190,864 research outputs found
Establishing a Standardized Clinical Assessment Tool of Pathologic and Prosthetic Hand Function: Normative Data, Reliability, and Validity
No full textABSTRACT. Light CM, Chappell PH, Kyberd PJ. Establishing a standardized clinical assessment tool of pathologic and prosthetic hand function: normative data, reliability, and validity. Arch Phys Med Rehabil 2002;83:776-83. Objective: To develop a new assessment procedure, the Southampton Hand Assessment Procedure (SHAP), that allows contextual results of hand function to be obtained readily in a clinical environment. Design: Reliability (test-retest, interrater) and validity (criterion, content) of new assessment procedure against standard medical outcome measure techniques. Setting: Normative data collected in a university laboratory. Participants: Twenty-four volunteers selected on the basis of optimum hand function using these criteria: age (range, 18-25y), and no adverse hand trauma, neurologic condition, or disabling effects of the upper limb. Interventions: Not applicable. Main Outcome Measures: The normative control group was assessed for variability, and the procedure measured in terms of interrater and test-retest reliability. The absence of a direct comparison prevents a criterion standard from being established; however, content validity was shown by expert peer review. Results: The control group data were shown to be multivariate gaussian; test-retest and interrater reliability were demonstrated at the 95% confidence level. The content validity was demonstrated by peer panel approval. Conclusions: Results of the control group established the statistical integrity of SHAP. Clinical trials are underway, although more extensive use of the procedure is advocated in primary care and rehabilitation centers where physiotherapy and occupational therapy are actively used in hand rehabilitation
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Algorithmic control of a multifunction hand prosthesis
No full textResearch in the Control Engineering Group at Southampton University has established and demonstrated the principles of hierarchical control of multiple degree of freedom prosthetic hands. Through a number of prototypes the concept has been refined. The control is made as simple as possible. The user issues instruction via a single electromyographic channel and an electronic controller manages the grip posture and tension, adapting it to the most suitable shape, depending on the outline and size of the object. The details of the object are gained from sensors upon and within the artificial hand. Thus the conscious control by the user is minimised. The most recent work, which forms the substance of this thesis, is based on experiments using two different prostheses, controlled in the same hierarchical way. The first hand is a specially designed four degree of freedom prosthesis. Attention was paid in the design to ease of manufacture and potential production of the device. This prosthesis was controlled by an integrated circuit microprocessor and manual tasks were performed by the author, using the hand upon a splint, mounted on his own arm. An additional hand was based on a commercial single degree of freedom hand. The entire system including the electronic controller was made portable so that it could be worn in the field by the user of a conventional artificial hand and an assessment of its practicality made. The transducers used were adapted and improved for application upon the hands and sensors designed to detect both object contact and slip was developed. In addition different techniques for detecting object movement were explored. The resulting experience allowed a nunber of recommendations to be made concerning the future research in prosthetics as well as more general applications for an adaptive hand.</p
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
843779_A1_supp_mat – Supplemental material for Clinical evaluation of the refined clothespin relocation test: A pilot study
No full textSupplemental material, 843779_A1_supp_mat for Clinical evaluation of the refined clothespin relocation test: A pilot study by Ali Hussaini, Wendy Hill and Peter Kyberd in Prosthetics and Orthotics International</p
843779_Appendix_A2_RCRT_GradingCompensations_(2) – Supplemental material for Clinical evaluation of the refined clothespin relocation test: A pilot study
No full textSupplemental material, 843779_Appendix_A2_RCRT_GradingCompensations_(2) for Clinical evaluation of the refined clothespin relocation test: A pilot study by Ali Hussaini, Wendy Hill and Peter Kyberd in Prosthetics and Orthotics International</p
843779_A3_supp_mat – Supplemental material for Clinical evaluation of the refined clothespin relocation test: A pilot study
No full textSupplemental material, 843779_A3_supp_mat for Clinical evaluation of the refined clothespin relocation test: A pilot study by Ali Hussaini, Wendy Hill and Peter Kyberd in Prosthetics and Orthotics International</p
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