Untethered muscle tracking using magnetomicrometry
Author(s)
Taylor, Cameron R; Yeon, Seong Ho; Clark, William H; Clarrissimeaux, Ellen G; O’Donnell, Mary Kate; Roberts, Thomas J; Herr, Hugh M; ... Show more Show less
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<jats:p>Muscle tissue drives nearly all movement in the animal kingdom, providing power, mobility, and dexterity. Technologies for measuring muscle tissue motion, such as sonomicrometry, fluoromicrometry, and ultrasound, have significantly advanced our understanding of biomechanics. Yet, the field lacks the ability to monitor muscle tissue motion for animal behavior outside the lab. Towards addressing this issue, we previously introduced magnetomicrometry, a method that uses magnetic beads to wirelessly monitor muscle tissue length changes, and we validated magnetomicrometry <jats:italic>via</jats:italic> tightly-controlled <jats:italic>in situ</jats:italic> testing. In this study we validate the accuracy of magnetomicrometry against fluoromicrometry during untethered running in an <jats:italic>in vivo</jats:italic> turkey model. We demonstrate real-time muscle tissue length tracking of the freely-moving turkeys executing various motor activities, including ramp ascent and descent, vertical ascent and descent, and free roaming movement. Given the demonstrated capacity of magnetomicrometry to track muscle movement in untethered animals, we feel that this technique will enable new scientific explorations and an improved understanding of muscle function.</jats:p>
Date issued
2022Department
Massachusetts Institute of Technology. Media LaboratoryJournal
Frontiers in Bioengineering and Biotechnology
Publisher
Frontiers Media SA
Citation
Taylor, Cameron R, Yeon, Seong Ho, Clark, William H, Clarrissimeaux, Ellen G, O’Donnell, Mary Kate et al. 2022. "Untethered muscle tracking using magnetomicrometry." Frontiers in Bioengineering and Biotechnology, 10.
Version: Final published version