{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,8,2]],"date-time":"2025-08-02T17:24:17Z","timestamp":1754155457487,"version":"3.41.2"},"reference-count":42,"publisher":"Emerald","issue":"4","license":[{"start":{"date-parts":[[2021,8,25]],"date-time":"2021-08-25T00:00:00Z","timestamp":1629849600000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.emerald.com\/insight\/site-policies"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["IR"],"published-print":{"date-parts":[[2022,6,1]]},"abstract":"<jats:sec>\n<jats:title content-type=\"abstract-subheading\">Purpose<\/jats:title>\n<jats:p>The purpose of this paper is to evaluate three categories of four-degrees of freedom (4-DOFs) upper limb rehabilitation exoskeleton mechanisms from the perspective of relative movement offsets between the upper limb and the exoskeleton, so as to provide reference for the selection of exoskeleton mechanism configurations.<\/jats:p>\n<\/jats:sec>\n<jats:sec>\n<jats:title content-type=\"abstract-subheading\">Design\/methodology\/approach<\/jats:title>\n<jats:p>According to the configuration synthesis and optimum principles of 4-DOFs upper limb exoskeleton mechanisms, three categories of exoskeletons compatible with upper limb were proposed. From the perspective of human exoskeleton closed chain, through reasonable decomposition and kinematic characteristics analysis of passive connective joints, the kinematic equations of three categories exoskeletons were established and inverse position solution method were addressed. Subsequently, three indexes, which can represent the relative movement offsets of human\u2013exoskeleton were defined.<\/jats:p>\n<\/jats:sec>\n<jats:sec>\n<jats:title content-type=\"abstract-subheading\">Findings<\/jats:title>\n<jats:p>Based on the presented position solution and evaluation indexes, the joint displacements and relative movement offsets of the three exoskeletons during eating movement were compared, on which the kinematic characteristics were investigated. The results indicated that the second category of exoskeleton was more suitable for upper limb rehabilitation than the other two categories.<\/jats:p>\n<\/jats:sec>\n<jats:sec>\n<jats:title content-type=\"abstract-subheading\">Originality\/value<\/jats:title>\n<jats:p>This paper has a certain reference value for the selection of the 4-DOFs upper extremity rehabilitation exoskeleton mechanism configurations. The selected exoskeleton can ensure the safety and comfort of stroke patients with upper limb dyskinesia during rehabilitation training.<\/jats:p>\n<\/jats:sec>","DOI":"10.1108\/ir-12-2020-0273","type":"journal-article","created":{"date-parts":[[2021,8,24]],"date-time":"2021-08-24T01:45:58Z","timestamp":1629769558000},"page":"672-687","source":"Crossref","is-referenced-by-count":4,"title":["Comparative analysis of three categories of four-DOFs exoskeleton mechanism based on relative movement offsets"],"prefix":"10.1108","volume":"49","author":[{"given":"Qiang","family":"Cao","sequence":"first","affiliation":[]},{"given":"Jianfeng","family":"Li","sequence":"additional","affiliation":[]},{"given":"Mingjie","family":"Dong","sequence":"additional","affiliation":[]}],"member":"140","published-online":{"date-parts":[[2021,8,25]]},"reference":[{"first-page":"506","article-title":"Adaptive fuzzy sliding mode controller design for a new hand rehabilitation 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