{"id":"https://openalex.org/W2014229115","doi":"https://doi.org/10.1249/mss.0b013e318184a4b1","title":"Validity and Reliability of Short-Term Heart-Rate Variability from the Polar S810","display_name":"Validity and Reliability of Short-Term Heart-Rate Variability from the Polar S810","publication_year":2008,"publication_date":"2008-12-24","ids":{"openalex":"https://openalex.org/W2014229115","doi":"https://doi.org/10.1249/mss.0b013e318184a4b1","mag":"2014229115","pmid":"https://pubmed.ncbi.nlm.nih.gov/19092682"},"language":"en","primary_location":{"id":"doi:10.1249/mss.0b013e318184a4b1","doi":"https://doi.org/10.1249/mss.0b013e318184a4b1","is_oa":false,"landing_page_url":"https://doi.org/10.1249/mss.0b013e318184a4b1","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","datacite","pubmed"],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"https://doi.org/10.25405/ncl.34095657","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5006934600","display_name":"David Nunan","orcid":"https://orcid.org/0000-0003-4597-1276","observed_orcids":["https://orcid.org/0000-0003-4597-1276"]},"institutions":[{"id":"https://openalex.org/I19668297","display_name":"Buckinghamshire New University","ror":"https://ror.org/02q3bak66","country_code":"GB","type":"education","lineage":["https://openalex.org/I19668297"]}],"countries":["GB"],"is_corresponding":false,"raw_author_name":"DAVID NUNAN","raw_affiliation_strings":["Research Centre for Society and Health, Buckinghamshire New University, Gorelands Lane, Chalfont St Giles, Buckinghamshire, United Kingdom. dnunan01@bcuc.ac.uk","Research Centre for Society and Health, Buckinghamshire New University, Chalfont St Giles, UNITED KINGDOM"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Research Centre for Society and Health, Buckinghamshire New University, Gorelands Lane, Chalfont St Giles, Buckinghamshire, United Kingdom. dnunan01@bcuc.ac.uk","institution_ids":["https://openalex.org/I19668297"]},{"raw_affiliation_string":"Research Centre for Society and Health, Buckinghamshire New University, Chalfont St Giles, UNITED KINGDOM","institution_ids":["https://openalex.org/I19668297"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5110449006","display_name":"Gay Donovan","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I19668297","display_name":"Buckinghamshire New University","ror":"https://ror.org/02q3bak66","country_code":"GB","type":"education","lineage":["https://openalex.org/I19668297"]}],"countries":["GB"],"is_corresponding":false,"raw_author_name":"GAY DONOVAN","raw_affiliation_strings":["Research Centre for Society and Health, Buckinghamshire New University, Chalfont St Giles, UNITED KINGDOM"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Research Centre for Society and Health, Buckinghamshire New University, Chalfont St Giles, UNITED KINGDOM","institution_ids":["https://openalex.org/I19668297"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5031886828","display_name":"Djordje G. Jakovljevi\u0107","orcid":"https://orcid.org/0000-0003-2686-6542","observed_orcids":["https://orcid.org/0000-0003-2686-6542"]},"institutions":[{"id":"https://openalex.org/I19668297","display_name":"Buckinghamshire New University","ror":"https://ror.org/02q3bak66","country_code":"GB","type":"education","lineage":["https://openalex.org/I19668297"]}],"countries":["GB"],"is_corresponding":false,"raw_author_name":"DJORDJE G. JAKOVLJEVIC","raw_affiliation_strings":["Research Centre for Society and Health, Buckinghamshire New University, Chalfont St Giles, UNITED KINGDOM"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Research Centre for Society and Health, Buckinghamshire New University, Chalfont St Giles, UNITED KINGDOM","institution_ids":["https://openalex.org/I19668297"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5073042870","display_name":"Lynette D. Hodges","orcid":"https://orcid.org/0000-0001-7482-0499","observed_orcids":["https://orcid.org/0000-0001-7482-0499"]},"institutions":[{"id":"https://openalex.org/I147554453","display_name":"University of Bedfordshire","ror":"https://ror.org/0400avk24","country_code":"GB","type":"education","lineage":["https://openalex.org/I147554453"]}],"countries":["GB"],"is_corresponding":false,"raw_author_name":"LYNETTE D. HODGES","raw_affiliation_strings":["Department of Sport and Exercise Science, University of Bedfordshire, Bedfordshire, UNITED KINGDOM","Department of Sport and Exercise Science, University of Bedfordshire, Bedfordshire, UNITED KINGDOM; and"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Sport and Exercise Science, University of Bedfordshire, Bedfordshire, UNITED KINGDOM","institution_ids":["https://openalex.org/I147554453"]},{"raw_affiliation_string":"Department of Sport and Exercise Science, University of Bedfordshire, Bedfordshire, UNITED