Influence of standardized activities on validity of Assessment of Capacity for Myoelectric Control

Lindner, Helen Y; Eliasson, Ann‐Christin; Hermansson, Liselotte

doi:10.1682/jrrd.2012.12.0231

Cited by 13 publications

(15 citation statements)

References 25 publications

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“…A certified ACMC rater observes how the prosthesis user controls the myoelectric prosthetic hand during the activity and rates the items. The potential influence of the activities on the ACMC ability measures was examined previously and shown to have no significant effect on the result [21]. In the present study, each participant performed a standardized activity in the test and retest sessions.…”

Section: Outcome Measuresmentioning

confidence: 72%

See 1 more Smart Citation

Test-retest reliability and rater agreements of Assessment of Capacity for Myoelectric Control version 2.0

Lindner¹,

Langius‐Eklöf

Hermansson

2014

J Rehabil Res Dev

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Abstract-The Assessment of Capacity for Myoelectric Control (ACMC) is an observation-based tool that evaluates ability to control a myoelectric prosthetic hand. Validity evidence led to ACMC version 2.0, but the test-retest reliability and minimal detectable change (MDC) of the ACMC have never been evaluated. Investigation of rater agreements in this version was also needed because it has new definitions in certain rating categories and items. Upper-limb prosthesis users (n = 25, 15 congenital, 10 acquired; mean age 27.5 yr) performed one standardized activity twice, 2 to 5 wk apart. Activity performances were videorecorded and assessed by two ACMC raters. Data were analyzed by weighted kappa, intraclass correlation coefficient (ICC), and Bland-Altman method. For test-retest reliability, weighted kappa agreements were fair to excellent (0.52 to 1.00), ICC 2,1 was 0.94, and one user was located outside the limits of agreement in the Bland-Altman plot. MDC 95 was less than or equal to 0.55 logits (1 rater) and 0.69 logits (2 raters). For interrater reliability, weighted kappa agreements were fair to excellent in both sessions (0.44 to 1.00), and ICC 2,1 was 0.95 (test) and 0.92 (retest). Intrarater agreement (rater 1) was also excellent (ICC 3,1 0.98). Evidence regarding the reliability of the ACMC is satisfactory and MDC 95 can be used to indicate change.

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Section: Outcome Measuresmentioning

confidence: 72%

“…The ACMC is a Rasch-built measure [9][10][11]21], and the assessment result is routinely reported in Rasch ability measures. Therefore, the item raw scores are converted to Rasch ability measures using the Many-Facets Rasch Model (MFRM) [24].…”

Section: Test-retest Reliabilitymentioning

confidence: 99%

Test-retest reliability and rater agreements of Assessment of Capacity for Myoelectric Control version 2.0

Lindner¹,

Langius‐Eklöf

Hermansson

2014

J Rehabil Res Dev

Self Cite

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“…The Assessment of Capacity of Myoelectric Control (ACMC) incorporates client-chosen activities assessed with standardized methods [15]; this makes the evaluation of this measure difficult because of the variety of tasks that can be performed. However, given the applicability of this measure to the clinical population of interest, one of the suggested activities in the ACMC manual (ie, packing a suitcase) will be used to represent the ACMC.…”

Section: Resultsmentioning

confidence: 99%

Evaluation of Performance‐Based Outcome Measures for the Upper Limb: A Comprehensive Narrative Review

Wang

Hsu

Trent

et al. 2018

PM&R

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Objective performance-based outcome measures (OMs) have the potential to provide unbiased and reproducible assessments of limb function. However, very few of these performance-based OMs have been validated for upper limb (UL) prosthesis users. OMs validated in other clinical populations (eg, neurologic or musculoskeletal conditions) could be used to fill gaps in existing performance-based OMs for UL amputees. Additionally, a joint review might reveal consistent gaps across multiple clinical populations. Therefore, the objective of this review was to systematically characterize prominent measures used in both sets of clinical populations with regard to (1) location of task performance around the body, (2) possible grips employed, (3) bilateral versus unilateral task participation, and (4) details of scoring mechanisms. A systematic literature search was conducted in EMBASE, Medline, and Cumulative Index to Nursing and Allied Health electronic databases for variations of the following terms: stroke, musculoskeletal dysfunction, amputation, prosthesis, upper limb, outcome, assessments. Articles were included if they described performance-based OMs developed for disabilities of the UL. Results show most tasks were performed with 1 hand in the space directly in front of the participant. The tip, tripod, and cylindrical grips were most commonly used for the specific tasks. Few measures assessed sensation and movement quality. Overall, several limitations in OMs were identified. The solution to these limitations may be to modify and validate existing measures originally developed for other clinical populations as first steps to more aptly measure prosthesis use while more complete assessments for UL prosthesis users are being developed.

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“…Assessment of capacity for myoelectric control (ACMC) [76,77] is a Rasch rating scale that is used to detect expected change in a person’s ability using objective variables. There are 30 items that evaluate a prosthetic arm’s ability to do specific functions that involve gripping, holding, releasing, and coordinating between limbs.…”

Section: Discussion Of Regulatory Frameworkmentioning

confidence: 99%

Implementation of 3D Printing Technology in the Field of Prosthetics: Past, Present, and Future

Manero

Smith

Sparkman

et al. 2019

IJERPH

124

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There is an interesting and long history of prostheses designed for those with upper-limb difference, and yet issues still persist that have not yet been solved. Prosthesis needs for children are particularly complex, due in part to their growth rates. Access to a device can have a significant impact on a child’s psychosocial development. Often, devices supporting both cosmetic form and user function are not accessible to children due to high costs, insurance policies, medical availability, and their perceived durability and complexity of control. These challenges have encouraged a grassroots effort globally to offer a viable solution for the millions of people living with limb difference around the world. The innovative application of 3D printing for customizable and user-specific hardware has led to open-source Do It Yourself “DIY” production of assistive devices, having an incredible impact globally for families with little recourse. This paper examines new research and development of prostheses by the maker community and nonprofit organizations, as well as a novel case study exploring the development of technology and the training methods available. These design efforts are discussed further in the context of the medical regulatory framework in the United States and highlight new associated clinical studies designed to measure the quality of life impact of such devices.

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Influence of standardized activities on validity of Assessment of Capacity for Myoelectric Control

Cited by 13 publications

References 25 publications

Test-retest reliability and rater agreements of Assessment of Capacity for Myoelectric Control version 2.0

Test-retest reliability and rater agreements of Assessment of Capacity for Myoelectric Control version 2.0

Evaluation of Performance‐Based Outcome Measures for the Upper Limb: A Comprehensive Narrative Review

Implementation of 3D Printing Technology in the Field of Prosthetics: Past, Present, and Future

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