Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

Understanding human arm stiffness modulation in overground pHRI: The roles of kinematics, perturbation, and trunk sway.

PloS one·2026

Same author

Dwelling on the bad: Negative arguments and stimuli are given more weight in both cumulative and noncumulative tasks.

Quarterly journal of experimental psychology (2006)·2025

Same author

Trunk velocity-dependent Light Touch reduces postural sway during standing.

PloS one·2019

See all related articles

Search research articles

Related Experiment Video

Updated: Aug 22, 2025

SSVEP-based Experimental Procedure for Brain-Robot Interaction with Humanoid Robots

SSVEP-based Experimental Procedure for Brain-Robot Interaction with Humanoid Robots

Published on: November 24, 2015

A robot for overground physical human-robot interaction experiments.

Sambad Regmi¹, Devin Burns², Yun Seong Song¹

¹Department of Mechanical and Aerospace Engineering, Missouri University of Science and Technology, Rolla, MO, United States of America.

|November 10, 2022

Summary

Researchers developed Ophrie, a novel mobile robot for physical human-robot interaction (pHRI) during walking tasks. This robot measures human arm stiffness to advance understanding of overground pHRI biomechanics.

More Related Videos

Haptic/Graphic Rehabilitation: Integrating a Robot into a Virtual Environment Library and Applying it to Stroke Therapy

Haptic/Graphic Rehabilitation: Integrating a Robot into a Virtual Environment Library and Applying it to Stroke Therapy

Published on: August 8, 2011

Author Spotlight: Assessing Brain Activity in Robotic-Assisted Lower Limb Rehabilitation Using fNIRS

Author Spotlight: Assessing Brain Activity in Robotic-Assisted Lower Limb Rehabilitation Using fNIRS

Published on: June 7, 2024

Related Experiment Videos

Last Updated: Aug 22, 2025

SSVEP-based Experimental Procedure for Brain-Robot Interaction with Humanoid Robots

SSVEP-based Experimental Procedure for Brain-Robot Interaction with Humanoid Robots

Published on: November 24, 2015

Haptic/Graphic Rehabilitation: Integrating a Robot into a Virtual Environment Library and Applying it to Stroke Therapy

Haptic/Graphic Rehabilitation: Integrating a Robot into a Virtual Environment Library and Applying it to Stroke Therapy

Published on: August 8, 2011

Author Spotlight: Assessing Brain Activity in Robotic-Assisted Lower Limb Rehabilitation Using fNIRS

Author Spotlight: Assessing Brain Activity in Robotic-Assisted Lower Limb Rehabilitation Using fNIRS

Published on: June 7, 2024

Area of Science:

Robotics
Biomechanics
Human-Computer Interaction

Background:

Physical human-robot interaction (pHRI) is crucial for emerging applications like walking assistance.
Investigating human movement biomechanics during overground pHRI is essential for developing intuitive and effective systems.

Purpose of the Study:

To introduce Ophrie, a novel one-arm mobile robot specifically designed for physical interaction tasks in overground settings.
To enable the measurement of human arm stiffness during overground pHRI to reveal biomechanical insights.

Main Methods:

Designed a mobile robot with unique pHRI requirements: low output impedance and capability for small interaction forces.
Integrated sensors to measure human arm stiffness while a human walks alongside the robot.

Main Results:

The Ophrie robot successfully facilitates physical interaction in overground human-robot scenarios.
The robot's capability to measure human arm stiffness was demonstrated, providing biomechanical data.

Conclusions:

Ophrie represents a significant advancement for studying overground pHRI.
This novel robot is expected to facilitate new experiments and deepen the understanding of human-robot biomechanics during walking assistance and similar tasks.