{"id":"https://openalex.org/W2766911835","doi":"https://doi.org/10.1017/s0263574717000467","title":"Joint trajectory generator for powered orthosis based on gait modelling using PCA and FFT","display_name":"Joint trajectory generator for powered orthosis based on gait modelling using PCA and FFT","publication_year":2017,"publication_date":"2017-11-06","ids":{"openalex":"https://openalex.org/W2766911835","doi":"https://doi.org/10.1017/s0263574717000467","mag":"2766911835"},"language":"en","primary_location":{"id":"doi:10.1017/s0263574717000467","is_oa":false,"landing_page_url":"https://doi.org/10.1017/s0263574717000467","pdf_url":null,"source":{"id":"https://openalex.org/S92163612","display_name":"Robotica","issn_l":"0263-5747","issn":["0263-5747","1469-8668"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310311721","host_organization_name":"Cambridge University Press","host_organization_lineage":["https://openalex.org/P4310311721","https://openalex.org/P4310311702"],"host_organization_lineage_names":["Cambridge University Press","University of Cambridge"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Robotica","raw_type":"journal-article"},"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5040810601","display_name":"Nicholas B. Melo","orcid":null},"institutions":[{"id":"https://openalex.org/I35046152","display_name":"Universidade Federal do Rio Grande do Norte","ror":"https://ror.org/04wn09761","country_code":"BR","type":"education","lineage":["https://openalex.org/I35046152"]}],"countries":["BR"],"is_corresponding":true,"raw_author_name":"Nicholas B. Melo","raw_affiliation_strings":["Department of Computer Engineering and Automation, Federal University of Rio Grande do Norte, Natal 59078-970, Brazil. E-mails:"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Computer Engineering and Automation, Federal University of Rio Grande do Norte, Natal 59078-970, Brazil. E-mails:","institution_ids":["https://openalex.org/I35046152"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5062837641","display_name":"Carlos E.T. D\u00f3rea","orcid":"https://orcid.org/0000-0002-3999-2874"},"institutions":[{"id":"https://openalex.org/I35046152","display_name":"Universidade Federal do Rio Grande do Norte","ror":"https://ror.org/04wn09761","country_code":"BR","type":"education","lineage":["https://openalex.org/I35046152"]}],"countries":["BR"],"is_corresponding":false,"raw_author_name":"Carlos E. T. D\u00f3rea","raw_affiliation_strings":["Department of Computer Engineering and Automation, Federal University of Rio Grande do Norte, Natal 59078-970, Brazil. E-mails:"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Computer Engineering and Automation, Federal University of Rio Grande do Norte, Natal 59078-970, Brazil. E-mails:","institution_ids":["https://openalex.org/I35046152"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5033819355","display_name":"Pablo Javier Alsina","orcid":"https://orcid.org/0000-0002-2882-5237"},"institutions":[{"id":"https://openalex.org/I35046152","display_name":"Universidade Federal do Rio Grande do Norte","ror":"https://ror.org/04wn09761","country_code":"BR","type":"education","lineage":["https://openalex.org/I35046152"]}],"countries":["BR"],"is_corresponding":false,"raw_author_name":"Pablo J. Alsina","raw_affiliation_strings":["Department of Computer Engineering and Automation, Federal University of Rio Grande do Norte, Natal 59078-970, Brazil. E-mails:"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Computer Engineering and Automation, Federal University of Rio Grande do Norte, Natal 59078-970, Brazil. E-mails:","institution_ids":["https://openalex.org/I35046152"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5042686116","display_name":"M\u00e1rcio Ara\u00fajo","orcid":"https://orcid.org/0000-0001-7166-5526"},"institutions":[{"id":"https://openalex.org/I35046152","display_name":"Universidade Federal do Rio Grande do Norte","ror":"https://ror.org/04wn09761","country_code":"BR","type":"education","lineage":["https://openalex.org/I35046152"]}],"countries":["BR"],"is_corresponding":false,"raw_author_name":"M\u00e1rcio