KINGDOM; and","institution_ids":["https://openalex.org/I147554453"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5041971634","display_name":"GAVIN R. H. SANDERCOCK","orcid":"https://orcid.org/0000-0002-5443-6518","observed_orcids":["https://orcid.org/0000-0002-5443-6518"]},"institutions":[{"id":"https://openalex.org/I110002522","display_name":"University of Essex","ror":"https://ror.org/02nkf1q06","country_code":"GB","type":"education","lineage":["https://openalex.org/I110002522"]}],"countries":["GB"],"is_corresponding":false,"raw_author_name":"GAVIN R. H. SANDERCOCK","raw_affiliation_strings":["Centre for Sports and Exercise Science, University of Essex, Colchester, UNITED KINGDOM"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Centre for Sports and Exercise Science, University of Essex, Colchester, UNITED KINGDOM","institution_ids":["https://openalex.org/I110002522"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5111750095","display_name":"David A. Brodie","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I19668297","display_name":"Buckinghamshire New University","ror":"https://ror.org/02q3bak66","country_code":"GB","type":"education","lineage":["https://openalex.org/I19668297"]}],"countries":["GB"],"is_corresponding":false,"raw_author_name":"DAVID A. BRODIE","raw_affiliation_strings":["Research Centre for Society and Health, Buckinghamshire New University, Chalfont St Giles, UNITED KINGDOM"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Research Centre for Society and Health, Buckinghamshire New University, Chalfont St Giles, UNITED KINGDOM","institution_ids":["https://openalex.org/I19668297"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":9.4209,"has_fulltext":false,"cited_by_count":321,"citation_normalized_percentile":{"value":0.98340256,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":96,"max":100},"biblio":{"volume":"41","issue":"1","first_page":"243","last_page":"250"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10745","display_name":"Heart Rate Variability and Autonomic Control","score":0.9976000189781189,"subfield":{"id":"https://openalex.org/subfields/2705","display_name":"Cardiology and Cardiovascular Medicine"},"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/T10745","display_name":"Heart Rate Variability and Autonomic Control","score":0.9976000189781189,"subfield":{"id":"https://openalex.org/subfields/2705","display_name":"Cardiology and Cardiovascular 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/T11196","display_name":"Non-Invasive Vital Sign Monitoring","score":0.0010000000474974513,"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/T11209","display_name":"Cardiovascular and exercise physiology","score":0.0003000000142492354,"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/heart-rate-variability","display_name":"heart rate variability","score":0.9700000286102295},{"id":"https://openalex.org/keywords/heart-rate-monitors","display_name":"heart rate monitors","score":0.6620000004768372},{"id":"https://openalex.org/keywords/device-validity","display_name":"device validity","score":0.6510000228881836},{"id":"https://openalex.org/keywords/test-retest-reliability","display_name":"test-retest reliability","score":0.7950000166893005},{"id":"https://openalex.org/keywords/rr-interval","display_name":"RR interval","score":0.6510000228881836},{"id":"https://openalex.org/keywords/spectral-power","display_name":"spectral power","score":0.593999981880188},{"id":"https://openalex.org/keywords/intra-individual-variability","display_name":"within-person variability","score":0.6850000023841858},{"id":"https://openalex.org/keywords/resting-heart-rate","display_name":"resting heart rate","score":0.5370000004768372}],"concepts":[{"id":"https://openalex.org/C71635504","wikidata":"https://www.wikidata.org/wiki/Q933954","display_name":"Heart rate variability","level":4,"score":0.6966371536254883},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.6364221572875977},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.584259569644928},{"id":"https://openalex.org/C43214815","wikidata":"https://www.wikidata.org/wiki/Q7310987","display_name":"Reliability (semiconductor)","level":3,"score":0.486640065908432},{"id":"https://openalex.org/C139945424","wikidata":"https://www.wikidata.org/wiki/Q1940696","display_name":"Mean squared error","level":2,"score":0.4692430794239044},{"id":"https://openalex.org/C29705727","wikidata":"https://www.wikidata.org/wiki/Q294562","display_name":"Polar","level":2,"score":0.4625534117221832},{"id":"https://openalex.org/C2908688587","wikidata":"https://www.wikidata.org/wiki/Q933954","display_name":"RR interval","level":5,"score":0.4121338427066803},{"id":"https://openalex.org/C2777953023","wikidata":"https://www.wikidata.org/wiki/Q1073121","display_name":"Heart