{"id":"https://openalex.org/W2052322976","doi":"https://doi.org/10.1109/iembs.2011.6091024","title":"Efficient estimation of time-varying intrinsic and reflex stiffness","display_name":"Efficient estimation of time-varying intrinsic and reflex stiffness","publication_year":2011,"publication_date":"2011-08-01","ids":{"openalex":"https://openalex.org/W2052322976","doi":"https://doi.org/10.1109/iembs.2011.6091024","mag":"2052322976","pmid":"https://pubmed.ncbi.nlm.nih.gov/22255247"},"language":"en","primary_location":{"id":"doi:10.1109/iembs.2011.6091024","is_oa":false,"landing_page_url":"https://doi.org/10.1109/iembs.2011.6091024","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2011 Annual International Conference of the IEEE Engineering in Medicine and Biology Society","raw_type":"proceedings-article"},"type":"article","indexed_in":["crossref","pubmed"],"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/A5047581083","display_name":"Daniel Ludvig","orcid":"https://orcid.org/0000-0003-0268-6686"},"institutions":[{"id":"https://openalex.org/I1324242722","display_name":"Shirley Ryan AbilityLab","ror":"https://ror.org/02ja0m249","country_code":"US","type":"healthcare","lineage":["https://openalex.org/I1324242722"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"D. Ludvig","raw_affiliation_strings":["Sensory Motor Performance Program, Rehabilitation Institute of Chicago, Chicago, IL 60657, USA. daniel.ludvig@mail.mcgill.ca","Sensory Motor Performance Program, Rehabilitation Institute of Chicago, Chicago, IL, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Sensory Motor Performance Program, Rehabilitation Institute of Chicago, Chicago, IL 60657, USA. daniel.ludvig@mail.mcgill.ca","institution_ids":["https://openalex.org/I1324242722"]},{"raw_affiliation_string":"Sensory Motor Performance Program, Rehabilitation Institute of Chicago, Chicago, IL, USA","institution_ids":["https://openalex.org/I1324242722"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5091823591","display_name":"Eric J. Perreault","orcid":"https://orcid.org/0000-0002-9860-6427"},"institutions":[{"id":"https://openalex.org/I111979921","display_name":"Northwestern University","ror":"https://ror.org/000e0be47","country_code":"US","type":"education","lineage":["https://openalex.org/I111979921"]},{"id":"https://openalex.org/I1324242722","display_name":"Shirley Ryan AbilityLab","ror":"https://ror.org/02ja0m249","country_code":"US","type":"healthcare","lineage":["https://openalex.org/I1324242722"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"E. J. Perreault","raw_affiliation_strings":["Department of Biomedical Engineering and the Department of Physical Medicine and Rehabilitation, Northwestern University, Chicago, IL, USA","Sensory Motor Performance Program, Rehabilitation Institute of Chicago, Chicago, IL, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Biomedical Engineering and the Department of Physical Medicine and Rehabilitation, Northwestern University, Chicago, IL, USA","institution_ids":["https://openalex.org/I111979921"]},{"raw_affiliation_string":"Sensory Motor Performance Program, Rehabilitation Institute of Chicago, Chicago, IL, USA","institution_ids":["https://openalex.org/I1324242722"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5024458992","display_name":"Robert E. Kearney","orcid":"https://orcid.org/0000-0002-5107-6190"},"institutions":[{"id":"https://openalex.org/I5023651","display_name":"McGill University","ror":"https://ror.org/01pxwe438","country_code":"CA","type":"education","lineage":["https://openalex.org/I5023651"]}],"countries":["CA"],"is_corresponding":false,"raw_author_name":"R. E. Kearney","raw_affiliation_strings":["Biomedical Engineering Department, McGill University, Montreal, QUE, Canada"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Biomedical Engineering Department, McGill University, Montreal, QUE, Canada","institution_ids":["https://openalex.org/I5023651"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":3,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.4314,"has_fulltext":false,"cited_by_count":3,"citation_normalized_percentile":{"value":0.6614346,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":94},"biblio":{"volume":"18","issue":null,"first_page":"4124","last_page":"4127"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10784","display_name":"Muscle activation and electromyography studies","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/T10784","display_name":"Muscle activation and electromyography studies","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/T10982","display_name":"Motor