V. Ara\u00fajo","raw_affiliation_strings":["Department of Computer Engineering and Automation, Federal University of Rio Grande do Norte, Natal 59078-970, Brazil. E-mails:"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Computer Engineering and Automation, Federal University of Rio Grande do Norte, Natal 59078-970, Brazil. E-mails:","institution_ids":["https://openalex.org/I35046152"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":4,"corresponding_author_ids":["https://openalex.org/A5040810601"],"corresponding_institution_ids":["https://openalex.org/I35046152"],"apc_list":null,"apc_paid":null,"fwci":0.5247,"has_fulltext":false,"cited_by_count":7,"citation_normalized_percentile":{"value":0.65549276,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":94,"max":97},"biblio":{"volume":"36","issue":"3","first_page":"395","last_page":"407"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11023","display_name":"Prosthetics and Rehabilitation Robotics","score":0.9991999864578247,"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":0.9991999864578247,"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":0.9929999709129333,"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/T11097","display_name":"Cerebral Palsy and Movement Disorders","score":0.9901999831199646,"subfield":{"id":"https://openalex.org/subfields/2738","display_name":"Psychiatry and Mental health"},"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":0.6988312602043152},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6626412868499756},{"id":"https://openalex.org/keywords/joint","display_name":"Joint (building)","score":0.6315274834632874},{"id":"https://openalex.org/keywords/set","display_name":"Set (abstract data type)","score":0.5249538421630859},{"id":"https://openalex.org/keywords/trajectory","display_name":"Trajectory","score":0.5240987539291382},{"id":"https://openalex.org/keywords/principal-component-analysis","display_name":"Principal component analysis","score":0.49071991443634033},{"id":"https://openalex.org/keywords/autoregressive-model","display_name":"Autoregressive model","score":0.478725403547287},{"id":"https://openalex.org/keywords/generator","display_name":"Generator (circuit theory)","score":0.45415014028549194},{"id":"https://openalex.org/keywords/work","display_name":"Work (physics)","score":0.4392046630382538},{"id":"https://openalex.org/keywords/gait-analysis","display_name":"Gait analysis","score":0.43156898021698},{"id":"https://openalex.org/keywords/fourier-series","display_name":"Fourier series","score":0.41589516401290894},{"id":"https://openalex.org/keywords/fast-fourier-transform","display_name":"Fast Fourier transform","score":0.4149419069290161},{"id":"https://openalex.org/keywords/representation","display_name":"Representation (politics)","score":0.4113369286060333},{"id":"https://openalex.org/keywords/simulation","display_name":"Simulation","score":0.35715603828430176},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.3066723942756653},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.2164120078086853},{"id":"https://openalex.org/keywords/power","display_name":"Power (physics)","score":0.18246236443519592},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.1404416561126709},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.10452359914779663},{"id":"https://openalex.org/keywords/physical-medicine-and-rehabilitation","display_name":"Physical medicine and rehabilitation","score":0.08755287528038025}],"concepts":[{"id":"https://openalex.org/C151800584","wikidata":"https://www.wikidata.org/wiki/Q2370000","display_name":"Gait","level":2,"score":0.6988312602043152},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6626412868499756},{"id":"https://openalex.org/C18555067","wikidata":"https://www.wikidata.org/wiki/Q8375051","display_name":"Joint (building)","level":2,"score":0.6315274834632874},{"id":"https://openalex.org/C177264268","wikidata":"https://www.wikidata.org/wiki/Q1514741","display_name":"Set (abstract data