{"id":"https://openalex.org/W4327952021","doi":"https://doi.org/10.3390/robotics12020044","title":"Estimation of Knee Assistive Moment in a Gait Cycle Using Knee Angle and Knee Angular Velocity through Machine Learning and Artificial Stiffness Control Strategy (MLASCS)","display_name":"Estimation of Knee Assistive Moment in a Gait Cycle Using Knee Angle and Knee Angular Velocity through Machine Learning and Artificial Stiffness Control Strategy (MLASCS)","publication_year":2023,"publication_date":"2023-03-17","ids":{"openalex":"https://openalex.org/W4327952021","doi":"https://doi.org/10.3390/robotics12020044"},"language":"en","primary_location":{"id":"doi:10.3390/robotics12020044","is_oa":true,"landing_page_url":"https://doi.org/10.3390/robotics12020044","pdf_url":"https://www.mdpi.com/2218-6581/12/2/44/pdf?version=1679067151","source":{"id":"https://openalex.org/S4210232487","display_name":"Robotics","issn_l":"2218-6581","issn":["2218-6581"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Robotics","raw_type":"journal-article"},"type":"article","indexed_in":["crossref","doaj"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://www.mdpi.com/2218-6581/12/2/44/pdf?version=1679067151","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5086288866","display_name":"Khemwutta Pornpipatsakul","orcid":null},"institutions":[{"id":"https://openalex.org/I158708052","display_name":"Chulalongkorn University","ror":"https://ror.org/028wp3y58","country_code":"TH","type":"education","lineage":["https://openalex.org/I158708052"]}],"countries":["TH"],"is_corresponding":false,"raw_author_name":"Khemwutta Pornpipatsakul","raw_affiliation_strings":["Department of Mechanical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand"],"affiliations":[{"raw_affiliation_string":"Department of Mechanical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand","institution_ids":["https://openalex.org/I158708052"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5065753192","display_name":"Nopdanai Ajavakom","orcid":null},"institutions":[{"id":"https://openalex.org/I158708052","display_name":"Chulalongkorn University","ror":"https://ror.org/028wp3y58","country_code":"TH","type":"education","lineage":["https://openalex.org/I158708052"]}],"countries":["TH"],"is_corresponding":true,"raw_author_name":"Nopdanai Ajavakom","raw_affiliation_strings":["Department of Mechanical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand"],"affiliations":[{"raw_affiliation_string":"Department of Mechanical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand","institution_ids":["https://openalex.org/I158708052"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5065753192"],"corresponding_institution_ids":["https://openalex.org/I158708052"],"apc_list":{"value":1600,"currency":"CHF","value_usd":1732},"apc_paid":{"value":1600,"currency":"CHF","value_usd":1732},"fwci":1.1238,"has_fulltext":false,"cited_by_count":10,"citation_normalized_percentile":{"value":0.74422583,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":98},"biblio":{"volume":"12","issue":"2","first_page":"44","last_page":"44"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11023","display_name":"Prosthetics and Rehabilitation Robotics","score":0.9998999834060669,"subfield":{"id":"https://openalex.org/subfields/2204","display_name":"Biomedical Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T11023","display_name":"Prosthetics and Rehabilitation Robotics","score":0.9998999834060669,"subfield":{"id":"https://openalex.org/subfields/2204","display_name":"Biomedical Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10784","display_name":"Muscle activation and electromyography studies","score":0.9995999932289124,"subfield":{"id":"https://openalex.org/subfields/2204","display_name":"Biomedical Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10562","display_name":"Total Knee Arthroplasty