{"id":"https://openalex.org/W2474571253","doi":"https://doi.org/10.1249/01.mss.0000487361.48518.aa","title":"Examining The Validity Of Fitbit Charge HR For Measuring Heart Rate In Free-living Conditions","display_name":"Examining The Validity Of Fitbit Charge HR For Measuring Heart Rate In Free-living Conditions","publication_year":2016,"publication_date":"2016-05-01","ids":{"openalex":"https://openalex.org/W2474571253","doi":"https://doi.org/10.1249/01.mss.0000487361.48518.aa","mag":"2474571253"},"language":"en","primary_location":{"id":"doi:10.1249/01.mss.0000487361.48518.aa","doi":"https://doi.org/10.1249/01.mss.0000487361.48518.aa","is_oa":false,"landing_page_url":"https://doi.org/10.1249/01.mss.0000487361.48518.aa","pdf_url":null,"source":{"id":"https://openalex.org/S14544163","display_name":"Medicine & Science in Sports & Exercise","issn_l":"0195-9131","issn":["0195-9131","1530-0315"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-class-a","anvur-scientific","cwts-core","dongbi-a","doyens","jufo-3","ki-jl-2","medline","norway-2","poland-140","russia-white-list-1","vabb-shw"],"host_organization":"https://openalex.org/P4310315671","host_organization_name":"Lippincott Williams & Wilkins","host_organization_lineage":["https://openalex.org/P4310315671","https://openalex.org/P4310318547"],"host_organization_lineage_names":["Lippincott Williams & Wilkins","Wolters Kluwer"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Medicine &amp; Science in Sports &amp; Exercise","raw_type":"journal-article"},"volume":null,"type":"article","is_traditional":true,"indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"https://digitalcommons.unomaha.edu/context/pahppresentations/article/1012/viewcontent/ACSM_Fitbit_Validity_Poster.pdf","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5100629464","display_name":"Jung Min Lee","orcid":"https://orcid.org/0000-0002-8033-0725","observed_orcids":["https://orcid.org/0000-0002-8033-0725","https://orcid.org/0000-0001-8801-1027"]},"institutions":[{"id":"https://openalex.org/I122266389","display_name":"University of Nebraska at Omaha","ror":"https://ror.org/04yrkc140","country_code":"US","type":"education","lineage":["https://openalex.org/I122266389"]},{"id":"https://openalex.org/I12315562","display_name":"Texas Tech University","ror":"https://ror.org/0405mnx93","country_code":"US","type":"education","lineage":["https://openalex.org/I12315562"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Jung-Min M. Lee","raw_affiliation_strings":["1University of Nebraska at Omaha, Omaha, NE. 2Yong-In, Yong-In, Korea, Republic of. 3Texas Tech University, Lubbock, TX"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"1University of Nebraska at Omaha, Omaha, NE. 2Yong-In, Yong-In, Korea, Republic of. 3Texas Tech University, Lubbock, TX","institution_ids":["https://openalex.org/I122266389","https://openalex.org/I12315562"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5016376413","display_name":"Hyun\u2010Sung An","orcid":"https://orcid.org/0000-0002-7486-0324","observed_orcids":["https://orcid.org/0000-0002-7486-0324"]},"institutions":[{"id":"https://openalex.org/I122266389","display_name":"University of Nebraska at Omaha","ror":"https://ror.org/04yrkc140","country_code":"US","type":"education","lineage":["https://openalex.org/I122266389"]},{"id":"https://openalex.org/I12315562","display_name":"Texas Tech University","ror":"https://ror.org/0405mnx93","country_code":"US","type":"education","lineage":["https://openalex.org/I12315562"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Hyunsung An","raw_affiliation_strings":["1University of Nebraska at Omaha, Omaha, NE. 2Yong-In, Yong-In, Korea, Republic of. 3Texas Tech University, Lubbock, TX"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"1University of Nebraska at Omaha, Omaha, NE. 2Yong-In, Yong-In, Korea, Republic of. 3Texas Tech University, Lubbock, TX","institution_ids":["https://openalex.org/I122266389","https://openalex.org/I12315562"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5006563253","display_name":"Seoungki Kang","orcid":"https://orcid.org/0000-0003-0193-2312","observed_orcids":["https://orcid.org/0000-0003-0193-2312"]},"institutions":[{"id":"https://openalex.org/I122266389","display_name":"University of Nebraska at Omaha","ror":"https://ror.org/04yrkc140","country_code":"US","type":"education","lineage":["https://openalex.org/I122266389"]},{"id":"https://openalex.org/I12315562","display_name":"Texas Tech