rate","level":3,"score":0.35085827112197876},{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.275290310382843},{"id":"https://openalex.org/C126322002","wikidata":"https://www.wikidata.org/wiki/Q11180","display_name":"Internal medicine","level":1,"score":0.2299085259437561},{"id":"https://openalex.org/C163258240","wikidata":"https://www.wikidata.org/wiki/Q25342","display_name":"Power (physics)","level":2,"score":0.22114184498786926},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.13028109073638916},{"id":"https://openalex.org/C84393581","wikidata":"https://www.wikidata.org/wiki/Q82642","display_name":"Blood pressure","level":2,"score":0.07856953144073486},{"id":"https://openalex.org/C1276947","wikidata":"https://www.wikidata.org/wiki/Q333","display_name":"Astronomy","level":1,"score":0.0},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.0}],"mesh":[{"descriptor_ui":"D000328","descriptor_name":"Adult","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D000465","descriptor_name":"Algorithms","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D005260","descriptor_name":"Female","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D006339","descriptor_name":"Heart Rate","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D006801","descriptor_name":"Humans","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D008297","descriptor_name":"Male","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D008875","descriptor_name":"Middle Aged","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D011795","descriptor_name":"Surveys and Questionnaires","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D012044","descriptor_name":"Regression Analysis","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D012984","descriptor_name":"Software","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D013997","descriptor_name":"Time Factors","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D015203","descriptor_name":"Reproducibility of Results","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D015716","descriptor_name":"Electrocardiography, Ambulatory","qualifier_ui":"Q000295","qualifier_name":"instrumentation","is_major_topic":true},{"descriptor_ui":"D016001","descriptor_name":"Confidence Intervals","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false}],"locations_count":6,"locations":[{"id":"doi:10.1249/mss.0b013e318184a4b1","doi":"https://doi.org/10.1249/mss.0b013e318184a4b1","is_oa":false,"landing_page_url":"https://doi.org/10.1249/mss.0b013e318184a4b1","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":"pmid:19092682","doi":null,"is_oa":false,"landing_page_url":"https://pubmed.ncbi.nlm.nih.gov/19092682","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,"listed_in":[],"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":"Medicine and science in sports and exercise","raw_type":"Journal Article"},{"id":"pmh:oai:bucks.collections.crest.ac.uk:9800","doi":null,"is_oa":false,"landing_page_url":"http://bucks.collections.crest.ac.uk/9800/","pdf_url":null,"source":{"id":"https://openalex.org/S4306400999","display_name":"Bucks New University Repository (Bucks New University)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I19668297","host_organization_name":"Buckinghamshire New University","host_organization_lineage":["https://openalex.org/I19668297"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"Article"},{"id":"pmh:oai:repository.essex.ac.uk:953","doi":null,"is_oa":false,"landing_page_url":"http://repository.essex.ac.uk/953/","pdf_url":null,"source":{"id":"https://openalex.org/S4306401236","display_name":"Open Access at Essex (University of Essex)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I110002522","host_organization_name":"University of Essex","host_organization_lineage":["https://openalex.org/I110002522"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"Article"},{"id":"doi:10.25405/ncl.34095657","doi":"https://doi.org/10.25405/ncl.34095657","is_oa":true,"landing_page_url":"https://doi.org/10.25405/ncl.34095657","pdf_url":null,"source":{"id":"https://openalex.org/S4306402485","display_name":"Newcastle University ePrints (Newcastle Univesity)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I84884186","host_organization_name":"Newcastle University","host_organization_lineage":["https://openalex.org/I84884186"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":null,"is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"JournalArticle"},{"id":"doi:10.25405/ncl.34095657.v1","doi":"https://doi.org/10.25405/ncl.34095657.v1","is_oa":true,"landing_page_url":"https://doi.org/10.25405/ncl.34095657.v1","pdf_url":null,"source":{"id":"https://openalex.org/S4306402485","display_name":"Newcastle University ePrints (Newcastle Univesity)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I84884186","host_organization_name":"Newcastle