Control and Adaptation","score":0.9951000213623047,"subfield":{"id":"https://openalex.org/subfields/2805","display_name":"Cognitive Neuroscience"},"field":{"id":"https://openalex.org/fields/28","display_name":"Neuroscience"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}},{"id":"https://openalex.org/T10923","display_name":"Force Microscopy Techniques and Applications","score":0.9825000166893005,"subfield":{"id":"https://openalex.org/subfields/3107","display_name":"Atomic and Molecular Physics, and Optics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/stiffness","display_name":"Stiffness","score":0.8357243537902832},{"id":"https://openalex.org/keywords/torque","display_name":"Torque","score":0.7853096723556519},{"id":"https://openalex.org/keywords/reflex","display_name":"Reflex","score":0.6811052560806274},{"id":"https://openalex.org/keywords/control-theory","display_name":"Control theory (sociology)","score":0.6808769702911377},{"id":"https://openalex.org/keywords/joint-stiffness","display_name":"Joint stiffness","score":0.6754617691040039},{"id":"https://openalex.org/keywords/joint","display_name":"Joint (building)","score":0.6226860880851746},{"id":"https://openalex.org/keywords/position","display_name":"Position (finance)","score":0.5675488114356995},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.41567185521125793},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.2856748700141907},{"id":"https://openalex.org/keywords/structural-engineering","display_name":"Structural engineering","score":0.2407028079032898},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.2101796269416809},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.09114724397659302},{"id":"https://openalex.org/keywords/control","display_name":"Control (management)","score":0.09012901782989502},{"id":"https://openalex.org/keywords/medicine","display_name":"Medicine","score":0.08764243125915527}],"concepts":[{"id":"https://openalex.org/C2779372316","wikidata":"https://www.wikidata.org/wiki/Q569057","display_name":"Stiffness","level":2,"score":0.8357243537902832},{"id":"https://openalex.org/C144171764","wikidata":"https://www.wikidata.org/wiki/Q48103","display_name":"Torque","level":2,"score":0.7853096723556519},{"id":"https://openalex.org/C83974742","wikidata":"https://www.wikidata.org/wiki/Q179405","display_name":"Reflex","level":2,"score":0.6811052560806274},{"id":"https://openalex.org/C47446073","wikidata":"https://www.wikidata.org/wiki/Q5165890","display_name":"Control theory (sociology)","level":3,"score":0.6808769702911377},{"id":"https://openalex.org/C2781415944","wikidata":"https://www.wikidata.org/wiki/Q559210","display_name":"Joint stiffness","level":3,"score":0.6754617691040039},{"id":"https://openalex.org/C18555067","wikidata":"https://www.wikidata.org/wiki/Q8375051","display_name":"Joint (building)","level":2,"score":0.6226860880851746},{"id":"https://openalex.org/C198082294","wikidata":"https://www.wikidata.org/wiki/Q3399648","display_name":"Position (finance)","level":2,"score":0.5675488114356995},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.41567185521125793},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.2856748700141907},{"id":"https://openalex.org/C66938386","wikidata":"https://www.wikidata.org/wiki/Q633538","display_name":"Structural engineering","level":1,"score":0.2407028079032898},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.2101796269416809},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.09114724397659302},{"id":"https://openalex.org/C2775924081","wikidata":"https://www.wikidata.org/wiki/Q55608371","display_name":"Control (management)","level":2,"score":0.09012901782989502},{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.08764243125915527},{"id":"https://openalex.org/C10138342","wikidata":"https://www.wikidata.org/wiki/Q43015","display_name":"Finance","level":1,"score":0.0},{"id":"https://openalex.org/C126322002","wikidata":"https://www.wikidata.org/wiki/Q11180","display_name":"Internal