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Based on a 1-DOF rehabilitation robot, three experiment paradigms involving motor imagery (MI), action observation of motor imagery (AO-MI) and motor execution are designed using both electroencephalography (EEG) and electromyography (EMG). To enhance motion intention recognition accuracy, a Gumbel-ResNet-KANs decoding model is established. The Gumbel-ResNet-KANs model integrates the Gumbel-Softmax method with the ResNet-KANs network module and demonstrates strong decoding capability, as demonstrated by comparative tests in this paper. To validate the effect of robotic assistance, EEG and EMG coherence are analyzed to assess the impact of robotic assistance on rehabilitation from a neuromuscular perspective in both assisted and unassisted conditions. We assessed the effect of robotics on rehabilitation from an emotional perspective by analyzing the difference between the differential entropy of the right and left brain. The proposed study also reveals that the movement-related cortical potentials in AO-MI are beneficial for promoting the performance of BMI in sit-to-stand training, which provides a possible approach for the development of new types of robots for lower limb rehabilitation.<\/jats:p>","DOI":"10.1017\/s0263574725101781","type":"journal-article","created":{"date-parts":[[2025,7,11]],"date-time":"2025-07-11T07:20:44Z","timestamp":1752218444000},"page":"2644-2673","source":"Crossref","is-referenced-by-count":1,"title":["Brain-machine interaction and assist effect evaluation of a single-degree-of-freedom sit-to-stand transfer robot"],"prefix":"10.1017","volume":"43","author":[{"given":"Chengyu","family":"Hou","sequence":"first","affiliation":[{"name":"Southwest Jiaotong University"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Qian","family":"Chen","sequence":"additional","affiliation":[{"name":"Southwest Jiaotong University"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5673-2134","authenticated-orcid":false,"given":"Peng","family":"Chen","sequence":"additional","affiliation":[{"name":"Southwest Jiaotong University"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Xiangyun","family":"Li","sequence":"additional","affiliation":[{"name":"Sichuan University"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Kang","family":"Li","sequence":"additional","affiliation":[{"name":"Sichuan University"},{"name":"West China PITEC Co., Ltd."}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"56","published-online":{"date-parts":[[2025,7,11]]},"reference":[{"key":"S0263574725101781_ref8","doi-asserted-by":"publisher","DOI":"10.1186\/s12877-023-04423-x"},{"key":"S0263574725101781_ref34","doi-asserted-by":"publisher","DOI":"10.1109\/JSEN.2020.3005968"},{"key":"S0263574725101781_ref25","doi-asserted-by":"publisher","DOI":"10.1155\/2021\/9972560"},{"key":"S0263574725101781_ref43","doi-asserted-by":"publisher","DOI":"10.1088\/1741-2552\/abc902"},{"key":"S0263574725101781_ref44","doi-asserted-by":"publisher","DOI":"10.1088\/1741-2552\/ab0ab5"},{"key":"S0263574725101781_ref10","doi-asserted-by":"publisher","DOI":"10.3389\/fneur.2023.1255620"},{"key":"S0263574725101781_ref47","doi-asserted-by":"publisher","DOI":"10.1016\/j.artmed.2023.102545"},{"key":"S0263574725101781_ref68","doi-asserted-by":"publisher","DOI":"10.1371\/journal.pone.0087987"},{"key":"S0263574725101781_ref17","doi-asserted-by":"publisher","DOI":"10.1177\/15459683221119761"},{"key":"S0263574725101781_ref39","first-page":"376","article-title":"Sitting and standing intention can be decoded from scalp eeg recorded prior to movement execution","volume":"8","author":"Bulea","year":"2014","journal-title":"Front. 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