{"id":"https://openalex.org/W7204606900","doi":null,"title":"MyoMechanix: Biomechanically-Grounded Compositional Skilled Activity Understanding and Coaching","display_name":"MyoMechanix: Biomechanically-Grounded Compositional Skilled Activity Understanding and Coaching","publication_year":2026,"publication_date":"2026-08-26","ids":{"openalex":"https://openalex.org/W7204606900"},"language":"en","primary_location":{"id":"pmh:oai:arXiv.org:2608.26094","doi":null,"is_oa":true,"landing_page_url":"https://arxiv.org/abs/2608.26094","pdf_url":"https://arxiv.org/pdf/2608.26094","source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":"2331-8422","issn":["2331-8422"],"is_oa":true,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I205783295","host_organization_name":"Cornell University","host_organization_lineage":["https://openalex.org/I205783295"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by-nc-sa","license_id":"https://openalex.org/licenses/cc-by-nc-sa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"text"},"volume":null,"type":"preprint","is_traditional":true,"indexed_in":["arxiv"],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"https://arxiv.org/pdf/2608.26094","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5148475342","display_name":"Hao Yin","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I126520041","display_name":"University of Science and Technology of China","ror":"https://ror.org/04c4dkn09","country_code":"CN","type":"education","lineage":["https://openalex.org/I126520041","https://openalex.org/I19820366"]},{"id":"https://openalex.org/I4210092817","display_name":"Suzhou Institute of Biomedical Engineering and Technology","ror":"https://ror.org/00f58mx93","country_code":"CN","type":"facility","lineage":["https://openalex.org/I19820366","https://openalex.org/I4210092817"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Yin, Hao","raw_affiliation_strings":["School of Biomedical Engineering (Suzhou) , Division of Life Sciences and Medicine , University of Science and Technology of China , Hefei , Anhui , China","Suzhou Institute of Biomedical Engineering and Technology ,"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Biomedical Engineering (Suzhou) , Division of Life Sciences and Medicine , University of Science and Technology of China , Hefei , Anhui , China","institution_ids":["https://openalex.org/I126520041"]},{"raw_affiliation_string":"Suzhou Institute of Biomedical Engineering and Technology ,","institution_ids":["https://openalex.org/I4210092817"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5145572856","display_name":"Paritosh Parmar","orcid":"https://orcid.org/0009-0002-9894-9523","observed_orcids":["https://orcid.org/0009-0002-9894-9523"]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Parmar, Paritosh","raw_affiliation_strings":["Arexeni Research and Technologies Inc "],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Arexeni Research and Technologies Inc ","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5159791181","display_name":"Lijun Gu","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I126520041","display_name":"University of Science and Technology of China","ror":"https://ror.org/04c4dkn09","country_code":"CN","type":"education","lineage":["https://openalex.org/I126520041","https://openalex.org/I19820366"]},{"id":"https://openalex.org/I4210092817","display_name":"Suzhou Institute of Biomedical Engineering and Technology","ror":"https://ror.org/00f58mx93","country_code":"CN","type":"facility","lineage":["https://openalex.org/I19820366","https://openalex.org/I4210092817"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Gu, Lijun","raw_affiliation_strings":["School of Biomedical Engineering (Suzhou) , Division of Life Sciences and Medicine , University of Science and Technology of China , Hefei , Anhui , China","Suzhou Institute of Biomedical Engineering and Technology ,"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Biomedical Engineering (Suzhou) , Division of Life Sciences and Medicine , University of Science and Technology of China , Hefei , Anhui , China","institution_ids":["https://openalex.org/I126520041"]},{"raw_affiliation_string":"Suzhou Institute of Biomedical Engineering and Technology ,","institution_ids":["https://openalex.org/I4210092817"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5148568621","display_name":"Lin Xu","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I87710204","display_name":"Beijing Sport University","ror":"https://ror.org/03w0k0x36","country_code":"CN","type":"education","lineage":["https://openalex.org/I87710204"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Xu, Lin","raw_affiliation_strings":["School of Psychology , Beijing Sports University , Beijing , China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Psychology , Beijing Sports University , Beijing , China","institution_ids":["https://openalex.org/I87710204"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5148523852","display_name":"Tianxiao Guo","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I87710204","display_name":"Beijing Sport University","ror":"https://ror.org/03w0k0x36","country_code":"CN","type":"education","lineage":["https://openalex.org/I87710204"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Guo, Tianxiao","raw_affiliation_strings":["School of Competitive Sports , Beijing Sports University , Beijing , China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Competitive Sports , Beijing Sports University , Beijing , China","institution_ids":["https://openalex.org/I87710204"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5136490544","display_name":"Xiujin Liu","orcid":"https://orcid.org/0009-0000-7008-1270","observed_orcids":["https://orcid.org/0009-0000-7008-1270"]},"institutions":[{"id":"https://openalex.org/I27837315","display_name":"University of Michigan","ror":"https://ror.org/00jmfr291","country_code":"US","type":"education","lineage":["https://openalex.org/I27837315"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Liu, Xiujin","raw_affiliation_strings":["Department of Robotics , University of Michigan , Ann Arbor , Michigan , USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Robotics , University of Michigan , Ann Arbor , Michigan , USA","institution_ids":["https://openalex.org/I27837315"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5053658973","display_name":"Tianyou Zheng","orcid":"https://orcid.org/0000-0002-2310-2988","observed_orcids":["https://orcid.org/0000-0002-2310-2988"]},"institutions":[{"id":"https://openalex.org/I4210092817","display_name":"Suzhou Institute of Biomedical Engineering and Technology","ror":"https://ror.org/00f58mx93","country_code":"CN","type":"facility","lineage":["https://openalex.org/I19820366","https://openalex.org/I4210092817"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Zheng, Tianyou","raw_affiliation_strings":["Suzhou Institute of Biomedical Engineering and Technology ,"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Suzhou Institute of Biomedical Engineering and Technology ,","institution_ids":["https://openalex.org/I4210092817"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5148520588","display_name":"Yang Zhang","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I4210092817","display_name":"Suzhou Institute of Biomedical Engineering and Technology","ror":"https://ror.org/00f58mx93","country_code":"CN","type":"facility","lineage":["https://openalex.org/I19820366","https://openalex.org/I4210092817"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Zhang, Yang","raw_affiliation_strings":["Suzhou Institute of Biomedical Engineering and Technology ,"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Suzhou Institute of Biomedical Engineering and Technology ,","institution_ids":["https://openalex.org/I4210092817"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5126267574","display_name":"Weiwei Fu","orcid":"https://orcid.org/0000-0001-7192-3118","observed_orcids":["https://orcid.org/0000-0001-7192-3118"]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Fu, Weiwei","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":4,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":null,"has_fulltext":true,"cited_by_count":0,"citation_normalized_percentile":null,"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":null,"last_page":null},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10812","display_name":"Human Pose and Action Recognition","score":0.9750999808311462,"subfield":{"id":"https://openalex.org/subfields/1707","display_name":"Computer Vision and Pattern Recognition"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10812","display_name":"Human Pose and Action Recognition","score":0.9750999808311462,"subfield":{"id":"https://openalex.org/subfields/1707","display_name":"Computer Vision and Pattern Recognition"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10444","display_name":"Context-Aware Activity Recognition Systems","score":0.007499999832361937,"subfield":{"id":"https://openalex.org/subfields/1707","display_name":"Computer Vision and Pattern Recognition"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T12290","display_name":"Human Motion and Animation","score":0.0024999999441206455,"subfield":{"id":"https://openalex.org/subfields/1704","display_name":"Computer Graphics and Computer-Aided Design"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/action-quality-assessment","display_name":"action quality assessment","score":0.9259999990463257},{"id":"https://openalex.org/keywords/muscle-mechanics","display_name":"muscle mechanics","score":0.6439999938011169},{"id":"https://openalex.org/keywords/surface-electromyography","display_name":"surface