{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,8]],"date-time":"2026-06-08T10:00:23Z","timestamp":1780912823385,"version":"3.54.1"},"reference-count":24,"publisher":"MDPI AG","issue":"11","license":[{"start":{"date-parts":[[2023,6,1]],"date-time":"2023-06-01T00:00:00Z","timestamp":1685577600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>This paper presents the development of an instrumented exoskeleton with baropodometry, electromyography, and torque sensors. The six degrees of freedom (Dof) exoskeleton has a human intention detection system based on a classifier of electromyographic signals coming from four sensors placed in the muscles of the lower extremity together with baropodometric signals from four resistive load sensors placed at the front and rear parts of both feet. In addition, the exoskeleton is instrumented with four flexible actuators coupled with torque sensors. The main objective of the paper was the development of a lower limb therapy exoskeleton, articulated at hip and knees to allow the performance of three types of motion depending on the detected user\u2019s intention: sitting to standing, standing to sitting, and standing to walking. In addition, the paper presents the development of a dynamical model and the implementation of a feedback control in the exoskeleton.<\/jats:p>","DOI":"10.3390\/s23115252","type":"journal-article","created":{"date-parts":[[2023,6,1]],"date-time":"2023-06-01T03:06:00Z","timestamp":1685588760000},"page":"5252","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":19,"title":["Lower Limb Exoskeleton for Rehabilitation with Flexible Joints and Movement Routines Commanded by Electromyography and Baropodometry Sensors"],"prefix":"10.3390","volume":"23","author":[{"given":"Yukio","family":"Rosales-Luengas","sequence":"first","affiliation":[{"name":"Centro de Investigaci\u00f3n y de Estudios Avanzados del Instituto Polit\u00e9cnico Nacional (CINVESTAV), Av. 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Biom\u00e9d."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1016\/S1286-935X(09)70892-5","article-title":"Anatom\u00eda y fisiolog\u00eda de la marcha, de la posici\u00f3n sentada y de la bipedestaci\u00f3n","volume":"42","author":"Dujardin","year":"2009","journal-title":"EMC-Apar. Locomot."},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"638","DOI":"10.1093\/ptj\/70.10.638","article-title":"Whole-body movements during rising to standing from sitting","volume":"70","author":"Schenkman","year":"1990","journal-title":"Phys. Ther."},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"1042","DOI":"10.3389\/fnins.2018.01042","article-title":"Visual and Vestibular Inputs Affect Muscle Synergies Responsible for Body Extension and Stabilization in Sit-to-Stand Motion","volume":"12","author":"Yoshida","year":"2019","journal-title":"Front. Neurosci."},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"104496","DOI":"10.1016\/j.conengprac.2020.104496","article-title":"Robust nonsingular fast terminal sliding-mode control for Sit-to-Stand task using a mobile lower limb exoskeleton","volume":"101","author":"Cruz","year":"2020","journal-title":"Control Eng. Pract."},{"key":"ref_6","doi-asserted-by":"crossref","unstructured":"Luciani, B., Braghin, F., Pedrocchi, A., and Gandolla, M. (2023). Technology Acceptance Model for Exoskeletons for Rehabilitation of the Upper Limbs from Therapists\u2019 Perspectives. Sensors, 23.","DOI":"10.3390\/s23031721"},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"3314","DOI":"10.1109\/TBME.2013.2267741","article-title":"Active and Progressive Exoskeleton Rehabilitation Using Multisource Information Fusion From EMG and Force-Position EPP","volume":"60","author":"Fan","year":"2013","journal-title":"IEEE Trans. Biomed. Eng."},{"key":"ref_8","doi-asserted-by":"crossref","unstructured":"Ma, G., Li, M., and Wang, Q. (2016, January 19\u201322). Mechanical design of a whole-arm exoskeleton rehabilitation robot based on PNF. Proceedings of the 2016 13th International Conference On Ubiquitous Robots and Ambient Intelligence (URAI), Xian, China.","DOI":"10.1109\/URAI.2016.7733980"},{"key":"ref_9","doi-asserted-by":"crossref","unstructured":"Pratt, J., Krupp, B., Morse, C., and Collins, S. (May, January 26). The RoboKnee: An exoskeleton for enhancing strength and endurance during walking. Proceedings of the IEEE International Conference on Robotics And Automation, 2004. Proceedings. ICRA \u201904. 