{"id":"https://openalex.org/W3149964707","doi":"https://doi.org/10.3390/s21072333","title":"Measurement of Physical Activity by Shoe-Based Accelerometers\u2014Calibration and Free-Living Validation","display_name":"Measurement of Physical Activity by Shoe-Based Accelerometers\u2014Calibration and Free-Living Validation","publication_year":2021,"publication_date":"2021-03-26","ids":{"openalex":"https://openalex.org/W3149964707","doi":"https://doi.org/10.3390/s21072333","mag":"3149964707","pmid":"https://pubmed.ncbi.nlm.nih.gov/33810616"},"language":"en","primary_location":{"id":"doi:10.3390/s21072333","is_oa":true,"landing_page_url":"https://doi.org/10.3390/s21072333","pdf_url":"https://www.mdpi.com/1424-8220/21/7/2333/pdf?version=1617937270","source":{"id":"https://openalex.org/S101949793","display_name":"Sensors","issn_l":"1424-8220","issn":["1424-8220"],"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":"Sensors","raw_type":"journal-article"},"type":"article","indexed_in":["crossref","doaj","pubmed"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://www.mdpi.com/1424-8220/21/7/2333/pdf?version=1617937270","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5020404237","display_name":"Jonatan Fridolfsson","orcid":"https://orcid.org/0000-0002-7003-4025"},"institutions":[{"id":"https://openalex.org/I881427289","display_name":"University of Gothenburg","ror":"https://ror.org/01tm6cn81","country_code":"SE","type":"education","lineage":["https://openalex.org/I881427289"]}],"countries":["SE"],"is_corresponding":true,"raw_author_name":"Jonatan Fridolfsson","raw_affiliation_strings":["Center for Health and Performance, Department of Food and Nutrition, and Sport Science, Faculty of Education, University of Gothenburg, SE-405 30 Gothenburg, Sweden"],"raw_orcid":"https://orcid.org/0000-0002-7003-4025","affiliations":[{"raw_affiliation_string":"Center for Health and Performance, Department of Food and Nutrition, and Sport Science, Faculty of Education, University of Gothenburg, SE-405 30 Gothenburg, Sweden","institution_ids":["https://openalex.org/I881427289"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5078102195","display_name":"Daniel Arvidsson","orcid":"https://orcid.org/0000-0002-3112-5434"},"institutions":[{"id":"https://openalex.org/I881427289","display_name":"University of Gothenburg","ror":"https://ror.org/01tm6cn81","country_code":"SE","type":"education","lineage":["https://openalex.org/I881427289"]}],"countries":["SE"],"is_corresponding":false,"raw_author_name":"Daniel Arvidsson","raw_affiliation_strings":["Center for Health and Performance, Department of Food and Nutrition, and Sport Science, Faculty of Education, University of Gothenburg, SE-405 30 Gothenburg, Sweden"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Center for Health and Performance, Department of Food and Nutrition, and Sport Science, Faculty of Education, University of Gothenburg, SE-405 30 Gothenburg, Sweden","institution_ids":["https://openalex.org/I881427289"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5114948792","display_name":"Stefan Grau","orcid":"https://orcid.org/0000-0002-5511-0130"},"institutions":[{"id":"https://openalex.org/I881427289","display_name":"University of Gothenburg","ror":"https://ror.org/01tm6cn81","country_code":"SE","type":"education","lineage":["https://openalex.org/I881427289"]}],"countries":["SE"],"is_corresponding":false,"raw_author_name":"Stefan Grau","raw_affiliation_strings":["Center for Health and Performance, Department of Food and Nutrition, and Sport Science, Faculty of Education, University of Gothenburg, SE-405 30 Gothenburg, Sweden"],"raw_orcid":"https://orcid.org/0000-0002-5511-0130","affiliations":[{"raw_affiliation_string":"Center for Health and Performance, Department of Food and Nutrition, and Sport Science, Faculty of Education, University of Gothenburg, SE-405 30 