type)","level":2,"score":0.5249538421630859},{"id":"https://openalex.org/C13662910","wikidata":"https://www.wikidata.org/wiki/Q193139","display_name":"Trajectory","level":2,"score":0.5240987539291382},{"id":"https://openalex.org/C27438332","wikidata":"https://www.wikidata.org/wiki/Q2873","display_name":"Principal component analysis","level":2,"score":0.49071991443634033},{"id":"https://openalex.org/C159877910","wikidata":"https://www.wikidata.org/wiki/Q2202883","display_name":"Autoregressive model","level":2,"score":0.478725403547287},{"id":"https://openalex.org/C2780992000","wikidata":"https://www.wikidata.org/wiki/Q17016113","display_name":"Generator (circuit theory)","level":3,"score":0.45415014028549194},{"id":"https://openalex.org/C18762648","wikidata":"https://www.wikidata.org/wiki/Q42213","display_name":"Work (physics)","level":2,"score":0.4392046630382538},{"id":"https://openalex.org/C173906292","wikidata":"https://www.wikidata.org/wiki/Q1493441","display_name":"Gait analysis","level":3,"score":0.43156898021698},{"id":"https://openalex.org/C207864730","wikidata":"https://www.wikidata.org/wiki/Q179467","display_name":"Fourier series","level":2,"score":0.41589516401290894},{"id":"https://openalex.org/C75172450","wikidata":"https://www.wikidata.org/wiki/Q623950","display_name":"Fast Fourier transform","level":2,"score":0.4149419069290161},{"id":"https://openalex.org/C2776359362","wikidata":"https://www.wikidata.org/wiki/Q2145286","display_name":"Representation (politics)","level":3,"score":0.4113369286060333},{"id":"https://openalex.org/C44154836","wikidata":"https://www.wikidata.org/wiki/Q45045","display_name":"Simulation","level":1,"score":0.35715603828430176},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.3066723942756653},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.2164120078086853},{"id":"https://openalex.org/C163258240","wikidata":"https://www.wikidata.org/wiki/Q25342","display_name":"Power (physics)","level":2,"score":0.18246236443519592},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.1404416561126709},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.10452359914779663},{"id":"https://openalex.org/C99508421","wikidata":"https://www.wikidata.org/wiki/Q2678675","display_name":"Physical medicine and rehabilitation","level":1,"score":0.08755287528038025},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.0},{"id":"https://openalex.org/C1276947","wikidata":"https://www.wikidata.org/wiki/Q333","display_name":"Astronomy","level":1,"score":0.0},{"id":"https://openalex.org/C149782125","wikidata":"https://www.wikidata.org/wiki/Q160039","display_name":"Econometrics","level":1,"score":0.0},{"id":"https://openalex.org/C17744445","wikidata":"https://www.wikidata.org/wiki/Q36442","display_name":"Political science","level":0,"score":0.0},{"id":"https://openalex.org/C134306372","wikidata":"https://www.wikidata.org/wiki/Q7754","display_name":"Mathematical analysis","level":1,"score":0.0},{"id":"https://openalex.org/C199539241","wikidata":"https://www.wikidata.org/wiki/Q7748","display_name":"Law","level":1,"score":0.0},{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.0},{"id":"https://openalex.org/C78519656","wikidata":"https://www.wikidata.org/wiki/Q101333","display_name":"Mechanical engineering","level":1,"score":0.0},{"id":"https://openalex.org/C94625758","wikidata":"https://www.wikidata.org/wiki/Q7163","display_name":"Politics","level":2,"score":0.0},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"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/C170154142","wikidata":"https://www.wikidata.org/wiki/Q150737","display_name":"Architectural engineering","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1017/s0263574717000467","is_oa":false,"landing_page_url":"https://doi.org/10.1017/s0263574717000467","pdf_url":null,"source":{"id":"https://openalex.org/S92163612","display_name":"Robotica","issn_l":"0263-5747","issn":["0263-5747","1469-8668"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310311721","host_organization_name":"Cambridge University