Magnetomicrometry

We live in an era of wearable sensing, where our movement through the world can be continuously monitored by devices. Yet, we lack a portable sensor that can continuously monitor muscle, tendon, and bone motion, allowing us to monitor performance, deliver targeted rehabilitation, and provide intuiti...

Full description

Saved in:
Bibliographic Details
Published in:Science robotics 2021-08, Vol.6 (57)
Main Authors: Taylor, C R, Srinivasan, S S, Yeon, S H, O'Donnell, M K, Roberts, T J, Herr, H M
Format: Article
Language:English
Subjects:
Algorithms
Animals
Biomechanical Phenomena
Biomimetics
Bone and Bones - physiology
Equipment Design
Female
Humans
Magnetic Resonance Imaging
Magnetics
Monitoring, Physiologic - instrumentation
Motion
Movement - physiology
Muscle, Skeletal - physiology
Turkeys
Wearable Electronic Devices
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:We live in an era of wearable sensing, where our movement through the world can be continuously monitored by devices. Yet, we lack a portable sensor that can continuously monitor muscle, tendon, and bone motion, allowing us to monitor performance, deliver targeted rehabilitation, and provide intuitive, reflexive control over prostheses and exoskeletons. Here, we introduce a sensing modality, magnetomicrometry, that uses the relative positions of implanted magnetic beads to enable wireless tracking of tissue length changes. We demonstrate real-time muscle length tracking in an in vivo turkey model via chronically implanted magnetic beads while investigating accuracy, biocompatibility, and long-term implant stability. We anticipate that this tool will lay the groundwork for volitional control over wearable robots via real-time tracking of muscle lengths and speeds. Further, to inform future biomimetic control strategies, magnetomicrometry may also be used in the in vivo tracking of biological tissues to elucidate biomechanical principles of animal and human movement.
ISSN:2470-9476
2470-9476
DOI:10.1126/scirobotics.abg0656