University","ror":"https://ror.org/0405mnx93","country_code":"US","type":"education","lineage":["https://openalex.org/I12315562"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Seoung-ki Kang","raw_affiliation_strings":["1University of Nebraska at Omaha, Omaha, NE. 2Yong-In, Yong-In, Korea, Republic of. 3Texas Tech University, Lubbock, TX"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"1University of Nebraska at Omaha, Omaha, NE. 2Yong-In, Yong-In, Korea, Republic of. 3Texas Tech University, Lubbock, TX","institution_ids":["https://openalex.org/I122266389","https://openalex.org/I12315562"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5009809161","display_name":"Youngdeok Kim","orcid":"https://orcid.org/0000-0002-6134-0100","observed_orcids":["https://orcid.org/0000-0002-6134-0100"]},"institutions":[{"id":"https://openalex.org/I122266389","display_name":"University of Nebraska at Omaha","ror":"https://ror.org/04yrkc140","country_code":"US","type":"education","lineage":["https://openalex.org/I122266389"]},{"id":"https://openalex.org/I12315562","display_name":"Texas Tech University","ror":"https://ror.org/0405mnx93","country_code":"US","type":"education","lineage":["https://openalex.org/I12315562"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Youngdeok Kim","raw_affiliation_strings":["1University of Nebraska at Omaha, Omaha, NE. 2Yong-In, Yong-In, Korea, Republic of. 3Texas Tech University, Lubbock, TX"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"1University of Nebraska at Omaha, Omaha, NE. 2Yong-In, Yong-In, Korea, Republic of. 3Texas Tech University, Lubbock, TX","institution_ids":["https://openalex.org/I122266389","https://openalex.org/I12315562"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5053412108","display_name":"Danae M. Dinkel","orcid":"https://orcid.org/0000-0002-0262-4429","observed_orcids":["https://orcid.org/0000-0002-0262-4429"]},"institutions":[{"id":"https://openalex.org/I122266389","display_name":"University of Nebraska at Omaha","ror":"https://ror.org/04yrkc140","country_code":"US","type":"education","lineage":["https://openalex.org/I122266389"]},{"id":"https://openalex.org/I12315562","display_name":"Texas Tech University","ror":"https://ror.org/0405mnx93","country_code":"US","type":"education","lineage":["https://openalex.org/I12315562"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Danae Dinkel","raw_affiliation_strings":["1University of Nebraska at Omaha, Omaha, NE. 2Yong-In, Yong-In, Korea, Republic of. 3Texas Tech University, Lubbock, TX"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"1University of Nebraska at Omaha, Omaha, NE. 2Yong-In, Yong-In, Korea, Republic of. 3Texas Tech University, Lubbock, TX","institution_ids":["https://openalex.org/I122266389","https://openalex.org/I12315562"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.8334,"has_fulltext":true,"cited_by_count":8,"citation_normalized_percentile":{"value":0.71088395,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":88,"max":96},"biblio":{"volume":"48","issue":null,"first_page":"786","last_page":"787"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11196","display_name":"Non-Invasive Vital Sign Monitoring","score":0.9965999722480774,"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/T11196","display_name":"Non-Invasive Vital Sign Monitoring","score":0.9965999722480774,"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/T10352","display_name":"Physical Activity and Health","score":0.000699999975040555,"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"}},{"id":"https://openalex.org/T11209","display_name":"Cardiovascular and exercise physiology","score":0.000699999975040555,"subfield":{"id":"https://openalex.org/subfields/2737","display_name":"Physiology (medical)"},"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/activity-trackers","display_name":"wearable activity trackers","score":0.8790000081062317},{"id":"https://openalex.org/keywords/heart-rate-measurement","display_name":"heart rate measurement","score":0.6759999990463257},{"id":"https://openalex.org/keywords/photoplethysmography","display_name":"photoplethysmography","score":0.9070000052452087},{"id":"https://openalex.org/keywords/wrist-worn-sensors","display_name":"wrist-worn sensors","score":0.6650000214576721},{"id":"https://openalex.org/keywords/free-living-conditions","display_name":"free-living conditions","score":0.8510000109672546},{"id":"https://openalex.org/keywords/measurement-validity","display_name":"measurement