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Citation |
Lark SD, McCarthy PW, Rowe DA. Arch. Phys. Med. Rehabil. 2011; 92(5): 812-817. |
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Affiliation |
Faculty of Health, Sport, and Science, Glamorgan University, Pontypridd, Wales; Institute of Food, Nutrition, and Human Health, Massey University, Wellington, New Zealand. |
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Copyright |
(Copyright © 2011, Elsevier Publishing) |
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DOI |
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PMID |
21530730 |
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Abstract |
UNLABELLED: Lark SD, McCarthy PW, Rowe DA. Reliability of the parallel walk test for the elderly. OBJECTIVE: To determine interrater agreement and test-retest reliability of the parallel walk test (PWT), a simple method of measuring dynamic balance in the elderly during gait. DESIGN: Cohort study. SETTING: Outpatient clinic. PARTICIPANTS: Elderly fallers (N=34; mean ± SD age, 81.3±5.4y) registered at a falls clinic participated in this study based on Mini-Mental State Examination and Barthel Index scores. INTERVENTIONS: Subjects were timed as they walked 6m between 2 parallel lines on the floor at 3 different widths (20, 30.5, 38cm) wearing their own footwear. They were scored for foot placement on (1 point) or outside the lines (2 points) by 2 separate raters. Fifteen subjects were retested 1 week later. MAIN OUTCOME MEASURES: Footfall score and time to complete the PWT. Intraclass correlation coefficients (ICCs) and 95% limits of agreement were calculated for interrater and test-retest reliability. RESULTS: For widths of 20, 30.5, and 38cm, interrater reliability ICC range was .93 to .99 and test-retest ICC range was .63 to .90. CONCLUSIONS: The PWT was implemented easily by 2 raters with a high degree of interrater reliability. Test-retest reliability was not as high, possibly because of the high susceptibility of variation from 1 week to the next for frail elderly subjects. The 20- and 30.5-cm widths are recommended for future use of the PWT. Language: en |