2004, New Orleans, LA, USA.","DOI":"10.1109\/ROBOT.2004.1307425"},{"key":"ref_10","doi-asserted-by":"crossref","unstructured":"Tiboni, M., Borboni, A., V\u00e9rit\u00e9, F., Bregoli, C., and Amici, C. (2022). Sensors and Actuation Technologies in Exoskeletons: A Review. Sensors, 22.","DOI":"10.3390\/s22030884"},{"key":"ref_11","doi-asserted-by":"crossref","unstructured":"Herron, C.W., Fuge, Z.J., Kogelis, M., Tremaroli, N.J., Kalita, B., and Leonessa, A. (2023). Design and Validation of a Low-Level Controller for Hierarchically Controlled Exoskeletons. Sensors, 23.","DOI":"10.3390\/s23021014"},{"key":"ref_12","unstructured":"Aissaoui, R., and Dansereau, J. (1999, January 12\u201315). Biomechanical analysis and modelling of sit to stand task: A literature review. Proceedings of the IEEE SMC\u201999 Conference Proceedings. 1999 IEEE International Conference On Systems, Man, And Cybernetics (Cat. No.99CH37028), Tokyo, Japan."},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"404","DOI":"10.1126\/scitranslmed.aam9145","article-title":"A lower-extremity exoskeleton improves knee extension in children with crouch gait from cerebral palsy","volume":"9","author":"Lerner","year":"2017","journal-title":"Sci. Transl. Med."},{"key":"ref_14","first-page":"3679174:1","article-title":"sEMG Based Human Motion Intention Recognition","volume":"2019","author":"Zhang","year":"2019","journal-title":"J. Robot."},{"key":"ref_15","unstructured":"Moore, K., Agur, A., and Dalley, A. (2013). Fundamentos de Anatom\u00eda con Orientaci\u00f3n Cl\u00ednica, Wolters Kluwer. [7th ed.]."},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"1650005:1","DOI":"10.1142\/S0219843616500055","article-title":"A Subject-Specific EMG-Driven Musculoskeletal Model for Applications in Lower-Limb Rehabilitation Robotics","volume":"13","author":"Ai","year":"2016","journal-title":"Int. J. Humanoid Robot."},{"key":"ref_17","doi-asserted-by":"crossref","first-page":"98","DOI":"10.1016\/j.robot.2018.11.011","article-title":"Feasibility of an optimal EMG-driven adaptive impedance control applied to an active knee orthosis","volume":"112","author":"Consoni","year":"2019","journal-title":"Robot. Auton. Syst."},{"key":"ref_18","doi-asserted-by":"crossref","unstructured":"Shen, H., Song, Q., Deng, X., Zhao, Y., Yu, Y., and Ge, Y. (2007, January 15\u201318). Recognition of phases in sit-to-stand motion by Neural Network Ensemble (NNE) for power assist robot. Proceedings of the 2007 IEEE International Conference on Robotics And Biomimetics (ROBIO), Sanya, China.","DOI":"10.1109\/ROBIO.2007.4522422"},{"key":"ref_19","doi-asserted-by":"crossref","first-page":"656","DOI":"10.1093\/ptj\/71.9.656","article-title":"Normal hip and knee active range of motion: The relationship to age","volume":"71","author":"Roach","year":"1991","journal-title":"Phys. Ther."},{"key":"ref_20","unstructured":"Sandoval-Gonzalez, O., Aguilar-Serena, R., Rosa, D., Aguilar, I., and Gonz\u00e1lez-S\u00e1nchez, B. (2013, January 23\u201325). Dise\u00f1o de un sistema de adquisici\u00f3n de se\u00f1ales electromiogr\u00e1ficas inal\u00e1mbrico. Proceedings of the Congreso Internacional Sobre Innovaci\u00f3n y Desarrollo Tecnol\u00f3gico, Cuernavaca, Mexico."},{"key":"ref_21","doi-asserted-by":"crossref","first-page":"98","DOI":"10.2174\/1874943701003010098","article-title":"Technical Aspects of Surface Electromyography for Clinicians","volume":"3","author":"Merlo","year":"2010","journal-title":"Open Rehabil. J."},{"key":"ref_22","first-page":"17","article-title":"Surface electromyography: Why, when and how to use it","volume":"4","author":"Vieira","year":"2011","journal-title":"Rev. Andal. Med. Del Deporte"},{"key":"ref_23","doi-asserted-by":"crossref","unstructured":"Tan, L., and Jiang, J. (2019). Signal \u201cSampling and Quantization\u201d, Elsevier. [3rd ed.].","DOI":"10.1016\/B978-0-12-815071-9.00002-6"},{"key":"ref_24","first-page":"701","article-title":"Modeling and control of robot manipulators by L Sciavicco and B Siciliano","volume":"16","author":"Pham","year":"1998","journal-title":"Robotica"}],"container-title":["Sensors"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/1424-8220\/23\/11\/5252\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,10]],"date-time":"2025-10-10T19:46:55Z","timestamp":1760125615000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/1424-8220\/23\/11\/5252"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2023,6,1]]},"references-count":24,"journal-issue":{"issue":"11","published-online":{"date-parts":[[2023,6]]}},"alternative-id":["s23115252"],"URL":"https:\/\/doi.org\/10.3390\/s23115252","relation":{},"ISSN":["1424-8220"],"issn-type":[{"value":"1424-8220","type":"electronic"}],"subject":[],"published":{"date-parts":[[2023,6,1]]}}}