disability for patients with musculoskeletal disorders in a primary care setting. CSI is a clinically useful prediction tool in patients with musculoskeletal disorders.
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Experimental models of pain in humans are crucial for understanding pain mechanisms. The most often used muscle pain models involve the injection of algesic substances, such as hypertonic saline solution or nerve growth factor or the induction of delayed onset muscle soreness (DOMS) by an unaccustomed exercise routine. However, these models are either invasive or take substantial time to develop, and the elicited level of pain/soreness is difficult to control. To overcome these shortcomings, we propose to elicit muscle pain by a localized application of short-wave diathermy (SWD). ⋯ This study presents an experimental model to elicit sustained muscle pain based on short-wave diathermy. The main advantages of the model are its noninvasiveness, the possibility to control stimulation parameters in a reliable way and the convenience of the time frame in which pain and hyperalgesia are developed.
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Randomized Controlled Trial Clinical Trial
Cognitive functional therapy in patients with non-specific chronic low back pain-a randomized controlled trial 3-year follow-up.
This randomized controlled trial investigated the efficacy of cognitive functional therapy (CFT) compared with manual therapy and exercise (MT-EX) for people with non-specific chronic low back pain (NSCLBP) at 3-year follow-up. ⋯ Cognitive functional therapy (CFT) was more effective than manual therapy and exercise (MT-EX) in reducing disability at 3-year follow-up, in people with non-specific chronic low back pain. The sustained reduction in disability without concomitant reductions in pain intensity in the CFT group suggests a de-coupling of the pain-disability relationship. CFT resulted in long-lasting reductions in anxiety and depression, and pain-related fear regarding work compared to MT-EX. The findings support the long-term benefits of a individualized behaviourally orientated intervention that targets pain beliefs, functional restoration and lifestyle factors.