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Related Experiment Videos

Instrumented objects for quantitative evaluation of hand grasp

W D Memberg1, P E Crago

  • 1VA Medical Center, Cleveland, OH 44106, USA.

Journal of Rehabilitation Research and Development
|January 1, 1997
PubMed
Summary
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New instrumented objects enable quantitative assessment of hand function for neuroprosthetic grasp systems and upper limb rehabilitation. These tools aid in evaluating daily living activities and improving prosthetic control strategies.

Area of Science:

  • Biomedical Engineering
  • Rehabilitation Science
  • Neuroscience

Background:

  • Quantitative assessment of hand function is crucial for evaluating neuroprosthetic devices and rehabilitation techniques.
  • Existing methods may not adequately capture the nuances of functional tasks.
  • There is a need for objective tools to analyze hand grasp performance in real-world activities.

Purpose of the Study:

  • To develop and validate two instrumented objects for quantitative assessment of functional hand tasks.
  • To evaluate the utility of these objects in assessing neuroprosthetic hand grasp systems.
  • To provide tools for analyzing upper limb disabilities and rehabilitation outcomes.

Main Methods:

  • Development of two instrumented objects: one for palmar prehension (e.g., drinking, book manipulation) and one for lateral prehension (e.g., eating, writing).

Related Experiment Videos

  • Monitoring of grasp force and object orientation during simulated functional tasks.
  • Assessment trials conducted in an outpatient clinic setting.

    • Main Results:

    • The instrumented objects successfully provided quantitative data on grasp force and object orientation during simulated activities.
    • The objects demonstrated utility in assessing neuroprosthetic hand grasp systems.
    • Assessment trials were found to be quick and feasible in an outpatient setting.

    Conclusions:

    • The developed instrumented objects offer a quantitative approach to assessing hand function relevant to neuroprosthetics and rehabilitation.
    • These tools can aid in comparing control strategies and evaluating future neuroprosthetic system advancements.
    • The objects provide valuable insights into how individuals perform activities of daily living with hand grasp neuroprostheses.