Summary of Human Ankle Mechanical Impedance During Walking
The human ankle joint plays a critical role during walking and understanding the biomechanical factors that govern ankle behavior and provides fundamental insight into normal and pathologically altered gait. Previous researchers have comprehensively studied ankle joint kinetics and kinematics during...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
IEEE
2016-01-01
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| Series: | IEEE Journal of Translational Engineering in Health and Medicine |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/7547952/ |
| _version_ | 1818927880190558208 |
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| author | Hyunglae Lee Elliott J. Rouse Hermano Igo Krebs |
| author_facet | Hyunglae Lee Elliott J. Rouse Hermano Igo Krebs |
| author_sort | Hyunglae Lee |
| collection | DOAJ |
| description | The human ankle joint plays a critical role during walking and understanding the biomechanical factors that govern ankle behavior and provides fundamental insight into normal and pathologically altered gait. Previous researchers have comprehensively studied ankle joint kinetics and kinematics during many biomechanical tasks, including locomotion; however, only recently have researchers been able to quantify how the mechanical impedance of the ankle varies during walking. The mechanical impedance describes the dynamic relationship between the joint position and the joint torque during perturbation, and is often represented in terms of stiffness, damping, and inertia. The purpose of this short communication is to unify the results of the first two studies measuring ankle mechanical impedance in the sagittal plane during walking, where each study investigated differing regions of the gait cycle. Rouse et al. measured ankle impedance from late loading response to terminal stance, where Lee et al. quantified ankle impedance from pre-swing to early loading response. While stiffness component of impedance increases significantly as the stance phase of walking progressed, the change in damping during the gait cycle is much less than the changes observed in stiffness. In addition, both stiffness and damping remained low during the swing phase of walking. Future work will focus on quantifying impedance during the “push off” region of stance phase, as well as measurement of these properties in the coronal plane. |
| first_indexed | 2024-12-20T03:20:02Z |
| format | Article |
| id | doaj.art-854d993cedaa4aa7ba44f32ac0691ce1 |
| institution | Directory Open Access Journal |
| issn | 2168-2372 |
| language | English |
| last_indexed | 2024-12-20T03:20:02Z |
| publishDate | 2016-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Journal of Translational Engineering in Health and Medicine |
| spelling | doaj.art-854d993cedaa4aa7ba44f32ac0691ce12022-12-21T19:55:14ZengIEEEIEEE Journal of Translational Engineering in Health and Medicine2168-23722016-01-0141710.1109/JTEHM.2016.26016137547952Summary of Human Ankle Mechanical Impedance During WalkingHyunglae Lee0https://orcid.org/0000-0003-3853-510XElliott J. Rouse1Hermano Igo Krebs2School for Engineering of Matter, Transport, and Energy, Arizona State University, Tempe, AZ, USADepartment of Mechanical Engineering and Department of Biomedical Engineering, Northwestern University, Evanston, IL, USADepartment of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA, USAThe human ankle joint plays a critical role during walking and understanding the biomechanical factors that govern ankle behavior and provides fundamental insight into normal and pathologically altered gait. Previous researchers have comprehensively studied ankle joint kinetics and kinematics during many biomechanical tasks, including locomotion; however, only recently have researchers been able to quantify how the mechanical impedance of the ankle varies during walking. The mechanical impedance describes the dynamic relationship between the joint position and the joint torque during perturbation, and is often represented in terms of stiffness, damping, and inertia. The purpose of this short communication is to unify the results of the first two studies measuring ankle mechanical impedance in the sagittal plane during walking, where each study investigated differing regions of the gait cycle. Rouse et al. measured ankle impedance from late loading response to terminal stance, where Lee et al. quantified ankle impedance from pre-swing to early loading response. While stiffness component of impedance increases significantly as the stance phase of walking progressed, the change in damping during the gait cycle is much less than the changes observed in stiffness. In addition, both stiffness and damping remained low during the swing phase of walking. Future work will focus on quantifying impedance during the “push off” region of stance phase, as well as measurement of these properties in the coronal plane.https://ieeexplore.ieee.org/document/7547952/Human ankleankle impedanceankle stiffnessankle damping |
| spellingShingle | Hyunglae Lee Elliott J. Rouse Hermano Igo Krebs Summary of Human Ankle Mechanical Impedance During Walking IEEE Journal of Translational Engineering in Health and Medicine Human ankle ankle impedance ankle stiffness ankle damping |
| title | Summary of Human Ankle Mechanical Impedance During Walking |
| title_full | Summary of Human Ankle Mechanical Impedance During Walking |
| title_fullStr | Summary of Human Ankle Mechanical Impedance During Walking |
| title_full_unstemmed | Summary of Human Ankle Mechanical Impedance During Walking |
| title_short | Summary of Human Ankle Mechanical Impedance During Walking |
| title_sort | summary of human ankle mechanical impedance during walking |
| topic | Human ankle ankle impedance ankle stiffness ankle damping |
| url | https://ieeexplore.ieee.org/document/7547952/ |
| work_keys_str_mv | AT hyunglaelee summaryofhumananklemechanicalimpedanceduringwalking AT elliottjrouse summaryofhumananklemechanicalimpedanceduringwalking AT hermanoigokrebs summaryofhumananklemechanicalimpedanceduringwalking |