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Related Experiment Video

Updated: May 16, 2026

Estimation of Contact Regions Between Hands and Objects During Human Multi-Digit Grasping
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Estimation of Contact Regions Between Hands and Objects During Human Multi-Digit Grasping

Published on: April 21, 2023

Relation between object properties and EMG during reaching to grasp.

Nadine Fligge1, Holger Urbanek, Patrick van der Smagt

  • 1German Aerospace Center (DLR), Center for Robotics and Mechatronics, Muenchner Strasse 20, D-82234 Oberpfaffenhofen-Wessling, Germany. nadine.fligge@dlr.de

Journal of Electromyography and Kinesiology : Official Journal of the International Society of Electrophysiological Kinesiology
|December 5, 2012
PubMed
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Surface electromyography (sEMG) signals recorded before object contact can predict grasp properties. This enables prosthetic hands to anticipate object size and weight for intuitive grasping.

Area of Science:

  • Robotics
  • Biomedical Engineering
  • Human-Computer Interaction

Background:

  • Stable object grasping with artificial hands requires prior knowledge of object properties for effective manipulation.
  • Pre-shaping prosthetic hands based on object characteristics enhances user experience and efficiency.

Purpose of the Study:

  • To investigate the feasibility of using surface electromyography (sEMG) signals to infer object properties before physical interaction.
  • To determine if sEMG data can provide information about object size and weight for prosthetic hand control.

Main Methods:

  • Human subjects grasped various objects at different locations.
  • Muscle activity was recorded using eight sEMG electrodes on the forearm.
  • sEMG data was analyzed to identify correlations with object properties.

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Related Experiment Videos

Last Updated: May 16, 2026

Estimation of Contact Regions Between Hands and Objects During Human Multi-Digit Grasping
09:41

Estimation of Contact Regions Between Hands and Objects During Human Multi-Digit Grasping

Published on: April 21, 2023

Assessing Corticospinal Excitability During Goal-Directed Reaching Behavior
05:05

Assessing Corticospinal Excitability During Goal-Directed Reaching Behavior

Published on: December 2, 2022

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09:11

Design and Use of an Apparatus for Presenting Graspable Objects in 3D Workspace

Published on: August 8, 2019

Main Results:

  • sEMG signals collected prior to hand-object contact contained relevant information about object properties.
  • The study demonstrated the ability to predict object size and weight from pre-contact sEMG data.

Conclusions:

  • sEMG signals offer a viable, non-invasive method for estimating object properties for prosthetic hands.
  • This approach can facilitate more intuitive and adaptive grasping in artificial hand systems.