Outcomes","score":0.9873999953269958,"subfield":{"id":"https://openalex.org/subfields/2746","display_name":"Surgery"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/gait","display_name":"Gait","score":0.6606925129890442},{"id":"https://openalex.org/keywords/moment","display_name":"Moment (physics)","score":0.601078450679779},{"id":"https://openalex.org/keywords/actuator","display_name":"Actuator","score":0.5861157178878784},{"id":"https://openalex.org/keywords/stiffness","display_name":"Stiffness","score":0.5810521245002747},{"id":"https://openalex.org/keywords/gait-cycle","display_name":"Gait cycle","score":0.5647493600845337},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.48584243655204773},{"id":"https://openalex.org/keywords/angular-velocity","display_name":"Angular velocity","score":0.45385676622390747},{"id":"https://openalex.org/keywords/simulation","display_name":"Simulation","score":0.4459567070007324},{"id":"https://openalex.org/keywords/knee-joint","display_name":"Knee Joint","score":0.4434434175491333},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.4431363046169281},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.3760758638381958},{"id":"https://openalex.org/keywords/control-theory","display_name":"Control theory (sociology)","score":0.3516097664833069},{"id":"https://openalex.org/keywords/control","display_name":"Control (management)","score":0.2971310615539551},{"id":"https://openalex.org/keywords/physical-medicine-and-rehabilitation","display_name":"Physical medicine and rehabilitation","score":0.2528574466705322},{"id":"https://openalex.org/keywords/structural-engineering","display_name":"Structural engineering","score":0.12377586960792542},{"id":"https://openalex.org/keywords/medicine","display_name":"Medicine","score":0.11426040530204773},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.09044742584228516}],"concepts":[{"id":"https://openalex.org/C151800584","wikidata":"https://www.wikidata.org/wiki/Q2370000","display_name":"Gait","level":2,"score":0.6606925129890442},{"id":"https://openalex.org/C179254644","wikidata":"https://www.wikidata.org/wiki/Q13222844","display_name":"Moment (physics)","level":2,"score":0.601078450679779},{"id":"https://openalex.org/C172707124","wikidata":"https://www.wikidata.org/wiki/Q423488","display_name":"Actuator","level":2,"score":0.5861157178878784},{"id":"https://openalex.org/C2779372316","wikidata":"https://www.wikidata.org/wiki/Q569057","display_name":"Stiffness","level":2,"score":0.5810521245002747},{"id":"https://openalex.org/C2985215115","wikidata":"https://www.wikidata.org/wiki/Q22305006","display_name":"Gait cycle","level":3,"score":0.5647493600845337},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.48584243655204773},{"id":"https://openalex.org/C5594486","wikidata":"https://www.wikidata.org/wiki/Q161635","display_name":"Angular velocity","level":2,"score":0.45385676622390747},{"id":"https://openalex.org/C44154836","wikidata":"https://www.wikidata.org/wiki/Q45045","display_name":"Simulation","level":1,"score":0.4459567070007324},{"id":"https://openalex.org/C2908736133","wikidata":"https://www.wikidata.org/wiki/Q37425","display_name":"Knee Joint","level":2,"score":0.4434434175491333},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.4431363046169281},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.3760758638381958},{"id":"https://openalex.org/C47446073","wikidata":"https://www.wikidata.org/wiki/Q5165890","display_name":"Control theory (sociology)","level":3,"score":0.3516097664833069},{"id":"https://openalex.org/C2775924081","wikidata":"https://www.wikidata.org/wiki/Q55608371","display_name":"Control (management)","level":2,"score":0.2971310615539551},{"id":"https://openalex.org/C99508421","wikidata":"https://www.wikidata.org/wiki/Q2678675","display_name":"Physical medicine and rehabilitation","level":1,"score":0.2528574466705322},{"id":"https://openalex.org/C66938386","wikidata":"https://www.wikidata.org/wiki/Q633538","display_name":"Structural engineering","level":1,"score":0.12377586960792542},{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.11426040530204773},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.09044742584228516},{"id":"https://openalex.org/C74650414","wikidata":"https://www.wikidata.org/wiki/Q11397","display_name":"Classical