Journal article
The relationship between self‐report and performance‐related measures: Questioning the content validity of timed tests
Abstract
OBJECTIVE: To examine the determinants of the modest correlation between self-report and performance-related measures in patients with osteoarthritis of the hip or knee.
METHODS: Measures included the Lower Extremity Functional Scale (LEFS), the self paced walk, timed up-and-go, and stair test. Each performance measure consisted of 3 domains: time, pain (visual analog scale), and exertion (Borg scale). Activity specificity was assessed by …
Authors
Stratford PW; Kennedy D; Pagura SMC; Gollish JD
Journal
Arthritis & Rheumatism, Vol. 49, No. 4, pp. 535–540
Publisher
Wiley
Publication Date
August 15, 2003
DOI
10.1002/art.11196
ISSN
0004-3591