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52. Physiological and Psychological Predictors of Short-Term Disability in Workers with a History of Low Back Pain: A Longitudinal Study

Author

Dubois, J.-D., Cantin, V., Piché, M., Descarreaux, M., Dubois, J.-D., Cantin, V., Piché, M., and Descarreaux, M.

Abstract

Despite an elusive pathophysiology, common characteristics are often observed in individuals with chronic low back pain (LBP). These include psychological symptoms, altered pain perception, altered pain modulation and altered muscle activation. These factors have been explored as possible determinants of disability, either separately or in cross-sectional studies, but were never assessed in a single longitudinal study. Therefore, the objective was to determine the relative contribution of psychological and neurophysiological factors to future disability in individuals with past LBP. The study included two experimental sessions (baseline and six months later) to assess cutaneous heat pain and pain tolerance thresholds, pain inhibition, as well as trunk muscle activation. Both sessions included the completion of validated questionnaires to determine clinical pain, disability, pain catastrophizing, fear-avoidance beliefs and pain vigilance. One hundred workers with a history of LBP and 19 healthy individuals took part in the first experimental session. The second experimental session was exclusively conducted on workers with a history of LBP (77/100). Correlation analyses between initial measures and disability at six months were conducted, and measures significantly associated with disability were used in multiple regression analyses. A first regression analysis showed that psychological symptoms contributed unique variance to future disability (R.sup.2 = 0.093, p = .009). To control for the fluctuating nature of LBP, a hierarchical regression was conducted while controlling for clinical pain at six months (R.sup.2 = 0.213, p .001) where pain inhibition contributed unique variance in the second step of the regression (R.sup.2 change = 0.094, p = .005). These results indicate that pain inhibition processes may constitute potential targets for treatment to alleviate future disability in individuals with past or present LBP. Then again, the link between psychological sym

Published
2016

54. EXPLORATORY COMPREHENSIVE ASSESSMENT OF RESOLUTION OF SYSTEMIC HYPERTENSION AND OBSTRUCTIVE SLEEP APNEA FOLLOWING BARIATRIC SURGERY: ROLE OF ECTOPIC FAT DEPOSITION, INFLAMMATORY PROFILE, ADIPOKINES AND AUTONOMIC ACTIVITY

Author

Auclair, A., primary, Piché, M., additional, Pettigrew, M., additional, Biertho, L., additional, Marceau, S., additional, Hould, F., additional, Biron, S., additional, Lebel, S., additional, Lescelleur, O., additional, Lacasse, Y., additional, Martin, J., additional, Bastien, M., additional, and Poirier, P., additional

Published
2016
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55. SAFETY AND MAGNITUDE OF CHANGES IN BLOOD GLUCOSE LEVELS FOLLOWING EXERCISE TRAINING SESSIONS IN PATIENTS WHO UNDERWENT A RESTRICTIVE OR A MIXED BARIATRIC SURGERY PROCEDURE

Author

Proulx, É., primary, Auclair, A., additional, Harvey, J., additional, Piché, M., additional, Rodriguez Flores, M., additional, Biertho, L., additional, Marceau, S., additional, Hould, F., additional, Biron, S., additional, Lebel, S., additional, Lescelleur, O., additional, and Poirier, P., additional

Published
2016
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