validity","score":0.7919999957084656},{"id":"https://openalex.org/keywords/mean-absolute-percentage-error","display_name":"mean absolute percentage error","score":0.6869999766349792},{"id":"https://openalex.org/keywords/daily-activity-monitoring","display_name":"daily activity monitoring","score":0.44600000977516174},{"id":"https://openalex.org/keywords/healthy-young-adults","display_name":"healthy young adults","score":0.5860000252723694}],"concepts":[{"id":"https://openalex.org/C6387636","wikidata":"https://www.wikidata.org/wiki/Q16001686","display_name":"Activity tracker","level":3,"score":0.7109807729721069},{"id":"https://openalex.org/C2777953023","wikidata":"https://www.wikidata.org/wiki/Q1073121","display_name":"Heart rate","level":3,"score":0.6629162430763245},{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.5762865543365479},{"id":"https://openalex.org/C1862650","wikidata":"https://www.wikidata.org/wiki/Q186005","display_name":"Physical therapy","level":1,"score":0.4487607777118683},{"id":"https://openalex.org/C3020255362","wikidata":"https://www.wikidata.org/wiki/Q747883","display_name":"Physical activity","level":2,"score":0.3597429692745209},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.35038426518440247},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.2576535940170288},{"id":"https://openalex.org/C126322002","wikidata":"https://www.wikidata.org/wiki/Q11180","display_name":"Internal medicine","level":1,"score":0.20574796199798584},{"id":"https://openalex.org/C84393581","wikidata":"https://www.wikidata.org/wiki/Q82642","display_name":"Blood pressure","level":2,"score":0.19596365094184875}],"mesh":[],"locations_count":3,"locations":[{"id":"doi:10.1249/01.mss.0000487361.48518.aa","doi":"https://doi.org/10.1249/01.mss.0000487361.48518.aa","is_oa":false,"landing_page_url":"https://doi.org/10.1249/01.mss.0000487361.48518.aa","pdf_url":null,"source":{"id":"https://openalex.org/S14544163","display_name":"Medicine & Science in Sports & Exercise","issn_l":"0195-9131","issn":["0195-9131","1530-0315"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-class-a","anvur-scientific","cwts-core","dongbi-a","doyens","jufo-3","ki-jl-2","medline","norway-2","poland-140","russia-white-list-1","vabb-shw"],"host_organization":"https://openalex.org/P4310315671","host_organization_name":"Lippincott Williams & Wilkins","host_organization_lineage":["https://openalex.org/P4310315671","https://openalex.org/P4310318547"],"host_organization_lineage_names":["Lippincott Williams & Wilkins","Wolters Kluwer"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Medicine &amp; Science in Sports &amp; Exercise","raw_type":"journal-article"},{"id":"pmh:oai:digitalcommons.unomaha.edu:pahppresentations-1012","doi":null,"is_oa":true,"landing_page_url":"https://digitalcommons.unomaha.edu/pahppresentations/15","pdf_url":"https://digitalcommons.unomaha.edu/context/pahppresentations/article/1012/viewcontent/ACSM_Fitbit_Validity_Poster.pdf","source":{"id":"https://openalex.org/S7407097580","display_name":"DigitalCommons@UNO","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I122266389","host_organization_name":"University of Nebraska at Omaha","host_organization_lineage":["https://openalex.org/I122266389"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Research Presentations","raw_type":"text"},{"id":"mag:2587440114","doi":null,"is_oa":false,"landing_page_url":"https://digitalcommons.unomaha.edu/cgi/viewcontent.cgi?article=1012&context=pahppresentations","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:digitalcommons.unomaha.edu:pahppresentations-1012","doi":null,"is_oa":true,"landing_page_url":"https://digitalcommons.unomaha.edu/pahppresentations/15","pdf_url":"https://digitalcommons.unomaha.edu/context/pahppresentations/article/1012/viewcontent/ACSM_Fitbit_Validity_Poster.pdf","source":{"id":"https://openalex.org/S7407097580","display_name":"DigitalCommons@UNO","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I122266389","host_organization_name":"University of Nebraska at Omaha","host_organization_lineage":["https://openalex.org/I122266389"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Research Presentations","raw_type":"text"},"sustainable_development_goals":[{"score":0.9391000270843506,"display_name":"Good health and