{"id":"https://openalex.org/W2615125716","doi":"https://doi.org/10.3390/e19050229","title":"Investigation of the Intra- and Inter-Limb Muscle Coordination of Hands-and-Knees Crawling in Human Adults by Means of Muscle Synergy Analysis","display_name":"Investigation of the Intra- and Inter-Limb Muscle Coordination of Hands-and-Knees Crawling in Human Adults by Means of Muscle Synergy Analysis","publication_year":2017,"publication_date":"2017-05-17","ids":{"openalex":"https://openalex.org/W2615125716","doi":"https://doi.org/10.3390/e19050229","mag":"2615125716"},"language":"en","primary_location":{"id":"doi:10.3390/e19050229","is_oa":true,"landing_page_url":"https://doi.org/10.3390/e19050229","pdf_url":"https://www.mdpi.com/1099-4300/19/5/229/pdf?version=1495021519","source":{"id":"https://openalex.org/S195231649","display_name":"Entropy","issn_l":"1099-4300","issn":["1099-4300"],"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":"Entropy","raw_type":"journal-article"},"type":"article","indexed_in":["crossref","doaj"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://www.mdpi.com/1099-4300/19/5/229/pdf?version=1495021519","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5100441901","display_name":"Xiang Chen","orcid":"https://orcid.org/0000-0001-8259-4815"},"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"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Xiang Chen","raw_affiliation_strings":["Department of Electronic Science and Technology, University of Science and Technology of China (USTC), Hefei 230026, China"],"affiliations":[{"raw_affiliation_string":"Department of Electronic Science and Technology, University of Science and Technology of China (USTC), Hefei 230026, China","institution_ids":["https://openalex.org/I126520041"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5083083400","display_name":"Xiaocong Niu","orcid":null},"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"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Xiaocong Niu","raw_affiliation_strings":["Department of Electronic Science and Technology, University of Science and Technology of China (USTC), Hefei 230026, China"],"affiliations":[{"raw_affiliation_string":"Department of Electronic Science and Technology, University of Science and Technology of China (USTC), Hefei 230026, China","institution_ids":["https://openalex.org/I126520041"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5065547033","display_name":"De Wu","orcid":"https://orcid.org/0000-0002-8493-5596"},"institutions":[{"id":"https://openalex.org/I197869895","display_name":"Anhui Medical University","ror":"https://ror.org/03xb04968","country_code":"CN","type":"education","lineage":["https://openalex.org/I197869895"]},{"id":"https://openalex.org/I4210136596","display_name":"First Affiliated Hospital of Anhui Medical University","ror":"https://ror.org/03t1yn780","country_code":"CN","type":"healthcare","lineage":["https://openalex.org/I4210136596"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"De Wu","raw_affiliation_strings":["Department of Pediatrics, the First Affiliated Hospital of Anhui Medical University, Hefei 230022, China"],"affiliations":[{"raw_affiliation_string":"Department of Pediatrics, the First Affiliated Hospital of Anhui Medical University, Hefei 230022, China","institution_ids":["https://openalex.org/I4210136596","https://openalex.org/I197869895"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100745226","display_name":"Yi Yu","orcid":"https://orcid.org/0000-0002-8972-9230"},"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"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Yi Yu","raw_affiliation_strings":["Department of Electronic Science and Technology, University of Science and Technology of China (USTC), Hefei 230026, China"],"affiliations":[{"raw_affiliation_string":"Department of Electronic Science and Technology, University of Science and Technology of China (USTC), Hefei 230026, China","institution_ids":["https://openalex.org/I126520041"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5100437205","display_name":"Xu