medicine","level":1,"score":0.0},{"id":"https://openalex.org/C97355855","wikidata":"https://www.wikidata.org/wiki/Q11473","display_name":"Thermodynamics","level":1,"score":0.0},{"id":"https://openalex.org/C162324750","wikidata":"https://www.wikidata.org/wiki/Q8134","display_name":"Economics","level":0,"score":0.0}],"mesh":[{"descriptor_ui":"D000465","descriptor_name":"Algorithms","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D000465","descriptor_name":"Algorithms","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D000465","descriptor_name":"Algorithms","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D006801","descriptor_name":"Humans","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D006801","descriptor_name":"Humans","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D006801","descriptor_name":"Humans","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D007596","descriptor_name":"Joints","qualifier_ui":"Q000502","qualifier_name":"physiology","is_major_topic":false},{"descriptor_ui":"D007596","descriptor_name":"Joints","qualifier_ui":"Q000502","qualifier_name":"physiology","is_major_topic":false},{"descriptor_ui":"D007596","descriptor_name":"Joints","qualifier_ui":"Q000502","qualifier_name":"physiology","is_major_topic":false},{"descriptor_ui":"D008962","descriptor_name":"Models, Theoretical","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D008962","descriptor_name":"Models, Theoretical","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D008962","descriptor_name":"Models, Theoretical","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false}],"locations_count":3,"locations":[{"id":"doi:10.1109/iembs.2011.6091024","is_oa":false,"landing_page_url":"https://doi.org/10.1109/iembs.2011.6091024","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2011 Annual International Conference of the IEEE Engineering in Medicine and Biology Society","raw_type":"proceedings-article"},{"id":"pmid:22255247","is_oa":false,"landing_page_url":"https://pubmed.ncbi.nlm.nih.gov/22255247","pdf_url":null,"source":{"id":"https://openalex.org/S4306525036","display_name":"PubMed","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I1299303238","host_organization_name":"National Institutes of Health","host_organization_lineage":["https://openalex.org/I1299303238"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference","raw_type":null},{"id":"pmh:oai:europepmc.org:2647569","is_oa":false,"landing_page_url":"https://www.ncbi.nlm.nih.gov/pmc/articles/3648806","pdf_url":null,"source":{"id":"https://openalex.org/S4306400806","display_name":"Europe PMC (PubMed Central)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I1303153112","host_organization_name":"European Bioinformatics Institute","host_organization_lineage":["https://openalex.org/I1303153112"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"Text"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":8,"referenced_works":["https://openalex.org/W1987890863","https://openalex.org/W2108817934","https://openalex.org/W2159732416","https://openalex.org/W2162249689","https://openalex.org/W2166386387","https://openalex.org/W2172227046","https://openalex.org/W2254685193","https://openalex.org/W6691757605"],"related_works":["https://openalex.org/W2083759350","https://openalex.org/W3133687580","https://openalex.org/W2021098562","https://openalex.org/W1566538768","https://openalex.org/W1897710365","https://openalex.org/W2317038355","https://openalex.org/W2942851934","https://openalex.org/W2366081543","https://openalex.org/W4386883573","https://openalex.org/W2116005591"],"abstract_inverted_index":{"Dynamic":[0],"joint":[1,12,70,79],"stiffness":[2,31,37,55,67,80,98],"defines":[3],"the":[4,8,11,14,24,75,113,116],"dynamic":[5,78],"relationship":[6],"between":[7],"position":[9,71],"of":[10,26,33,77,115,128],"and":[13,28,38,43,53,65,72,96,99],"torque":[15],"acting":[16],"about":[17],"it;":[18],"hence":[19],"it":[20,118],"is":[21,47,56,61],"important":[22],"in":[23],"control":[25],"movement":[27,82],"posture.":[29],"Joint":[30],"consists":[32],"two":[34],"components:":[35],"intrinsic":[36,42,52,64,95],"reflex":[39,44,54,66,97],"stiffness.":[40],"Measuring":[41],"torques":[45],"directly":[46],"not":[48],"possible,":[49],"thus":[50],"estimating":[51],"challenging.":[57],"A":[58],"further":[59],"complication":[60],"that":[62,108,110],"both":[63],"vary":[68],"with":[69],"torque.":[73],"Thus,":[74],"measurement":[76],"during":[81],"requires":[83],"a":[84,126],"time-varying":[85,94],"algorithm.":[86],"Recently":[87],"we":[88],"described":[89],"an":[90],"algorithm":[91,109],"to":[92,107],"estimate":[93],"demonstrated":[100],"its":[101,122],"application.":[102],"This":[103],"paper":[104],"describes":[105],"modifications":[106],"significantly":[111],"improves":[112],"accuracy":[114],"estimates":[117],"generates":[119],"while":[120],"increasing":[121],"computational":[123],"efficiency":[124],"by":[125],"factor":[127],"seven.":[129]},"counts_by_year":[{"year":2018,"cited_by_count":1},{"year":2014,"cited_by_count":1},{"year":2013,"cited_by_count":1}],"updated_date":"2026-06-11T09:08:48.828518","created_date":"2025-10-10T00:00:00"}
