STUDY DESIGN: A cross-sectional study. OBJECTIVE: To identify the relationship between performance measures derived from accelerometry and subjective reports of pain, disability, and health in patients with lumbar spinal stenosis (LSS). SUMMARY OF BACKGROUND DATA: Accelerometers have emerged as a measure of performance, providing the ability to characterize the pattern and magnitude of real-life activity, and sedentarism. Pain and loss of function, particularly ambulation, are common in LSS. The extent to which pain, perceived disability, and self-rated health relate to performance in patients with LSS is not well known. METHODS: Data regarding self-reported pain, disability (Oswestry Disability Index, Roland-Morris Disability Questionnaire, and Disabilities of the Arm, Shoulder, and Hand), and health (36-Item Short Form Health Survey [SF-36]) were collected from patients with LSS (n = 33). Physical activity, ambulation, and inactivity performance measures were derived from 7-day accelerometer records. Correlation and stepwise regression were used. RESULTS: The physical function subscale of the SF-36, a non-pathology-specific outcome, had the best overall correlation to physical activity and ambulation (average r = 0.53) compared with pain (average r = 0.32) and disability (average r = -0.45) outcomes. Stepwise regression models for performance were predominantly single-variable models (4 of 8 models); pain was not selected as a predictor. A second non-pathology-specific outcome, the Disabilities of Arm Shoulder and Hand, improved the prediction of performance in 5 of 8 models. CONCLUSION: Subjective measures of pain and disability had limited ability to account for real-life performance in patients with LSS. Future research is required to identify determinants of performance in patients with LSS because barriers to activity may not be disease-specific
Keywords : Accelerometry,Aged,Arm,Cross-Sectional Studies,Disability Evaluation,Hand,Humans,Linear Models,Lumbar Vertebrae,methods,Middle Aged,Pain,Pain Measurement,Patients,physiology,physiopathology,rehabilitation,Self Report,Shoulder,Spinal Stenosis,Surveys and Questionnaires,Universities,Walking,, Relationship,Between,Ambulatory,Performance, ibs london
Date of Publication : 2012 Jul 1
Authors : Pryce R;Johnson M;Goytan M;Passmore S;Berrington N;Kriellaars D;
Organisation : School of Medical Rehabilitation, University of Manitoba, Winnipeg, Manitoba, Canada. robertpryce@gmail.com
Journal of Publication : Spine (Phila Pa 1976 )
Pubmed Link : https://www.ncbi.nlm.nih.gov/pubmed/22261635
The London Spine Unit : Harley Street UK. Specialists in Cutting Edge Technologies for Spinal Surgery
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