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Various scenarios were considered, encompassing imbalance in individual muscles and muscle pairs, as well as accounting for asymmetry in lumped element parameters. Measurements of amplitude and phase asymmetries were employed to match the oscillatory behavior of two pathological cases: unilateral paralysis and muscle tension dysphonia. The resulting simulations exhibit muscle imbalance consistent with expectations in the composition of these voice disorders, yielding asymmetries exceeding 30% for paralysis and below 5% for dysphonia. This underscores the relevance of muscle imbalance in representing phonatory scenarios and its potential for characterizing asymmetry in vocal fold vibration.<\/jats:p>","DOI":"10.1121\/10.0028164","type":"journal-article","created":{"date-parts":[[2024,8,12]],"date-time":"2024-08-12T11:37:00Z","timestamp":1723462620000},"page":"939-953","update-policy":"https:\/\/doi.org\/10.1063\/aip-crossmark-policy-page","source":"Crossref","is-referenced-by-count":7,"title":["Asymmetric triangular body-cover model of the vocal folds with bilateral intrinsic muscle activation"],"prefix":"10.1121","volume":"156","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-9657-6183","authenticated-orcid":false,"given":"Jes\u00fas A.","family":"Parra","sequence":"first","affiliation":[{"name":"Department of Electronic Engineering, Universidad T\u00e9cnica Federico Santa Maria 1 , Valpara\u00edso, Chile"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5403-1852","authenticated-orcid":false,"given":"Carlos","family":"Calvache","sequence":"additional","affiliation":[{"name":"Department of Mechatronics Engineering 2 , Universidad Militar, Bogota, Colombia"},{"name":"Department Communication Sciences and Disorders, Corporaci\u00f3n Universitaria Iberoamericana 3 , Bogot\u00e1, Colombia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9737-8277","authenticated-orcid":false,"given":"Gabriel A.","family":"Alzamendi","sequence":"additional","affiliation":[{"name":"Institute for Research and Development on Bioengineering and Bioinformatics, Consejo Nacional de Investigaciones Cient\u00edficas y T\u00e9cnicas, Universidad Nacional de Entre R\u00edos 4 , Oro Verde, Entre R\u00edos, Argentina"},{"name":"Facultad de Ingenier\u00eda, Universidad Nacional de Entre R\u00edos, 5 Entre R\u00edos, Argentina"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6975-4247","authenticated-orcid":false,"given":"Emiro J.","family":"Ibarra","sequence":"additional","affiliation":[{"name":"Department of Electronic Engineering, Universidad T\u00e9cnica Federico Santa Maria 1 , Valpara\u00edso, Chile"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2773-1028","authenticated-orcid":false,"given":"Leonardo","family":"Sol\u00e1que","sequence":"additional","affiliation":[{"name":"Department of Mechatronics Engineering 2 , Universidad Militar, Bogota, Colombia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8746-2491","authenticated-orcid":false,"given":"Sean D.","family":"Peterson","sequence":"additional","affiliation":[{"name":"Department of Mechanical and Mechatronics Engineering, University of Waterloo 6 , Waterloo, Ontario, Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5581-4392","authenticated-orcid":false,"given":"Mat\u00edas","family":"Za\u00f1artu","sequence":"additional","affiliation":[{"name":"Department of Electronic Engineering, Universidad T\u00e9cnica Federico Santa Maria 1 , Valpara\u00edso, Chile"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"231","published-online":{"date-parts":[[2024,8,12]]},"reference":[{"issue":"1","key":"2024081215365593900_c1","doi-asserted-by":"publisher","first-page":"17","DOI":"10.1121\/10.0009169","article-title":"Triangular body-cover model of the vocal folds with coordinated activation of the five intrinsic laryngeal muscles","volume":"151","year":"2022","journal-title":"J. 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