mechanics","level":1,"score":0.0},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.0},{"id":"https://openalex.org/C141071460","wikidata":"https://www.wikidata.org/wiki/Q40821","display_name":"Surgery","level":1,"score":0.0},{"id":"https://openalex.org/C39920418","wikidata":"https://www.wikidata.org/wiki/Q11476","display_name":"Kinematics","level":2,"score":0.0}],"mesh":[],"locations_count":3,"locations":[{"id":"doi:10.3390/robotics12020044","is_oa":true,"landing_page_url":"https://doi.org/10.3390/robotics12020044","pdf_url":"https://www.mdpi.com/2218-6581/12/2/44/pdf?version=1679067151","source":{"id":"https://openalex.org/S4210232487","display_name":"Robotics","issn_l":"2218-6581","issn":["2218-6581"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Robotics","raw_type":"journal-article"},{"id":"pmh:oai:doaj.org/article:1a78e7d3cc224af594ed060a5ab27153","is_oa":true,"landing_page_url":"https://doaj.org/article/1a78e7d3cc224af594ed060a5ab27153","pdf_url":null,"source":{"id":"https://openalex.org/S112646816","display_name":"SHILAP Revista de lepidopterolog\u00eda","issn_l":"0300-5267","issn":["0300-5267","2340-4078"],"is_oa":true,"is_in_doaj":true,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Robotics, Vol 12, Iss 2, p 44 (2023)","raw_type":"article"},{"id":"pmh:oai:mdpi.com:/2218-6581/12/2/44/","is_oa":true,"landing_page_url":"https://dx.doi.org/10.3390/robotics12020044","pdf_url":null,"source":{"id":"https://openalex.org/S4306400947","display_name":"MDPI (MDPI AG)","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I4210097602","host_organization_name":"Multidisciplinary Digital Publishing Institute (Switzerland)","host_organization_lineage":["https://openalex.org/I4210097602"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Robotics; Volume 12; Issue 2; Pages: 44","raw_type":"Text"}],"best_oa_location":{"id":"doi:10.3390/robotics12020044","is_oa":true,"landing_page_url":"https://doi.org/10.3390/robotics12020044","pdf_url":"https://www.mdpi.com/2218-6581/12/2/44/pdf?version=1679067151","source":{"id":"https://openalex.org/S4210232487","display_name":"Robotics","issn_l":"2218-6581","issn":["2218-6581"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Robotics","raw_type":"journal-article"},"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":true,"grobid_xml":false},"content_urls":{"pdf":"https://content.openalex.org/works/W4327952021.pdf"},"referenced_works_count":82,"referenced_works":["https://openalex.org/W1498077263","https://openalex.org/W1523496391","https://openalex.org/W1542807855","https://openalex.org/W1565140245","https://openalex.org/W1597177769","https://openalex.org/W1617087148","https://openalex.org/W1776891409","https://openalex.org/W1825041585","https://openalex.org/W1965852706","https://openalex.org/W1968279094","https://openalex.org/W1972620603","https://openalex.org/W1981096042","https://openalex.org/W1983319234","https://openalex.org/W1984322858","https://openalex.org/W1987166016","https://openalex.org/W1996916507","https://openalex.org/W2029028294","https://openalex.org/W2033196499","https://openalex.org/W2042090758","https://openalex.org/W2052232537","https://openalex.org/W2059153667","https://openalex.org/W2069852708","https://openalex.org/W2070278369","https://openalex.org/W2077130544","https://openalex.org/W2081220527","https://openalex.org/W2081590984","https://openalex.org/W2085730950","https://openalex.org/W2090886982","https://openalex.org/W2094526935","https://openalex.org/W2100509069","https://openalex.org/W2101068518","https://openalex.org/W2108775281","https://openalex.org/W2112742938","https://openalex.org/W2126728198","https://openalex.org/W2136425584","https://openalex.org/W2140809274","https://openalex.org/W2164995846","https://openalex.org/W2166978470","https://openalex.org/W2204488106","https://openalex.org/W2398912470","https://openalex.org/W2417845770","