Zhang","orcid":"https://orcid.org/0000-0002-1533-4340"},"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"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Xu Zhang","raw_affiliation_strings":["Department of Electronic Science and Technology, University of Science and Technology of China (USTC), Hefei 230026, China"],"affiliations":[{"raw_affiliation_string":"Department of Electronic Science and Technology, University of Science and Technology of China (USTC), Hefei 230026, China","institution_ids":["https://openalex.org/I126520041"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":5,"corresponding_author_ids":["https://openalex.org/A5100441901"],"corresponding_institution_ids":["https://openalex.org/I126520041"],"apc_list":{"value":2000,"currency":"CHF","value_usd":2165},"apc_paid":{"value":2000,"currency":"CHF","value_usd":2165},"fwci":1.7059,"has_fulltext":true,"cited_by_count":25,"citation_normalized_percentile":{"value":0.83075425,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":98},"biblio":{"volume":"19","issue":"5","first_page":"229","last_page":"229"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10784","display_name":"Muscle activation and electromyography studies","score":0.9991000294685364,"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":0.9991000294685364,"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":0.9991000294685364,"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/T10114","display_name":"Balance, Gait, and Falls Prevention","score":0.9922999739646912,"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/crawling","display_name":"Crawling","score":0.9118863344192505},{"id":"https://openalex.org/keywords/central-pattern-generator","display_name":"Central pattern generator","score":0.7669095993041992},{"id":"https://openalex.org/keywords/motor-coordination","display_name":"Motor coordination","score":0.5664607882499695},{"id":"https://openalex.org/keywords/physical-medicine-and-rehabilitation","display_name":"Physical medicine and rehabilitation","score":0.4742495119571686},{"id":"https://openalex.org/keywords/anatomy","display_name":"Anatomy","score":0.4288114309310913},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.41926664113998413},{"id":"https://openalex.org/keywords/mechanism","display_name":"Mechanism (biology)","score":0.41504424810409546},{"id":"https://openalex.org/keywords/rhythm","display_name":"Rhythm","score":0.355937123298645},{"id":"https://openalex.org/keywords/medicine","display_name":"Medicine","score":0.2917647957801819},{"id":"https://openalex.org/keywords/neuroscience","display_name":"Neuroscience","score":0.23144406080245972},{"id":"https://openalex.org/keywords/psychology","display_name":"Psychology","score":0.21731093525886536},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.16159269213676453},{"id":"https://openalex.org/keywords/internal-medicine","display_name":"Internal medicine","score":0.07587915658950806}],"concepts":[{"id":"https://openalex.org/C100368936","wikidata":"https://www.wikidata.org/wiki/Q1411725","display_name":"Crawling","level":2,"score":0.9118863344192505},{"id":"https://openalex.org/C169453685","wikidata":"https://www.wikidata.org/wiki/Q1054066","display_name":"Central pattern generator","level":3,"score":0.7669095993041992},{"id":"https://openalex.org/C113062710","wikidata":"https://www.wikidata.org/wiki/Q2463100","display_name":"Motor coordination","level":2,"score":0.5664607882499695},{"id":"https://openalex.org/C99508421","wikidata":"https://www.wikidata.org/wiki/Q2678675","display_name":"Physical medicine and rehabilitation","level":1,"score":0.4742495119571686},{"id":"https://openalex.org/C105702510","wikidata":"https://www.wikidata.org/wiki/Q514","display_name":"Anatomy","level":1,"score":0.4288114309310913},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.41926664113998413},{"id":"https://openalex.org/C89611455","wikidata":"https://www.wikidata.org/wiki/Q6804646","display_name":"Mechanism (biology)","level":2,"score":0.41504424810409546},{"id":"https://openalex.org/C135343436","wikidata":"https://www.wikidata.org/wiki/Q170406","display_name":"Rhythm","level":2,"score":0.355937123298645},{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.2917647957801819},{"id":"https://openalex.org/C169760540","wikidata":"https://www.wikidata.org/wiki/Q207011","display_name":"Neuroscience","level":1,"score":0.23144406080245972},{"id":"https://openalex.org/C15744967","wikidata":"https://www.wikidata.org/wiki/Q9418","display_name":"Psychology","level":0,"score":0.21731093525886536},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.16159269213676453},{"id":"https://openalex.org/C126322002","wikidata":"https://www.wikidata.org/wiki/Q11180","display_name":"Internal medicine","level":1,"score":0.07587915658950806},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.0}],"mesh":[],"locations_count":3,"locations":[{"id":"doi:10.3390/e19050229","is_oa":true,"landing_page_url":"https://doi.org/10.3390/e19050229","pdf_url":"https://www.mdpi.com/1099-4300/19/5/229/pdf?version=1495021519","source":{"id":"https://openalex.org/S195231649","display_name":"Entropy","issn_l":"1099-4300","issn":["1099-4300"],"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":"Entropy","raw_type":"journal-article"},{"id":"pmh:oai:doaj.org/article:25d2ee8d26094b66808988b6a4427ff4","is_oa":true,"landing_page_url":"https://doaj.org/article/25d2ee8d26094b66808988b6a4427ff4","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-sa","license_id":"https://openalex.org/licenses/cc-by-sa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Entropy, Vol 19, Iss 5, p 229 (2017)","raw_type":"article"},{"id":"pmh:oai:mdpi.com:/1099-4300/19/5/229/","is_oa":true,"landing_page_url":"https://dx.doi.org/10.3390/e19050229","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":"Entropy; Volume 19; Issue 5; Pages: 229","raw_type":"Text"}],"best_oa_location":{"id":"doi:10.3390/e19050229","is_oa":true,"landing_page_url":"https://doi.org/10.3390/e19050229","pdf_url":"https://www.mdpi.com/1099-4300/19/5/229/pdf?version=1495021519","source":{"id":"https://openalex.org/S195231649","display_name":"Entropy","issn_l":"1099-4300","issn":["1099-4300"],"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":"Entropy","raw_type":"journal-article"},"sustainable_development_goals":[],"awards":[{"id":"https://openalex.org/G2087396116","display_name":null,"funder_award_id":"China","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G3317480652","display_name":null,"funder_award_id":"Science","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G522561854","display_name":null,"funder_award_id":"6143101","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G5822982967","display_name":null,"funder_award_id":"61671417","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G5973636644","display_name":null,"funder_award_id":"61431017","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"}],"funders":[{"id":"https://openalex.org/F4320321001","display_name":"National Natural Science Foundation of China","ror":"https://ror.org/01h0zpd94"}],"has_content":{"grobid_xml":true,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W2615125716.pdf","grobid_xml":"https://content.openalex.org/works/W2615125716.grobid-xml"},"referenced_works_count":50,"referenced_works":["https://openalex.org/W80262163","https://openalex.org/W1724705168","https://openalex.org/W1735741754","https://openalex.org/W1859836772","https://openalex.org/W1902027874","https://openalex.org/W1936637179","https://openalex.org/W1967049639","https://openalex.org/W1968266030","https://openalex.org/W1968272654","https://openalex.org/W1969232476","https://openalex.org/W1972837991","https://openalex.org/W1973146638","https://openalex.org/W1973300387","https://openalex.org/W1995682655","https://openalex.org/W1995828515","https://openalex.org/W2000439420","https://openalex.org/W2013166533","https://openalex.org/W2025492757","https://openalex.org/W2029882146","https://openalex.org/W2030833660","https://