{"id":"https://openalex.org/W2105866620","doi":null,"title":"Cyclogram Planarity is Preserved in Upward Slope Walking","display_name":"Cyclogram Planarity is Preserved in Upward Slope Walking","publication_year":1999,"publication_date":"1999-01-01","ids":{"openalex":"https://openalex.org/W2105866620","mag":"2105866620"},"language":"en","primary_location":{"id":"pmh:oai:repository.upenn.edu:hms-1097","doi":null,"is_oa":true,"landing_page_url":"https://repository.upenn.edu/hms/88","pdf_url":"https://repository.upenn.edu/hms/88","source":{"id":"https://openalex.org/S4377196331","display_name":"Scholarly Commons (University of Pennsylvania)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I79576946","host_organization_name":"University of Pennsylvania","host_organization_lineage":["https://openalex.org/I79576946"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Center for Human Modeling and Simulation","raw_type":"text"},"volume":null,"type":"article","indexed_in":[],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"https://repository.upenn.edu/hms/88","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5111891976","display_name":"Harold Chi-Hao Sun","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Harold Chi-Hao Sun","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5065501675","display_name":"Ambarish Goswami","orcid":"https://orcid.org/0009-0003-3066-8562","observed_orcids":["https://orcid.org/0009-0003-3066-8562"]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Ambarish Goswami","raw_affiliation_strings":[],"raw_orcid":"https://orcid.org/0009-0003-3066-8562","affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5064437234","display_name":"Dimitris Metaxas","orcid":"https://orcid.org/0000-0001-7142-7640","observed_orcids":["https://orcid.org/0000-0001-7142-7640"]},"institutions":[{"id":"https://openalex.org/I79576946","display_name":"University of Pennsylvania","ror":"https://ror.org/00b30xv10","country_code":"US","type":"education","lineage":["https://openalex.org/I79576946"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Dimitris Metaxas","raw_affiliation_strings":["#N#               * University of Pennsylvania"],"raw_orcid":"https://orcid.org/0000-0001-7142-7640","affiliations":[{"raw_affiliation_string":"#N#               * University of Pennsylvania","institution_ids":["https://openalex.org/I79576946"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5035234552","display_name":"Janice S. Bruckner","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Janice S. Bruckner","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.7125,"has_fulltext":true,"cited_by_count":3,"citation_normalized_percentile":{"value":0.70104941,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":94},"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/T11018","display_name":"Lower Extremity Biomechanics and Pathologies","score":0.9018999934196472,"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/T11018","display_name":"Lower Extremity Biomechanics and Pathologies","score":0.9018999934196472,"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/T10879","display_name":"Robotic Locomotion and Control","score":0.03830000013113022,"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/T10114","display_name":"Balance, Gait, and Falls Prevention","score":0.02669999934732914,"subfield":{"id":"https://openalex.org/subfields/3612","display_name":"Physical Therapy, Sports Therapy and Rehabilitation"},"field":{"id":"https://openalex.org/fields/36","display_name":"Health Professions"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/cyclograms","display_name":"cyclograms","score":0.8230000138282776},{"id":"https://openalex.org/keywords/planarity","display_name":"planarity","score":0.7609999775886536},{"id":"https://openalex.org/keywords/elevation-angle","display_name":"elevation angle","score":0.7310000061988831},{"id":"https://openalex.org/keywords/slope-walking","display_name":"slope walking","score":0.7620000243186951},{"id":"https://openalex.org/keywords/gait","display_name":"gait","score":0.49000000953674316},{"id":"https://openalex.org/keywords/human-locomotion","display_name":"human