electromyography","score":0.7919999957084656},{"id":"https://openalex.org/keywords/multimodal-benchmark","display_name":"multimodal benchmark","score":0.6539999842643738},{"id":"https://openalex.org/keywords/compositional-reasoning","display_name":"compositional reasoning","score":0.7710000276565552},{"id":"https://openalex.org/keywords/error-attribution","display_name":"error attribution","score":0.9449999928474426},{"id":"https://openalex.org/keywords/biomechanical-feedback","display_name":"biomechanical feedback","score":0.7770000100135803},{"id":"https://openalex.org/keywords/exercise-coaching","display_name":"exercise coaching","score":0.5690000057220459},{"id":"https://openalex.org/keywords/video-question-answering","display_name":"video question answering","score":0.5329999923706055}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6506999731063843},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.578499972820282},{"id":"https://openalex.org/C2780791683","wikidata":"https://www.wikidata.org/wiki/Q846785","display_name":"Action (physics)","level":2,"score":0.5507000088691711},{"id":"https://openalex.org/C2779363792","wikidata":"https://www.wikidata.org/wiki/Q1104185","display_name":"Coaching","level":2,"score":0.44620001316070557},{"id":"https://openalex.org/C119857082","wikidata":"https://www.wikidata.org/wiki/Q2539","display_name":"Machine learning","level":1,"score":0.4327999949455261},{"id":"https://openalex.org/C107457646","wikidata":"https://www.wikidata.org/wiki/Q207434","display_name":"Human\u2013computer interaction","level":1,"score":0.4198000133037567},{"id":"https://openalex.org/C2780801425","wikidata":"https://www.wikidata.org/wiki/Q5164392","display_name":"Construct (python library)","level":2,"score":0.3614000082015991},{"id":"https://openalex.org/C185798385","wikidata":"https://www.wikidata.org/wiki/Q1161707","display_name":"Benchmark (surveying)","level":2,"score":0.3573000133037567},{"id":"https://openalex.org/C2777508537","wikidata":"https://www.wikidata.org/wiki/Q7936620","display_name":"Visual reasoning","level":2,"score":0.3504999876022339},{"id":"https://openalex.org/C175154964","wikidata":"https://www.wikidata.org/wiki/Q380077","display_name":"Task analysis","level":3,"score":0.3474000096321106},{"id":"https://openalex.org/C2779530757","wikidata":"https://www.wikidata.org/wiki/Q1207505","display_name":"Quality (philosophy)","level":2,"score":0.3472999930381775},{"id":"https://openalex.org/C48007421","wikidata":"https://www.wikidata.org/wiki/Q676252","display_name":"Motion capture","level":3,"score":0.3077000081539154},{"id":"https://openalex.org/C82990744","wikidata":"https://www.wikidata.org/wiki/Q166194","display_name":"RGB color model","level":2,"score":0.3018999993801117},{"id":"https://openalex.org/C26517878","wikidata":"https://www.wikidata.org/wiki/Q228039","display_name":"Key (lock)","level":2,"score":0.30059999227523804},{"id":"https://openalex.org/C34413123","wikidata":"https://www.wikidata.org/wiki/Q170978","display_name":"Robotics","level":3,"score":0.2930000126361847},{"id":"https://openalex.org/C104114177","wikidata":"https://www.wikidata.org/wiki/Q79782","display_name":"Motion (physics)","level":2,"score":0.2800000011920929},{"id":"https://openalex.org/C66024118","wikidata":"https://www.wikidata.org/wiki/Q1122506","display_name":"Computational model","level":2,"score":0.27959999442100525},{"id":"https://openalex.org/C143299363","wikidata":"https://www.wikidata.org/wiki/Q900584","display_name":"Attribution","level":2,"score":0.2736999988555908},{"id":"https://openalex.org/C132525143","wikidata":"https://www.wikidata.org/wiki/Q141488","display_name":"Graph","level":2,"score":0.2734000086784363},{"id":"https://openalex.org/C2780451532","wikidata":"https://www.wikidata.org/wiki/Q759676","display_name":"Task (project management)","level":2,"score":0.2630999982357025},{"id":"https://openalex.org/C22367795","wikidata":"https://www.wikidata.org/wiki/Q7625208","display_name":"Structured prediction","level":2,"score":0.26010000705718994},{"id":"https://openalex.org/C2780660688","wikidata":"https://www.wikidata.org/wiki/Q25052564","display_name":"Multimodal learning","level":2,"score":0.257099986076355},{"id":"https://openalex.org/C90509273","wikidata":"https://www.wikidata.org/wiki/Q11012","display_name":"Robot","level":2,"score":0.2551000118255615}],"mesh":[],"locations_count":1,"locations":[{"id":"pmh:oai:arXiv.org:2608.26094","doi":null,"is_oa":true,"landing_page_url":"https://arxiv.org/abs/2608.26094","pdf_url":"https://arxiv.org/pdf/2608.26094","source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":"2331-8422","issn":["2331-8422"],"is_oa":true,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I205783295","host_organization_name":"Cornell