Ankle Mechanical Impedance Under Muscle Fatigue
This paper reports preliminary results on the effects of ankle muscle fatigue on ankle mechanical impedance. The experiment was designed to induce fatigue in the Tibialis Anterior and Triceps Surae muscle group by asking subjects to perform isometric contractions against a constant ankle torque gene...
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| Format: | Article |
| Language: | en_US |
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ASME International
2017
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| Online Access: | http://hdl.handle.net/1721.1/107229 https://orcid.org/0000-0003-0005-3519 https://orcid.org/0000-0001-5366-2145 |
| _version_ | 1811082386765512704 |
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| author | Wang, Shuo Lee, Hyunglae Hogan, Neville |
| author2 | Massachusetts Institute of Technology. Department of Brain and Cognitive Sciences |
| author_facet | Massachusetts Institute of Technology. Department of Brain and Cognitive Sciences Wang, Shuo Lee, Hyunglae Hogan, Neville |
| author_sort | Wang, Shuo |
| collection | MIT |
| description | This paper reports preliminary results on the effects of ankle muscle fatigue on ankle mechanical impedance. The experiment was designed to induce fatigue in the Tibialis Anterior and Triceps Surae muscle group by asking subjects to perform isometric contractions against a constant ankle torque generated by the Anklebot, a backdriveable robot that interacts with the ankle in two degrees of freedom. Median frequencies of surface electromyographic signals collected from Tibialis Anterior and Triceps Surae muscle group were evaluated to assess muscle fatigue. Using a standard multi-input and multi-output stochastic impedance identification method, multivariable ankle mechanical impedance was measured in two degrees of freedom under muscle fatigue. Preliminary results indicate that, for both Tibialis Anterior and Triceps Surae muscle group, ankle mechanical impedance decreases in both the dorsi-plantarflexion and inversion-eversion directions under muscle fatigue. This finding suggests that decreasing ankle impedance with muscle fatigue may help to develop joint support systems to prevent ankle injuries caused by muscle fatigue. |
| first_indexed | 2024-09-23T12:01:57Z |
| format | Article |
| id | mit-1721.1/107229 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T12:01:57Z |
| publishDate | 2017 |
| publisher | ASME International |
| record_format | dspace |
| spelling | mit-1721.1/1072292022-10-01T07:45:21Z Ankle Mechanical Impedance Under Muscle Fatigue Wang, Shuo Lee, Hyunglae Hogan, Neville Massachusetts Institute of Technology. Department of Brain and Cognitive Sciences Massachusetts Institute of Technology. Department of Mechanical Engineering Wang, Shuo Lee, Hyunglae Hogan, Neville This paper reports preliminary results on the effects of ankle muscle fatigue on ankle mechanical impedance. The experiment was designed to induce fatigue in the Tibialis Anterior and Triceps Surae muscle group by asking subjects to perform isometric contractions against a constant ankle torque generated by the Anklebot, a backdriveable robot that interacts with the ankle in two degrees of freedom. Median frequencies of surface electromyographic signals collected from Tibialis Anterior and Triceps Surae muscle group were evaluated to assess muscle fatigue. Using a standard multi-input and multi-output stochastic impedance identification method, multivariable ankle mechanical impedance was measured in two degrees of freedom under muscle fatigue. Preliminary results indicate that, for both Tibialis Anterior and Triceps Surae muscle group, ankle mechanical impedance decreases in both the dorsi-plantarflexion and inversion-eversion directions under muscle fatigue. This finding suggests that decreasing ankle impedance with muscle fatigue may help to develop joint support systems to prevent ankle injuries caused by muscle fatigue. United States. Defense Advanced Research Projects Agency (Warrior Web Program BAA-11-72) Samsung Scholarship Foundation 2017-03-07T21:11:28Z 2017-03-07T21:11:28Z 2013-10 Article http://purl.org/eprint/type/ConferencePaper 978-0-7918-5614-7 http://hdl.handle.net/1721.1/107229 Wang, Shuo, Hyunglae Lee, and Neville Hogan. “Ankle Mechanical Impedance Under Muscle Fatigue.” ASME, 2013. V003T43A006. © 2013 by ASME https://orcid.org/0000-0003-0005-3519 https://orcid.org/0000-0001-5366-2145 en_US http://dx.doi.org/10.1115/DSCC2013-4060 Proceedings of the ASME 2013 Dynamic Systems and Control Conference Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf ASME International American Society of Mechanical Engineers (ASME) |
| spellingShingle | Wang, Shuo Lee, Hyunglae Hogan, Neville Ankle Mechanical Impedance Under Muscle Fatigue |
| title | Ankle Mechanical Impedance Under Muscle Fatigue |
| title_full | Ankle Mechanical Impedance Under Muscle Fatigue |
| title_fullStr | Ankle Mechanical Impedance Under Muscle Fatigue |
| title_full_unstemmed | Ankle Mechanical Impedance Under Muscle Fatigue |
| title_short | Ankle Mechanical Impedance Under Muscle Fatigue |
| title_sort | ankle mechanical impedance under muscle fatigue |
| url | http://hdl.handle.net/1721.1/107229 https://orcid.org/0000-0003-0005-3519 https://orcid.org/0000-0001-5366-2145 |
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