Gothenburg, Sweden","institution_ids":["https://openalex.org/I881427289"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5020404237"],"corresponding_institution_ids":["https://openalex.org/I881427289"],"apc_list":{"value":2400,"currency":"CHF","value_usd":2598},"apc_paid":{"value":2400,"currency":"CHF","value_usd":2598},"fwci":0.2425,"has_fulltext":true,"cited_by_count":4,"citation_normalized_percentile":{"value":0.52537247,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":94,"max":96},"biblio":{"volume":"21","issue":"7","first_page":"2333","last_page":"2333"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10352","display_name":"Physical Activity and Health","score":0.9995999932289124,"subfield":{"id":"https://openalex.org/subfields/2737","display_name":"Physiology"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},"topics":[{"id":"https://openalex.org/T10352","display_name":"Physical Activity and Health","score":0.9995999932289124,"subfield":{"id":"https://openalex.org/subfields/2737","display_name":"Physiology"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T11209","display_name":"Cardiovascular and exercise physiology","score":0.9905999898910522,"subfield":{"id":"https://openalex.org/subfields/2707","display_name":"Complementary and alternative medicine"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T10010","display_name":"Obesity, Physical Activity, Diet","score":0.9868999719619751,"subfield":{"id":"https://openalex.org/subfields/2739","display_name":"Public Health, Environmental and Occupational 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/accelerometer","display_name":"Accelerometer","score":0.9552668333053589},{"id":"https://openalex.org/keywords/calibration","display_name":"Calibration","score":0.729918360710144},{"id":"https://openalex.org/keywords/energy-expenditure","display_name":"Energy expenditure","score":0.7001675367355347},{"id":"https://openalex.org/keywords/physical-activity","display_name":"Physical activity","score":0.5260862112045288},{"id":"https://openalex.org/keywords/simulation","display_name":"Simulation","score":0.4195452928543091},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.3957426846027374},{"id":"https://openalex.org/keywords/physical-medicine-and-rehabilitation","display_name":"Physical medicine and rehabilitation","score":0.3152828812599182},{"id":"https://openalex.org/keywords/medicine","display_name":"Medicine","score":0.2722418010234833},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.18892166018486023},{"id":"https://openalex.org/keywords/statistics","display_name":"Statistics","score":0.13261720538139343}],"concepts":[{"id":"https://openalex.org/C89805583","wikidata":"https://www.wikidata.org/wiki/Q192940","display_name":"Accelerometer","level":2,"score":0.9552668333053589},{"id":"https://openalex.org/C165838908","wikidata":"https://www.wikidata.org/wiki/Q736777","display_name":"Calibration","level":2,"score":0.729918360710144},{"id":"https://openalex.org/C2988147884","wikidata":"https://www.wikidata.org/wiki/Q5377024","display_name":"Energy expenditure","level":2,"score":0.7001675367355347},{"id":"https://openalex.org/C3020255362","wikidata":"https://www.wikidata.org/wiki/Q747883","display_name":"Physical activity","level":2,"score":0.5260862112045288},{"id":"https://openalex.org/C44154836","wikidata":"https://www.wikidata.org/wiki/Q45045","display_name":"Simulation","level":1,"score":0.4195452928543091},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.3957426846027374},{"id":"https://openalex.org/C99508421","wikidata":"https://www.wikidata.org/wiki/Q2678675","display_name":"Physical medicine and rehabilitation","level":1,"score":0.3152828812599182},{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.2722418010234833},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.18892166018486023},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.13261720538139343},{"id":"https://openalex.org/C134018914","wikidata":"https://www.wikidata.org/wiki/Q162606","display_name":"Endocrinology","level":1,"score":0.0},{"id":"https://openalex.org/C111919701","wikidata":"https://www.wikidata.org/wiki/Q9135","display_name":"Operating