locomotion","score":0.7239999771118164},{"id":"https://openalex.org/keywords/segmental-angle","display_name":"segmental angle","score":0.49799999594688416},{"id":"https://openalex.org/keywords/sagittal-plane","display_name":"sagittal plane","score":0.6200000047683716},{"id":"https://openalex.org/keywords/three-dimensional-gait-analysis","display_name":"three-dimensional gait analysis","score":0.6169999837875366},{"id":"https://openalex.org/keywords/incline-walking","display_name":"incline walking","score":0.33399999141693115}],"concepts":[{"id":"https://openalex.org/C68260962","wikidata":"https://www.wikidata.org/wiki/Q7200967","display_name":"Planarity testing","level":2,"score":0.7282737493515015},{"id":"https://openalex.org/C37054046","wikidata":"https://www.wikidata.org/wiki/Q641888","display_name":"Elevation (ballistics)","level":2,"score":0.6867722868919373},{"id":"https://openalex.org/C115076146","wikidata":"https://www.wikidata.org/wiki/Q1651051","display_name":"Foot (prosody)","level":2,"score":0.493021696805954},{"id":"https://openalex.org/C2778357063","wikidata":"https://www.wikidata.org/wiki/Q713102","display_name":"Pelvis","level":2,"score":0.41808193922042847},{"id":"https://openalex.org/C127313418","wikidata":"https://www.wikidata.org/wiki/Q1069","display_name":"Geology","level":0,"score":0.3315446376800537},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.2943851351737976},{"id":"https://openalex.org/C105702510","wikidata":"https://www.wikidata.org/wiki/Q514","display_name":"Anatomy","level":1,"score":0.1774972379207611},{"id":"https://openalex.org/C142362112","wikidata":"https://www.wikidata.org/wiki/Q735","display_name":"Art","level":0,"score":0.16959908604621887},{"id":"https://openalex.org/C66938386","wikidata":"https://www.wikidata.org/wiki/Q633538","display_name":"Structural engineering","level":1,"score":0.13892075419425964},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.12699496746063232},{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.11438894271850586},{"id":"https://openalex.org/C114614502","wikidata":"https://www.wikidata.org/wiki/Q76592","display_name":"Combinatorics","level":1,"score":0.0715169608592987},{"id":"https://openalex.org/C124952713","wikidata":"https://www.wikidata.org/wiki/Q8242","display_name":"Literature","level":1,"score":0.0}],"mesh":[],"locations_count":5,"locations":[{"id":"pmh:oai:repository.upenn.edu:hms-1097","doi":null,"is_oa":true,"landing_page_url":"https://repository.upenn.edu/hms/88","pdf_url":"https://repository.upenn.edu/hms/88","source":{"id":"https://openalex.org/S4377196331","display_name":"Scholarly Commons (University of Pennsylvania)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I79576946","host_organization_name":"University of Pennsylvania","host_organization_lineage":["https://openalex.org/I79576946"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Center for Human Modeling and Simulation","raw_type":"text"},{"id":"pmh:oai:CiteSeerX.psu:10.1.1.357.2685","doi":null,"is_oa":false,"landing_page_url":"http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.357.2685","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"text"},{"id":"pmh:oai:CiteSeerX.psu:10.1.1.650.8586","doi":null,"is_oa":false,"landing_page_url":"http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.650.8586","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"http://repository.upenn.edu/cgi/viewcontent.cgi?article%3D1097%26context%3Dhms","raw_type":"text"},{"id":"pmh:oai:repository.upenn.edu:20.500.14332/36555","doi":null,"is_oa":false,"landing_page_url":"https://repository.upenn.edu/handle/20.500.14332/36555","pdf_url":null,"source":{"id":"https://openalex.org/S4306402083","display_name":"ScholarlyCommons (University of Pennsylvania)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I79576946","host_organization_name":"University of Pennsylvania","host_organization_lineage":["https://openalex.org/I79576946"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"published","raw_type":"Presentation"},{"id":"mag:2105866620","doi":null,"is_oa":false,"landing_page_url":"https://repository.upenn.edu/cgi/viewcontent.cgi?article=1097&context=hms","pdf_url":null,"source":null,"license":null,"license_id":null,"version":null,"is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":null}],"best_oa_location":{"id":"pmh:oai:repository.upenn.edu:hms-1097","doi":null,"is_oa":true,"landing_page_url":"https://repository.upenn.edu/hms/88","pdf_url":"https://repository.upenn.edu/hms/88","source":{"id":"https://openalex.org/S4377196331","display_name":"Scholarly