Press","host_organization_lineage":["https://openalex.org/P4310311721","https://openalex.org/P4310311702"],"host_organization_lineage_names":["Cambridge University Press","University of Cambridge"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Robotica","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"score":0.9100000262260437,"id":"https://metadata.un.org/sdg/7","display_name":"Affordable and clean energy"}],"awards":[],"funders":[{"id":"https://openalex.org/F4320325185","display_name":"Universidade Federal do Rio Grande do Norte","ror":"https://ror.org/04wn09761"}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":34,"referenced_works":["https://openalex.org/W1510788134","https://openalex.org/W1739321102","https://openalex.org/W1863489499","https://openalex.org/W1976154135","https://openalex.org/W1991407193","https://openalex.org/W2010546295","https://openalex.org/W2022584443","https://openalex.org/W2024722516","https://openalex.org/W2037295064","https://openalex.org/W2042468324","https://openalex.org/W2057327461","https://openalex.org/W2074563816","https://openalex.org/W2082523612","https://openalex.org/W2090296913","https://openalex.org/W2091225247","https://openalex.org/W2102046115","https://openalex.org/W2103774693","https://openalex.org/W2104846037","https://openalex.org/W2120953712","https://openalex.org/W2122132874","https://openalex.org/W2123950545","https://openalex.org/W2129447992","https://openalex.org/W2134258414","https://openalex.org/W2144781570","https://openalex.org/W2144863908","https://openalex.org/W2149516292","https://openalex.org/W2156373842","https://openalex.org/W2167752831","https://openalex.org/W2199261925","https://openalex.org/W2305518797","https://openalex.org/W3033414884","https://openalex.org/W3147037079","https://openalex.org/W6609784336","https://openalex.org/W6653005691"],"related_works":["https://openalex.org/W2133973503","https://openalex.org/W2471060339","https://openalex.org/W2148547327","https://openalex.org/W4226236273","https://openalex.org/W2125892956","https://openalex.org/W2790560349","https://openalex.org/W2130975749","https://openalex.org/W2493973380","https://openalex.org/W2394835211","https://openalex.org/W2809084995"],"abstract_inverted_index":{"SUMMARY":[0],"In":[1],"this":[2],"work,":[3],"we":[4],"propose":[5],"a":[6,41,63,99,130],"method":[7,53],"able":[8],"to":[9,27,58,105,121],"find":[10],"user-oriented":[11,48],"gait":[12,64,123],"trajectories":[13,45,88],"that":[14,46],"can":[15],"be":[16],"used":[17,81,92],"in":[18,83],"powered":[19],"lower":[20],"limb":[21],"orthosis":[22,85],"applications.":[23],"Most":[24],"research":[25],"related":[26],"active":[28,132],"orthotic":[29,133],"devices":[30],"focuses":[31],"on":[32],"solving":[33],"hardware":[34],"issues.":[35],"However,":[36],"the":[37,77,94,117],"problem":[38],"of":[39,43,89,102,116],"generating":[40],"set":[42],"joint":[44,73,90,137],"are":[47,96],"still":[49],"persists.":[50],"The":[51,87],"proposed":[52],"uses":[54],"principal":[55],"component":[56],"analysis":[57],"extract":[59],"shared":[60],"features":[61],"from":[62],"dataset,":[65],"taking":[66],"into":[67],"consideration":[68],"gait-related":[69],"variables":[70],"such":[71],"as":[72],"angle":[74],"information":[75,124],"and":[76,141],"user's":[78],"anthropometric":[79],"features,":[80],"directly":[82],"an":[84],"application.":[86],"angles":[91],"by":[93,98],"model":[95],"represented":[97],"given":[100],"number":[101],"harmonics":[103],"according":[104],"their":[106],"respective":[107],"Fourier":[108],"series":[109],"analyses.":[110],"This":[111],"representation":[112],"allows":[113],"better":[114],"performance":[115],"model,":[118],"whose":[119],"capability":[120],"generate":[122],"is":[125],"validated":[126],"through":[127],"experiments":[128],"using":[129],"real":[131],"device,":[134],"analysing":[135],"both":[136],"motor":[138],"energy":[139],"consumption":[140],"user":[142],"metabolic":[143],"effort.":[144]},"counts_by_year":[{"year":2021,"cited_by_count":3},{"year":2020,"cited_by_count":2},{"year":2019,"cited_by_count":2}],"updated_date":"2026-05-21T06:26:12.895304","created_date":"2025-10-10T00:00:00"}