openalex.org/W2034150512","https://openalex.org/W2036892224","https://openalex.org/W2040024683","https://openalex.org/W2043086965","https://openalex.org/W2047002614","https://openalex.org/W2047748002","https://openalex.org/W2059765450","https://openalex.org/W2076879580","https://openalex.org/W2089628998","https://openalex.org/W2090074774","https://openalex.org/W2106518363","https://openalex.org/W2108315391","https://openalex.org/W2111960226","https://openalex.org/W2115682148","https://openalex.org/W2120815846","https://openalex.org/W2134053307","https://openalex.org/W2140687148","https://openalex.org/W2143314240","https://openalex.org/W2147804103","https://openalex.org/W2159240874","https://openalex.org/W2160494516","https://openalex.org/W2167390514","https://openalex.org/W2171465507","https://openalex.org/W2519214224","https://openalex.org/W2528529087","https://openalex.org/W2530780587","https://openalex.org/W2583290102","https://openalex.org/W4237158509","https://openalex.org/W4321258516","https://openalex.org/W6637660023"],"related_works":["https://openalex.org/W4393220254","https://openalex.org/W4321258516","https://openalex.org/W2051833850","https://openalex.org/W4287845917","https://openalex.org/W2786968259","https://openalex.org/W2120166307","https://openalex.org/W2906866672","https://openalex.org/W2127940313","https://openalex.org/W914962000","https://openalex.org/W2110084825"],"abstract_inverted_index":{"To":[0],"investigate":[1],"the":[2,77,81,85,107,120,126,137,150,159,176,201],"intra-":[3],"and":[4,39,80,111,147,190],"inter-limb":[5,138],"muscle":[6,16,57,114],"coordination":[7,64,139],"mechanism":[8,204],"of":[9,15,23,113,122,184,205],"human":[10,25,69,206],"hands-and-knees":[11,70],"crawling":[12,36,96,123,142],"by":[13,175],"means":[14],"synergy":[17],"analysis,":[18],"surface":[19],"electromyographic":[20],"(sEMG)":[21],"signals":[22],"20":[24],"adults":[26],"were":[27,116],"collected":[28],"bilaterally":[29],"from":[30,91],"32":[31],"limb":[32,54,93],"related":[33],"muscles":[34],"during":[35,68,94,100],"with":[37,141],"hands":[38],"knees":[40],"at":[41,153,165],"different":[42,101],"speeds.":[43],"The":[44,59,168],"nonnegative":[45],"matrix":[46],"factorization":[47],"(NMF)":[48],"algorithm":[49],"was":[50,65,133],"exerted":[51],"on":[52,200],"each":[53,92],"to":[55,76,84,118,135,157],"extract":[56],"synergies.":[58],"results":[60,170],"showed":[61],"that":[62],"intra-limb":[63],"relatively":[66],"stable":[67],"crawling.":[71,207],"Two":[72],"synergies,":[73],"one":[74],"relating":[75,83],"stance":[78],"phase":[79,128],"other":[82],"swing":[86],"phase,":[87],"could":[88,171],"be":[89,172],"extracted":[90],"a":[95,185,191],"cycle.":[97],"Synergy":[98],"structures":[99],"speeds":[102],"kept":[103],"good":[104],"consistency,":[105],"but":[106],"recruitment":[108],"levels,":[109],"durations,":[110],"phases":[112],"synergies":[115],"adjusted":[117],"adapt":[119],"change":[121],"speed.":[124,167],"Furthermore,":[125],"ipsilateral":[127],"lag":[129],"(IPL)":[130],"value":[131],"which":[132],"used":[134],"depict":[136],"changed":[140],"speed":[143,155],"for":[144],"most":[145],"subjects,":[146],"subjects":[148],"using":[149],"no-limb-pairing":[151],"mode":[152,161,164],"low":[154],"tended":[156],"adopt":[158],"trot-like":[160],"or":[162],"pace-like":[163],"high":[166],"research":[169],"well":[173],"explained":[174],"two-level":[177],"central":[178],"pattern":[179,192],"generator":[180,188],"(CPG)":[181],"model":[182],"consisting":[183],"half-center":[186],"rhythm":[187],"(RG)":[189],"formation":[193],"(PF)":[194],"circuit.":[195],"This":[196],"study":[197],"sheds":[198],"light":[199],"underlying":[202],"control":[203]},"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2024,"cited_by_count":2},{"year":2023,"cited_by_count":4},{"year":2022,"cited_by_count":1},{"year":2021,"cited_by_count":4},{"year":2020,"cited_by_count":5},{"year":2019,"cited_by_count":3},{"year":2018,"cited_by_count":5}],"updated_date":"2026-04-10T15:06:20.359241","created_date":"2017-05-26T00:00:00"}
