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This fact results in a continuous degeneration and dysfunction of articular soft tissues. Specifically, cartilage is an avascular and nonneural connective tissue that allows smooth motion in diarthrodial joints. Due to the avascular nature of cartilage tissue, cells nutrition and by-product exchange are intermittently occurring during joint motions. Reduced mobility results in a change of proteoglycan density, osmotic pressure, and permeability of the tissue. This work aims to demonstrate the abnormal cartilage deformation in progressive immobilized articular cartilage for ALS patients. For this aim a novel 3D mechano-electrochemical model based on the triphasic theory for charged hydrated soft tissues is developed. ALS patient parameters such as tissue porosity, osmotic coefficient, and fixed anions were incorporated. Considering different mobility reduction of each phase of the disease, results predicted the degree of tissue degeneration and the reduction of its capacity for deformation. The present model can be a useful tool to predict the evolution of joints in ALS patients and the necessity of including specific cartilage protectors, drugs, or maintenance physical activities as part of the symptomatic treatment in amyotrophic lateral sclerosis.<\/jats:p>","DOI":"10.1155\/2014\/179070","type":"journal-article","created":{"date-parts":[[2014,6,3]],"date-time":"2014-06-03T21:02:07Z","timestamp":1401829327000},"page":"1-13","source":"Crossref","is-referenced-by-count":7,"title":["Cartilage Dysfunction in ALS Patients as Side Effect of Motion Loss: 3D Mechano-Electrochemical Computational Model"],"prefix":"10.1155","volume":"2014","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-6305-9283","authenticated-orcid":true,"given":"Sara","family":"Manzano","sequence":"first","affiliation":[{"name":"Group of Structural Mechanics and Materials Modelling (GEMM), Arag\u00f3n Institute of Engineering Research (I3A), University of Zaragoza, 50018 Zaragoza, 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