Measuring hand dexterity in people with Parkinson's Disease: Reliability of pegboard tests

Journal article


Proud, Elizabeth L., Bilney, Belinda, Miller, Kimberly J., Morris, Meg E. and McGinley, Jennifer L.. (2019). Measuring hand dexterity in people with Parkinson's Disease: Reliability of pegboard tests. American Journal of Occupational Therapy. 73(4), pp. 1 - 8. https://doi.org/10.5014/ajot.2019.031112
AuthorsProud, Elizabeth L., Bilney, Belinda, Miller, Kimberly J., Morris, Meg E. and McGinley, Jennifer L.
Abstract

Importance: Knowledge regarding the reliability of pegboard tests when used to measure dexterity in people with Parkinson’s disease (PD) is currently limited. Objective: To examine the test–retest and interrater reliability of the 9-Hole Peg Test (9HPT) and Purdue Pegboard Test (PPT) in people with PD. Design: Cross-sectional observational study. For test–retest reliability, tests were completed on 2 days, 1 wk apart, in the “on” phase and “end-of-dose” period of participants’ medication cycle. For interrater reliability, occupational therapists and physical therapists rated prerecorded pegboard test performance of participants with PD. Setting: Test–retest reliability was determined in participants’ homes or in a university department. Interrater reliability was determined in a university department or a hospital setting. Participants: Test–retest reliability was determined with volunteers diagnosed with PD (N = 30). Interrater reliability was determined with a convenience sample of occupational and physical therapists (N = 11). Outcomes and Measures: The 9HPT and PPT are commonly used measures of manual dexterity. Results: PPT subtests showed higher test–retest reliability (intraclass correlation coefficients [ICCs] ≥ .90) in both phases of the medication cycle compared with the 9HPT (ICCs = .70–.81). Minimal detectable change scores indicated acceptable measurement error for both tools. Interrater reliability for recorded performance of each measure was very good (ICCs > .99), with no calculable measurement error. Conclusions and Relevance: Although both tools showed adequate test–retest and interrater reliability, results suggest that the PPT may be a more reliable measure of dexterity loss in people with PD. What This Article Adds: This study informs the clinical measurement of the loss of manual dexterity in people with PD, a frequent problem reported by people living with this disorder.

Year2019
JournalAmerican Journal of Occupational Therapy
Journal citation73 (4), pp. 1 - 8
PublisherAmerican Occupational Therapy Association
ISSN0272-9490
Digital Object Identifier (DOI)https://doi.org/10.5014/ajot.2019.031112
Scopus EID2-s2.0-85070072469
Page range1 - 8
Research GroupSchool of Allied Health
Publisher's version
File Access Level
Controlled
Place of publicationUnited States of America
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