well-being","id":"https://metadata.un.org/sdg/3"}],"study_designs":[],"awards":[],"funders":[],"has_content":{"pdf":true,"grobid_xml":true},"content_urls":{"pdf":"https://content.openalex.org/works/W2474571253.pdf","grobid_xml":"https://content.openalex.org/works/W2474571253.grobid-xml"},"referenced_works_count":0,"referenced_works":[],"related_works":["https://openalex.org/W7223586605","https://openalex.org/W2548927705","https://openalex.org/W2595709908","https://openalex.org/W2955764764","https://openalex.org/W2765080021","https://openalex.org/W2897532045","https://openalex.org/W2463893637","https://openalex.org/W2343412983","https://openalex.org/W2618466037","https://openalex.org/W3138440227"],"abstract_inverted_index":{"Optical":[0],"blood":[1],"flow":[2],"sensors":[3],"(i.e.":[4],"photoplethysmographic":[5],"techniques)":[6],"have":[7],"recently":[8],"been":[9],"utilized":[10],"in":[11,62,93,121,136,199,303,342],"wearable":[12,26],"activity":[13,27],"trackers.":[14],"The":[15,66,124,321],"Fitbit":[16,327],"Charge":[17,328],"HRTM":[18,329],"(FBHR)":[19],"is":[20,348],"one":[21],"of":[22,57,68,76,175,185,221,337],"the":[23,55,74,122,141,164,183,195,203,226,231,266,325],"widely":[24],"recognized":[25],"trackers":[28],"that":[29,324],"utilizes":[30],"Fitbit\u2019s":[31],"proprietary":[32],"PurePulse":[33],"optical":[34],"heart":[35],"rate":[36],"(HR)":[37],"technology":[38],"to":[39,51,72,128,181,194,317,350],"automatically":[40],"measure":[41,92],"wrist-based":[42],"HR.":[43],"Despite":[44],"its":[45],"increasing":[46],"popularity,":[47],"however,":[48],"no":[49],"study":[50,70],"date":[52],"has":[53],"addressed":[54],"validity":[56,75],"FBHR":[58,77,241,244,269,284,291,307,312],"for":[59,78,133,212,239,283,290],"measuring":[60,79],"HR":[61,80,86,158,166,292,305,338],"free-living":[63,94,340],"conditions.":[64,95],"PURPOSE:":[65],"purpose":[67],"this":[69,343],"was":[71,159,179],"examine":[73,182],"using":[81],"a":[82,90,137,208,355],"chest":[83,147],"strap":[84],"Polar":[85],"monitor":[87,170],"(PHR)":[88],"as":[89],"reference":[91],"METHODS:":[96],"Ten":[97],"healthy":[98],"college":[99],"students":[100],"(8":[101],"males;":[102],"mean":[103,110,216],"age":[104],"=":[105,115],"26.5":[106],"\u00b1":[107,117,237,248,252,257,281,288],"5.4":[108],"years;":[109],"body":[111],"mass":[112],"index":[113],"(BMI)":[114],"24.5":[116],"3.23":[118],"kg\u00b7m2)":[119],"participated":[120],"study.":[123,344],"participants":[125],"were":[126,171,205,228,246,273,279],"asked":[127],"perform":[129],"normal":[130],"daily":[131],"activities":[132],"8":[134],"hours":[135],"day":[138],"while":[139],"wearing":[140],"PHR":[142,267,318],"(model":[143],"RS400)":[144],"on":[145,151],"their":[146,152],"and":[148,154,163,243,255,268,271,275,286,295,311],"two":[149],"FBHRs":[150,191,227],"dominant":[153,245,272,313],"non-dominant":[155,270,285,308],"wrists,":[156],"respectively.":[157,260,277],"recorded":[160],"every":[161],"minute":[162],"minute-by-minute":[165,222],"data":[167],"from":[168,190,225,306],"each":[169],"synchronized":[172],"by":[173,207],"time":[174],"day.":[176],"Pearson":[177,261],"correlation":[178,262],"used":[180],"linearity":[184],"average":[186,200],"beats-per-minute":[187],"(bpm)":[188],"estimated":[189,224],"with":[192,298,354,358],"respect":[193],"PHR.":[196,232],"Mean":[197],"differences":[198,302],"bpm":[201,223],"between":[202,265],"monitors":[204,353],"examined":[206],"general":[209],"linear":[210],"model":[211],"repeated":[213],"measures.":[214],"Lastly,":[215],"absolute":[217],"percentage":[218],"error":[219],"(MAPE)":[220],"calculated":[229],"against":[230],"RESULTS:":[233],"Average":[234],"HRs":[235],"(mean":[236],"SD)":[238],"PHR,":[240],"non-dominant,":[242],"75.6":[247],"18.5":[249],"bpm,":[250,254,259],"72.8":[251],"16.7":[253],"73.9":[256],"17.06":[258],"coefficients":[263],"(r)":[264],"r=.805":[274],"r=.793,":[276],"MAPE":[278],"9.17":[280],"10.9%":[282],"9.71":[287],"12.4%":[289],"dominant.":[293],"ANOVA":[294],"post-hoc":[296],"analyses":[297],"Bonferroni":[299],"revealed":[300],"significant":[301],"estimating":[304],"wrist":[309,314],"(p=.001)":[310,315],"compared":[316],"monitor.":[319],"CONCLUSION:":[320],"results":[322],"indicated":[323],"wrist-oriented":[326],"device":[330],"does":[331],"not":[332],"provide":[333],"an":[334],"accurate":[335],"measurement":[336],"during":[339],"condition":[341],"However,":[345],"further":[346],"research":[347],"needed":[349],"validate":[351],"these":[352],"larger":[356],"sample":[357],"different":[359],"population":[360],"groups.":[361]},"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2022,"cited_by_count":1},{"year":2019,"cited_by_count":2},{"year":2018,"cited_by_count":2},{"year":2017,"cited_by_count":2}],"updated_date":"2026-11-04T10:54:05.112534","created_date":"2016-07-22T00:00:00"}
