Characterization of compensatory trunk movements during prosthetic upper limb reaching tasks.

MedStar author(s):
Citation: Archives of Physical Medicine & Rehabilitation. 93(11):2029-34, 2012 Nov.PMID: 22449551Institution: MedStar National Rehabilitation NetworkForm of publication: Journal ArticleMedline article type(s): Journal Article | Research Support, U.S. Gov't, Non-P.H.S.Subject headings: *Amputation/rh [Rehabilitation] | *Artificial Limbs | *Torso/ph [Physiology] | *Upper Extremity | Aged | Biomechanics | Functional Laterality | Humans | Humerus | RadiusLocal holdings: Available online from MWHC library: 2000 - present, Available in print through MWHC library:1999-2007ISSN:
  • 0003-9993
Name of journal: Archives of physical medicine and rehabilitationAbstract: CONCLUSIONS: The altered physiologic structure of the arm caused the individuals to develop a different motor control strategy than an intact arm. Functional limitations, such as the loss of distal degrees of freedom, required persons with amputation to use trunk displacement in place of arm/hand movement. These compensatory movements during reaching tasks may be a cause of prosthesis rejection and, in some cases, may be resolved with proper rehabilitative training. Analysis of compensatory trunk movements may also provide a useful endpoint for evaluating new prosthesis designs. Copyright 2012 American Congress of Rehabilitation Medicine. Published by Elsevier Inc. All rights reserved.DESIGN: Survey.INTERVENTIONS: Not applicable.MAIN OUTCOME MEASURES: Three-dimensional motion analysis data were collected during simulated reaching tasks, such as donning a cap, placing a nut, and sorting clothes. The metrics were range of motion of the trunk in the 3 anatomical directions and elbow and shoulder path distance.OBJECTIVE: To characterize the compensatory movements of the trunk during functional reaching tasks performed by upper limb prosthesis users.PARTICIPANTS: Transhumeral and transradial prosthesis users (n=10) and uninjured control subjects (n=10).RESULTS: Prosthesis users had significantly larger truncal movements than controls during all 3 reaching tasks in all 3 directions (P<=.03). Shoulder path distance in persons with amputation was larger than in controls in all 3 tasks (P<.01). Elbow path distance in persons with amputation was larger than in controls in the nut and clothes tasks (P<=.02). The subgroup of transradial prosthesis users displayed these abnormal movements despite the presence of an intact elbow.SETTING: Clinical laboratory at a national rehabilitation hospital.All authors: Dromerick AW, Holley RJ, Lum PS, Metzger AJDigital Object Identifier: Date added to catalog: 2013-09-17
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Item type Current library Collection Call number Status Date due Barcode
Journal Article MedStar Authors Catalog Article Available 22449551

Available online from MWHC library: 2000 - present, Available in print through MWHC library:1999-2007

CONCLUSIONS: The altered physiologic structure of the arm caused the individuals to develop a different motor control strategy than an intact arm. Functional limitations, such as the loss of distal degrees of freedom, required persons with amputation to use trunk displacement in place of arm/hand movement. These compensatory movements during reaching tasks may be a cause of prosthesis rejection and, in some cases, may be resolved with proper rehabilitative training. Analysis of compensatory trunk movements may also provide a useful endpoint for evaluating new prosthesis designs. Copyright 2012 American Congress of Rehabilitation Medicine. Published by Elsevier Inc. All rights reserved.

DESIGN: Survey.

INTERVENTIONS: Not applicable.

MAIN OUTCOME MEASURES: Three-dimensional motion analysis data were collected during simulated reaching tasks, such as donning a cap, placing a nut, and sorting clothes. The metrics were range of motion of the trunk in the 3 anatomical directions and elbow and shoulder path distance.

OBJECTIVE: To characterize the compensatory movements of the trunk during functional reaching tasks performed by upper limb prosthesis users.

PARTICIPANTS: Transhumeral and transradial prosthesis users (n=10) and uninjured control subjects (n=10).

RESULTS: Prosthesis users had significantly larger truncal movements than controls during all 3 reaching tasks in all 3 directions (P<=.03). Shoulder path distance in persons with amputation was larger than in controls in all 3 tasks (P<.01). Elbow path distance in persons with amputation was larger than in controls in the nut and clothes tasks (P<=.02). The subgroup of transradial prosthesis users displayed these abnormal movements despite the presence of an intact elbow.

SETTING: Clinical laboratory at a national rehabilitation hospital.

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