Commons (University of Pennsylvania)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I79576946","host_organization_name":"University of Pennsylvania","host_organization_lineage":["https://openalex.org/I79576946"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Center for Human Modeling and Simulation","raw_type":"text"},"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[],"has_content":{"pdf":true,"grobid_xml":true},"content_urls":{"pdf":"https://content.openalex.org/works/W2105866620.pdf","grobid_xml":"https://content.openalex.org/works/W2105866620.grobid-xml"},"referenced_works_count":1,"referenced_works":["https://openalex.org/W1969042787"],"related_works":["https://openalex.org/W7098432404","https://openalex.org/W2037402008","https://openalex.org/W3082156801","https://openalex.org/W2092378551","https://openalex.org/W2335624805","https://openalex.org/W2799512538","https://openalex.org/W2514776405","https://openalex.org/W2475930042","https://openalex.org/W2242373689","https://openalex.org/W3204678315"],"abstract_inverted_index":{"In":[0,32],"a":[1,51,121,184,189,196],"recent":[2],"paper":[3],"[1]":[4],"Borghese":[5],"et":[6],"al.":[7],"demonstrated":[8],"that":[9,37],"4D":[10],"pelvis-thigh-shank-foot":[11],"cyclograms":[12,43],"of":[13,40,169],"human":[14],"locomotion":[15],"are":[16,30,223],"surprisingly":[17],"planar,":[18],"if":[19],"the":[20,26,38,166,170,178,198,215,219],"segmental":[21],"elevation":[22,41,167,201,221],"angles":[23,29,168,202,222],"rather":[24],"than":[25],"traditional":[27],"inter-segmental":[28],"used.":[31],"this":[33,68,117],"work,":[34],"we":[35],"demonstrate":[36],"planarity":[39],"angle":[42],"is":[44],"preserved":[45],"even":[46],"for":[47,116,138,210],"slope":[48,101],"walking,":[49],"within":[50],"15":[52],"degree":[53],"range.":[54],"Methods":[55],"Three":[56],"healthy":[57],"adult":[58],"volunteers":[59],"(1":[60],"female,":[61],"2":[62],"male,":[63],"ages":[64],"20-36)":[65],"participated":[66],"in":[67,183],"study":[69],"after":[70],"giving":[71],"informed":[72],"consent.":[73],"The":[74],"subjects":[75],"were":[76,175,203,207],"asked":[77],"to":[78,129,143],"walk":[79],"at":[80,135],"freely":[81],"chosen":[82],"speeds":[83],"on":[84,99],"three":[85],"surface":[86],"inclinations:":[87],"0":[88],"degrees,":[89,91],"8":[90],"and":[92,158,173,181],"15degrees.":[93],"Each":[94],"subject":[95],"performed":[96],"20":[97],"trials":[98],"each":[100,163],"angle.":[102],"A":[103],"variable":[104],"inclination":[105],"ramp":[106],"(366":[107],"cm":[108,112],"L":[109],"x":[110],"60":[111],"W)":[113],"was":[114],"constructed":[115],"purpose.":[118],"We":[119],"used":[120],"single":[122],"camera":[123],"system":[124],"from":[125,177],"Vision":[126],"1":[127],"Corp.":[128],"record":[130],"sagittal":[131],"plane":[132],"position":[133],"data":[134],"30":[136],"Hz":[137],"five":[139],"reflective":[140],"markers":[141],"attached":[142],"bony":[144],"landmarks":[145],"[1]:":[146],"anterior":[147],"superior":[148],"iliac":[149],"crest,":[150],"greater":[151],"trochanter,":[152],"lateral":[153,156],"femur":[154],"epicondyle,":[155],"malleolus,":[157],"fifth":[159],"metatarsophalangeal":[160],"joint.":[161],"At":[162],"time":[164],"instant,":[165],"thigh,":[171],"shank,":[172],"foot":[174],"extracted":[176,205],"marker":[179],"positions":[180],"plotted":[182],"3":[185],"dimensional":[186],"space.":[187],"Over":[188],"complete":[190],"gait":[191],"cycle,":[192],"these":[193],"points":[194],"form":[195],"curve-":[197],"cyclogram.":[199],"Pelvis":[200],"also":[204],"but":[206],"ignored":[208],"here":[209],"3D":[211],"illustration":[212],"purposes.":[213],"However,":[214],"results":[216],"hold":[217],"when":[218],"pelvis":[220],"included.":[224]},"counts_by_year":[{"year":2012,"cited_by_count":1}],"updated_date":"2026-09-21T07:43:02.447757","created_date":"2016-06-24T00:00:00"}