system","level":1,"score":0.0}],"mesh":[{"descriptor_ui":"D002138","descriptor_name":"Calibration","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D002138","descriptor_name":"Calibration","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D002138","descriptor_name":"Calibration","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D004734","descriptor_name":"Energy Metabolism","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D004734","descriptor_name":"Energy Metabolism","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D004734","descriptor_name":"Energy Metabolism","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D012775","descriptor_name":"Shoes","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D012775","descriptor_name":"Shoes","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D012775","descriptor_name":"Shoes","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D015444","descriptor_name":"Exercise","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D015444","descriptor_name":"Exercise","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D015444","descriptor_name":"Exercise","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D061725","descriptor_name":"Accelerometry","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D061725","descriptor_name":"Accelerometry","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D061725","descriptor_name":"Accelerometry","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true}],"locations_count":5,"locations":[{"id":"doi:10.3390/s21072333","is_oa":true,"landing_page_url":"https://doi.org/10.3390/s21072333","pdf_url":"https://www.mdpi.com/1424-8220/21/7/2333/pdf?version=1617937270","source":{"id":"https://openalex.org/S101949793","display_name":"Sensors","issn_l":"1424-8220","issn":["1424-8220"],"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":"Sensors","raw_type":"journal-article"},{"id":"pmid:33810616","is_oa":false,"landing_page_url":"https://pubmed.ncbi.nlm.nih.gov/33810616","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":"Sensors (Basel, Switzerland)","raw_type":null},{"id":"pmh:oai:doaj.org/article:362f42380e174c9caed333401852a676","is_oa":true,"landing_page_url":"https://doaj.org/article/362f42380e174c9caed333401852a676","pdf_url":null,"source":{"id":"https://openalex.org/S4306401280","display_name":"DOAJ (DOAJ: Directory of Open Access Journals)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by-sa","license_id":"https://openalex.org/licenses/cc-by-sa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Sensors, Vol 21, Iss 7, p 2333 (2021)","raw_type":"article"},{"id":"pmh:oai:mdpi.com:/1424-8220/21/7/2333/","is_oa":true,"landing_page_url":"https://dx.doi.org/10.3390/s21072333","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":"Sensors; Volume 21; Issue 7; Pages: 2333","raw_type":"Text"},{"id":"pmh:oai:pubmedcentral.nih.gov:8036475","is_oa":true,"landing_page_url":"https://www.ncbi.nlm.nih.gov/pmc/articles/8036475","pdf_url":null,"source":{"id":"https://openalex.org/S2764455111","display_name":"PubMed Central","issn_l":null,"issn":null,"is_oa":true,"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":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Sensors (Basel)","raw_type":"Text"}],"best_oa_location":{"id":"doi:10.3390/s21072333","is_oa":true,"landing_page_url":"https://doi.org/10.3390/s21072333","pdf_url":"https://www.mdpi.com/1424-8220/21/7/2333/pdf?version=1617937270","source":{"id":"https://openalex.org/S101949793","display_name":"Sensors","issn_l":"1424-8220","issn":["1424-8220"],"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":"Sensors","raw_type":"journal-article"},"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/8","score":0.5299999713897705,"display_name":"Decent work and economic