Session Time: 12:30pm-2:00pm
Location: Research Hub - Kiosk 1
Disclosures: Jennifer K. Peterson, MA PT: No disclosure data submitted.
Objective: (1) Develop a performance-based measure for adult upper limb (UL) prosthetic functioning through broad (i.e. overall performance) and functional domain-specific (e.g., control skills) assessment of commonplace activities; (2) conduct initial psychometric evaluation of the Capacity Assessment of Prosthetic Performance for the Upper Limb (CAPPFUL).
Design: Internal consistency of CAPPFUL and interrater reliability for task, functional domain, and full scale (sub)scores among three independent raters were estimated. Known-group validity was examined comparing scores by amputation level. Convergent validity was assessed between CAPPFUL and two hand dexterity/function tests; discriminant validity against self-reported disability.
Setting: Six prosthetic rehabilitation centers across the United States.
Participants: Subjects (n = 60) with UL amputation utilizing a prosthesis.
Interventions: Not applicable.
Main Outcome Measures: Not applicable.
Results: Interrater reliability was excellent for scoring on the task, domain, and full scale scores (ICCs = .88-.99). Internal consistency was good (α = .79-.82). Generally, subjects with higher amputation levels scored lower (worse) than subjects with lower amputation levels. CAPPFUL demonstrated strong correlations with measures of hand dexterity/functioning (rs = -.58-.72); moderate correlation to self-reported disability (r = -.35).
Conclusions: CAPPFUL was designed as a versatile, low burden measure of prosthesis performance for any UL functional prosthetic device type and any UL amputation level. CAPPFUL assesses overall performance, as well as five functional performance domains, during completion of 11 tasks that require movement in all planes while manipulating everyday objects requiring multiple grasp patterns. Psychometric evaluation indicates good interrater reliability, internal consistency, known-group validity, and convergent and discriminant validity.
Level of Evidence: Level III
To cite this abstract in AMA style:Peterson JK, Ryan TA. Development and Psychometric Validation of Capacity Assessment of Prosthetic Performance for the Upper Limb (CAPPFUL) [abstract]. PM R. 2019; 11(S2)(suppl 2). https://pmrjabstracts.org/abstract/development-and-psychometric-validation-of-capacity-assessment-of-prosthetic-performance-for-the-upper-limb-cappful/. Accessed December 9, 2023.
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PM&R Meeting Abstracts - https://pmrjabstracts.org/abstract/development-and-psychometric-validation-of-capacity-assessment-of-prosthetic-performance-for-the-upper-limb-cappful/