Walking assessment in XXXX with @entity2649 : capacity, performance, and self-report measures.

@entity1 @entity2649 @entity4464 @entity158 @entity717
BACKGROUND CONTEXT: Ambulation limitation is the hallmark of impairment in @entity2649 ( @entity2649 ). Capacity and performance have been defined as two distinct aspects of disability. Previous literature suggests that a @entity1 's walking capacity may not be reflected in their daily walking performance. PURPOSE: To examine the relationship between survey instruments, tested walking capacity, and daily ambulatory performance in @entity1 diagnosed with @entity2649 . STUDY DESIGN/SETTING: Prospective laboratory and clinical observational study at a tertiary care spine clinic. @entity1 SAMPLE: Twelve subjects with @entity2649 significant enough to be scheduled for epidural injection. OUTCOME MEASURES: Questionnaire (including the Swiss Spinal Stenosis Questionnaire, @entity158 Disability Index, @entity717 Index, Quebec Back @entity158 Disability Scale, and 36-Item Short Form Health Survey), laboratory walk testing (walking capacity), and activity monitors (community ambulation). METHODS: Subjects filled out functional questionnaires, performed a Self-Paced Walking Test ( @entity4464 ) of up to 30 minutes, and wore an Actigraph activity monitor during walking hours for 7 days. RESULTS: There was no statistically @entity4464 ( @entity4464 ) and community ambulation per day (activity monitors), however, the maximum time of continuous activity during community ambulation had a strong relationship (r=0.63) with the @entity4464 . Fifteen self-report measures of ambulation were significantly correlated with the @entity4464 , activity monitor, or both. Of these, 13 (87%) were more highly correlated to the @entity4464 than the activity monitor. The @entity4464 had a strong relationship (r>0.60, p<.05) with global function scales but community ambulation did not. CONCLUSIONS: Walking capacity and walking performance in @entity2649 appear to be different constructs. Survey instruments appear to reflect capacity rather than performance. This dissociation between walking capacity and walking performance has implications for the clinical management and outcomes assessment of @entity1 with @entity2649 .