growth"}],"awards":[],"funders":[],"has_content":{"grobid_xml":true,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W3149964707.pdf","grobid_xml":"https://content.openalex.org/works/W3149964707.grobid-xml"},"referenced_works_count":37,"referenced_works":["https://openalex.org/W1559393815","https://openalex.org/W1963321401","https://openalex.org/W2011781303","https://openalex.org/W2051029594","https://openalex.org/W2053352781","https://openalex.org/W2053533888","https://openalex.org/W2074276081","https://openalex.org/W2079462520","https://openalex.org/W2108707936","https://openalex.org/W2109270820","https://openalex.org/W2124251630","https://openalex.org/W2136489697","https://openalex.org/W2168529464","https://openalex.org/W2172051209","https://openalex.org/W2227813149","https://openalex.org/W2267994174","https://openalex.org/W2320630258","https://openalex.org/W2493846716","https://openalex.org/W2556377676","https://openalex.org/W2560176117","https://openalex.org/W2575795810","https://openalex.org/W2584016859","https://openalex.org/W2597360030","https://openalex.org/W2606037121","https://openalex.org/W2616634005","https://openalex.org/W2785176356","https://openalex.org/W2896742493","https://openalex.org/W2903150444","https://openalex.org/W2937462687","https://openalex.org/W2944143758","https://openalex.org/W2951645058","https://openalex.org/W2966069974","https://openalex.org/W3037072987","https://openalex.org/W3106217292","https://openalex.org/W3108396701","https://openalex.org/W3110322411","https://openalex.org/W6689489409"],"related_works":["https://openalex.org/W2884413333","https://openalex.org/W2120846697","https://openalex.org/W2554858923","https://openalex.org/W2127870937","https://openalex.org/W2356216756","https://openalex.org/W2964738388","https://openalex.org/W4235557","https://openalex.org/W4404837006","https://openalex.org/W2088943744","https://openalex.org/W1964538696"],"abstract_inverted_index":{"There":[0],"is":[1,163],"conflicting":[2],"evidence":[3],"regarding":[4],"the":[5,44,54,71,102,106,118,135,144,147,157,166,183],"health":[6],"implications":[7],"of":[8,36,146,159],"high":[9],"occupational":[10],"physical":[11],"activity":[12],"(PA).":[13],"Shoe-based":[14],"accelerometers":[15],"could":[16],"provide":[17],"a":[18,47,67,84,160,191,198],"feasible":[19],"solution":[20],"for":[21,34,61,70,141],"PA":[22,175],"measurement":[23],"in":[24,46,66,83,101,115,181,197],"workplace":[25,48,86],"settings.":[26],"This":[27,153],"study":[28,154],"aimed":[29],"to":[30,53,134,165,174,194],"develop":[31],"calibration":[32,107,142],"models":[33,80,90,108],"estimation":[35,63],"energy":[37],"expenditure":[38],"(EE)":[39],"from":[40,93,110,190],"shoe-based":[41,161],"accelerometers,":[42],"validate":[43],"performance":[45,158],"setting":[49,69,193],"and":[50,75,121,150,188],"compare":[51],"it":[52,178],"most":[55,167],"commonly":[56,168],"used":[57,169],"accelerometer":[58,162,186],"positions.":[59],"Models":[60],"EE":[62,132,189,196],"were":[64,81,91,113],"calibrated":[65],"laboratory":[68,103,111,192],"shoe,":[72,119,148],"hip,":[73],"thigh":[74,122,151],"wrist":[76,136],"worn":[77],"accelerometers.":[78],"These":[79],"validated":[82,114],"free-living":[85,94,139,199],"setting.":[87,104,200],"Furthermore,":[88,177],"additional":[89],"developed":[92],"data.":[95],"All":[96],"sensor":[97,170],"positions":[98,171],"performed":[99],"well":[100],"When":[105],"derived":[109],"data":[112,140],"free":[116],"living,":[117],"hip":[120,149],"sensors":[123],"displayed":[124],"higher":[125],"correlation,":[126],"but":[127],"lower":[128],"agreement,":[129],"with":[130,172],"measured":[131],"compared":[133],"sensor.":[137],"Using":[138],"improved":[143],"agreement":[145],"sensors.":[152],"suggests":[155],"that":[156],"similar":[164],"regard":[173],"measurement.":[176],"highlights":[179],"limitations":[180],"using":[182],"relationship":[184],"between":[185],"output":[187],"estimate":[195]},"counts_by_year":[{"year":2025,"cited_by_count":2},{"year":2023,"cited_by_count":2}],"updated_date":"2026-05-21T06:26:12.895304","created_date":"2025-10-10T00:00:00"}