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Related Experiment Video

Updated: Jan 29, 2026

Development of a Novel Task-oriented Rehabilitation Program using a Bimanual Exoskeleton Robotic Hand
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Investigating age-related decline in sensorimotor control using robotic tasks.

Laura Alvarez-Hidalgo1, Ellie Edlmann2, Gunnar Schmidtmann3

  • 1School of Computing, Engineering and Mathematics, University of Plymouth, Plymouth, United Kingdom.

Frontiers in Aging Neuroscience
|January 28, 2026
PubMed
Summary

Robot-based tasks objectively measure age-related sensorimotor decline. Older adults showed slower movements and reduced force, with viscous resistance tasks most sensitive to these changes, aiding clinical assessment.

Keywords:
aging and motor functionbimanual and unimanual coordinationmotor learningrobotic assessmentsensorimotor control

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Area of Science:

  • Neuroscience
  • Biomechanics
  • Gerontology

Background:

  • Aging is linked to sensorimotor control changes, impacting function and increasing fall risk.
  • Current motor assessments often lack objectivity, necessitating quantitative tools.

Purpose of the Study:

  • To develop and validate robot-based tasks for assessing age-related sensorimotor performance differences.
  • To compare sensorimotor capabilities between young and older adults using novel robotic evaluations.

Main Methods:

  • Three robot-based tasks using the vBOT manipulandum were designed for bimanual and unimanual movements under altered dynamics.
  • Tasks included motor learning, object-like force fields, and viscous force fields to challenge sensorimotor control.
  • Evaluated healthy young (<35 years) and older (>60 years) adults, comparing dominant and non-dominant arm performance.

Main Results:

  • All tasks revealed age-related sensorimotor performance deficits.
  • The viscous resistance task was most sensitive, detecting declines in movement speed, force, and response time.
  • Older adults exhibited slower movements, longer task completion times, lower peak forces, and delayed response onset compared to younger adults.

Conclusions:

  • Robot-based tasks provide objective, quantitative metrics for age-related sensorimotor decline.
  • These tasks can sensitively detect functional changes associated with aging.
  • Findings support the use of robot-based assessments for clinical evaluation and monitoring of sensorimotor health in aging populations.