https://openalex.org/W2435996611","https://openalex.org/W2492063278","https://openalex.org/W2513139564","https://openalex.org/W2561636287","https://openalex.org/W2562068770","https://openalex.org/W2587489590","https://openalex.org/W2588340726","https://openalex.org/W2591710456","https://openalex.org/W2592739395","https://openalex.org/W2598477026","https://openalex.org/W2602396095","https://openalex.org/W2614919192","https://openalex.org/W2742814354","https://openalex.org/W2743619138","https://openalex.org/W2743710218","https://openalex.org/W2743886640","https://openalex.org/W2744879314","https://openalex.org/W2746353924","https://openalex.org/W2755620400","https://openalex.org/W2766427086","https://openalex.org/W2769877796","https://openalex.org/W2772205445","https://openalex.org/W2773727201","https://openalex.org/W2783104348","https://openalex.org/W2790679291","https://openalex.org/W2807533077","https://openalex.org/W2883315882","https://openalex.org/W2886880902","https://openalex.org/W2887329358","https://openalex.org/W2888340064","https://openalex.org/W2909237169","https://openalex.org/W2959173243","https://openalex.org/W2992884538","https://openalex.org/W4205806410","https://openalex.org/W4211003818","https://openalex.org/W4281662892","https://openalex.org/W4296259824","https://openalex.org/W4306947767","https://openalex.org/W6632430593","https://openalex.org/W6638097756","https://openalex.org/W7048013296"],"related_works":["https://openalex.org/W2899084033","https://openalex.org/W3027661902","https://openalex.org/W2116489854","https://openalex.org/W2315991844","https://openalex.org/W4220825002","https://openalex.org/W4284694432","https://openalex.org/W2593524469","https://openalex.org/W2020787308","https://openalex.org/W2538207985","https://openalex.org/W2013254723"],"abstract_inverted_index":{"Nowadays,":[0],"many":[1,63],"people":[2],"around":[3,176],"the":[4,55,69,88,98,120,124,157,164,168,171,179,185],"world":[5],"cannot":[6],"walk":[7],"perfectly":[8],"because":[9],"of":[10,54,90,159,170,181],"their":[11],"knee":[12,30,38,56,110,121,150],"problems.":[13],"A":[14],"knee-assistive":[15],"device":[16,57],"is":[17,175,188],"one":[18,80],"option":[19],"to":[20,127,155,192],"support":[21,92],"walking":[22,95,186],"for":[23,86],"those":[24],"with":[25,40,83,178],"low":[26],"or":[27],"not":[28],"enough":[29],"muscle":[31],"forces.":[32],"Many":[33],"research":[34],"studies":[35],"have":[36],"created":[37],"devices":[39],"control":[41,58,75,136,145],"systems":[42],"implementing":[43],"different":[44],"techniques":[45],"and":[46,65,72,108,112,123,184],"sensors.":[47,66],"This":[48,135],"study":[49,103],"proposes":[50],"an":[51,84],"alternative":[52],"version":[53],"system":[59,146],"without":[60],"using":[61,119],"too":[62],"actuators":[64],"It":[67],"applies":[68],"machine":[70,172],"learning":[71,173],"artificial":[73,141],"stiffness":[74,142],"strategy":[76,137],"(MLASCS)":[77],"that":[78,147],"uses":[79],"actuator":[81],"combined":[82],"encoder":[85],"estimating":[87],"amount":[89,158],"assistive":[91],"in":[93,131,152,194],"a":[94,115,129,132,144,195],"gait":[96,100,106,133,197],"from":[97],"recorded":[99,104],"data.":[101],"The":[102],"several":[105],"data":[107],"analyzed":[109],"moments,":[111],"then":[113],"trained":[114],"k-nearest":[116],"neighbor":[117],"model":[118,165,174],"angle":[122,151],"angular":[125],"velocity":[126],"classify":[128],"state":[130,154],"cycle.":[134,198],"also":[138],"implements":[139],"instantaneous":[140],"(IAS),":[143],"requires":[148],"only":[149],"each":[153],"determine":[156],"supporting":[160],"moment.":[161],"After":[162],"validating":[163],"via":[166],"simulation,":[167],"accuracy":[169],"99.9%":[177],"speed":[180],"165":[182],"observers/s,":[183],"effort":[187],"reduced":[189],"by":[190],"up":[191],"60%":[193],"single":[196]},"counts_by_year":[{"year":2025,"cited_by_count":4},{"year":2024,"cited_by_count":1},{"year":2023,"cited_by_count":5}],"updated_date":"2025-12-19T19:40:27.379048","created_date":"2025-10-10T00:00:00"}
