Passive Mechanical Skin Stretch for Multiple Degree-of-Freedom Proprioception in a Hand Prosthesis

  • Aadeel AkhtarEmail author
  • Mary Nguyen
  • Logan Wan
  • Brandon Boyce
  • Patrick Slade
  • Timothy Bretl
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 8619)


In this paper, we present a passive linear skin stretch device that can provide proprioceptive feedback for multiple degrees of freedom (DOF) in a prosthetic hand. In a 1-DOF virtual targeting task, subjects performed as well with our device as with a vibrotactile array, and significantly better (\(p<0.05\)) than having no feedback at all. In a 3-DOF grip recognition task, subjects were able to classify six different grips with 88.0 % accuracy. Training took 6 min and the average time to classification was 5.2 s. Subjects were also able to match a set of target grip apertures with 11.1 % error on average.


Proprioception Myoelectric prostheses Skin stretch 



The authors would like to thank Elizabeth Hsiao-Wecksler for the EMG system, and Anusha Nagabandi and David Jun for help with the vibrotactile array. This work is supported in part by National Science Foundation Grant No. 0903622.


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Copyright information

© Springer-Verlag Berlin Heidelberg 2014

Authors and Affiliations

  • Aadeel Akhtar
    • 1
    Email author
  • Mary Nguyen
    • 2
  • Logan Wan
    • 3
  • Brandon Boyce
    • 2
  • Patrick Slade
    • 3
  • Timothy Bretl
    • 2
  1. 1.Neuroscience Program, Medical Scholars ProgramUniversity of Illinois at Urbana-ChampaignUrbanaUSA
  2. 2.Department of Aerospace EngineeringUniversity of Illinois at Urbana-ChampaignUrbanaUSA
  3. 3.Department of Mechanical EngineeringUniversity of Illinois at Urbana-ChampaignUrbanaUSA

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