University","host_organization_lineage":["https://openalex.org/I205783295"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by-nc-sa","license_id":"https://openalex.org/licenses/cc-by-nc-sa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"text"}],"best_oa_location":{"id":"pmh:oai:arXiv.org:2608.26094","doi":null,"is_oa":true,"landing_page_url":"https://arxiv.org/abs/2608.26094","pdf_url":"https://arxiv.org/pdf/2608.26094","source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":"2331-8422","issn":["2331-8422"],"is_oa":true,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I205783295","host_organization_name":"Cornell University","host_organization_lineage":["https://openalex.org/I205783295"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by-nc-sa","license_id":"https://openalex.org/licenses/cc-by-nc-sa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"text"},"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[],"has_content":{"grobid_xml":true,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W7204606900.pdf","grobid_xml":"https://content.openalex.org/works/W7204606900.grobid-xml"},"referenced_works_count":13,"referenced_works":["https://openalex.org/W3034636873","https://openalex.org/W3094502228","https://openalex.org/W4289445770","https://openalex.org/W4402667093","https://openalex.org/W4404545246","https://openalex.org/W4406489046","https://openalex.org/W4407794264","https://openalex.org/W4409263870","https://openalex.org/W4414566398","https://openalex.org/W4416053382","https://openalex.org/W7106809902","https://openalex.org/W7164424741","https://openalex.org/W7202168674"],"related_works":["https://openalex.org/W4415273323","https://openalex.org/W7081543894","https://openalex.org/W7221199512","https://openalex.org/W7202168674","https://openalex.org/W4411236312","https://openalex.org/W7219272794","https://openalex.org/W4405469753","https://openalex.org/W7116210274","https://openalex.org/W7155570314","https://openalex.org/W4404386593"],"abstract_inverted_index":{"Existing":[0],"action":[1,168],"quality":[2],"assessment":[3],"(AQA)":[4],"datasets":[5],"and":[6,16,25,73,106,112,133,141,151,157,170,188,199],"methods":[7],"rely":[8],"primarily":[9],"on":[10,116],"visual":[11],"inputs":[12],"such":[13,21],"as":[14,22,29],"RGB":[15,68],"pose,":[17,71],"overlooking":[18],"physiological":[19,75],"dynamics":[20],"muscle":[23,52],"mechanics":[24],"often":[26],"modeling":[27],"actions":[28,47,61],"monolithic":[30],"patterns.":[31],"These":[32],"limitations":[33],"hinder":[34],"fine-grained,":[35],"biomechanically":[36,185],"grounded":[37],"feedback.":[38],"We":[39,85,136],"introduce":[40],"MyoMechanix,":[41],"a":[42,142],"multimodal":[43,80,149],"ecosystem":[44],"for":[45,129,191],"weight-loaded":[46],"that":[48,148],"aligns":[49],"motion":[50],"with":[51,65,160],"activity.":[53],"Expert-annotated,":[54],"it":[55],"contains":[56],"7,500+":[57],"samples":[58],"of":[59],"20":[60],"from":[62],"38":[63],"subjects,":[64],"synchronized":[66],"multiview":[67],"video,":[69],"3D":[70],"sEMG,":[72],"additional":[74],"signals,":[76],"forming":[77],"the":[78,88],"largest":[79],"AQA":[81],"benchmark":[82],"to":[83,175],"date.":[84],"further":[86],"construct":[87],"Fitness":[89],"Knowledge":[90],"Graph":[91],"(FKG),":[92],"which":[93,126],"organizes":[94],"expert":[95],"annotations":[96],"into":[97],"structured":[98,152],"relationships":[99],"among":[100],"actions,":[101],"phases,":[102],"key":[103],"steps,":[104],"errors,":[105],"corrective":[107],"feedback,":[108],"enabling":[109],"compositional":[110,189],"scoring":[111],"interpretable":[113],"assessment.":[114],"Building":[115],"these":[117],"representations,":[118],"we":[119],"develop":[120],"CUBIST":[121,161],"(Compositional":[122],"Ontological":[123],"Reasoning":[124],"Engine),":[125],"performs":[127],"decomposition-analysis-recomposition":[128],"fine-grained":[130],"error":[131,158],"attribution":[132],"feedback":[134],"generation.":[135],"also":[137],"establish":[138],"MyoMechanix-AQA,":[139],"MyoMechanix-VideoQA,":[140],"novel":[143],"MyoMechanix-Video2EMG":[144],"task.":[145],"Experiments":[146],"show":[147],"sensing":[150],"representations":[153],"improve":[154],"performance,":[155],"interpretability,":[156],"attribution,":[159],"achieving":[162],"state-of-the-art":[163],"results;":[164],"VideoQA":[165],"enhances":[166],"language-grounded":[167],"understanding;":[169],"Video2EMG":[171],"suggests":[172],"video-based":[173],"alternatives":[174],"costly":[176],"EMG":[177],"sensing.":[178],"MyoMechanix":[179],"advances":[180],"skilled":[181],"activity":[182],"understanding":[183],"toward":[184],"grounded,":[186],"multimodal,":[187],"reasoning":[190],"Physical":[192],"AI":[193],"applications":[194],"in":[195],"fitness,":[196],"rehabilitation,":[197],"healthcare,":[198],"machine":[200],"learning.":[201],"Project":[202],"page:":[203],"https://haoyin116.github.io/MyoMechanix/":[204]},"counts_by_year":[],"updated_date":"2026-11-07T11:25:07.637180","created_date":"2026-08-29T00:00:00"}