University","host_organization_lineage":["https://openalex.org/I84884186"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":null,"is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"JournalArticle"}],"best_oa_location":{"id":"doi:10.25405/ncl.34095657","doi":"https://doi.org/10.25405/ncl.34095657","is_oa":true,"landing_page_url":"https://doi.org/10.25405/ncl.34095657","pdf_url":null,"source":{"id":"https://openalex.org/S4306402485","display_name":"Newcastle University ePrints (Newcastle Univesity)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I84884186","host_organization_name":"Newcastle University","host_organization_lineage":["https://openalex.org/I84884186"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":null,"is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"JournalArticle"},"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/3","score":0.8371999859809875,"display_name":"Good health and well-being"}],"study_designs":[],"awards":[{"id":"https://openalex.org/G3757331920","display_name":"Establishment of a Muscle Assessment and Training Laboratory at Newcastle University","funder_award_id":"MC_G0802536","funder_id":"https://openalex.org/F4320334626","funder_display_name":"Medical Research Council"}],"funders":[{"id":"https://openalex.org/F4320334626","display_name":"Medical Research Council","ror":"https://ror.org/03x94j517"}],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":43,"referenced_works":["https://openalex.org/W143886504","https://openalex.org/W615580932","https://openalex.org/W1553734271","https://openalex.org/W1964536565","https://openalex.org/W1967670111","https://openalex.org/W1969502561","https://openalex.org/W1971587986","https://openalex.org/W1977084087","https://openalex.org/W1980756938","https://openalex.org/W1990044317","https://openalex.org/W1996753630","https://openalex.org/W2017185135","https://openalex.org/W2033834589","https://openalex.org/W2034656671","https://openalex.org/W2041103277","https://openalex.org/W2041660097","https://openalex.org/W2042273803","https://openalex.org/W2047748360","https://openalex.org/W2050057188","https://openalex.org/W2051357780","https://openalex.org/W2054936240","https://openalex.org/W2061017100","https://openalex.org/W2063939412","https://openalex.org/W2064072296","https://openalex.org/W2070421542","https://openalex.org/W2073535145","https://openalex.org/W2082953463","https://openalex.org/W2084181053","https://openalex.org/W2096632664","https://openalex.org/W2101708014","https://openalex.org/W2111840911","https://openalex.org/W2124317955","https://openalex.org/W2133589238","https://openalex.org/W2135044146","https://openalex.org/W2136671448","https://openalex.org/W2138377126","https://openalex.org/W2141403362","https://openalex.org/W2154061006","https://openalex.org/W2164826114","https://openalex.org/W2167311226","https://openalex.org/W2170785660","https://openalex.org/W2285072859","https://openalex.org/W2373314331"],"related_works":["https://openalex.org/W2136671448","https://openalex.org/W7220672825","https://openalex.org/W2151016759","https://openalex.org/W2210949426","https://openalex.org/W2062723811","https://openalex.org/W2521465301","https://openalex.org/W2269729484","https://openalex.org/W4317396515","https://openalex.org/W4306796197","https://openalex.org/W2073792739"],"abstract_inverted_index":{"PURPOSE:":[0],":":[1,27,161,232],"To":[2],"assess":[3],"the":[4,7,18,62,73,89,113,119,128,132,167,170,177,180,205,208,222,226,237,257,284],"validity":[5,87],"and":[6,23,45,97,127,131,137,149,151,169,176,207,240,286],"reliability":[8,100],"of":[9,29,51,67,86,88,99,101,108,112,115,123,174,196,229,267],"short-term":[10],"resting":[11],"heart-rate":[12,21],"variability":[13,224],"(HRV)":[14],"measures":[15,66,98,173,195,234,258],"obtained":[16,32,70,235],"using":[17,61,72],"Polar":[19,63,90,168,185,212,238,285],"S810":[20,91,186,213,239],"monitor":[22],"accompanying":[24,241],"software.":[25],"METHODS:":[26],"Measures":[28,85,111],"HRV":[30,68,197,233,268],"were":[31,69,92,104,141,156,163],"from":[33,269],"5-min":[34,276],"R":[35,37],"to":[36,200,221,280],"wave":[38],"(RR)":[39],"interval":[40],"data":[41],"for":[42,193,204],"19":[43],"males":[44],"14":[46],"females":[47],"during":[48],"10":[49,272],"min":[50],"quiet":[52],"rest":[53],"on":[54],"three":[55],"separate":[56],"occasions":[57],"at":[58],"1-wk":[59,264],"intervals":[60,117],"S810.":[64],"Criterion":[65],"simultaneously":[71],"CardioPerfect":[74],"(CP;":[75],"Medical":[76],"Graphics":[77],"Corporation,":[78],"St":[79],"Paul,":[80],"MN)":[81],"12-lead":[82],"ECG":[83],"module.":[84],"estimated":[93,105],"by":[94,106],"regression":[95],"analysis,":[96],"both":[102],"devices":[103],"analysis":[107],"change":[109],"scores.":[110],"SD":[114],"normal-to-normal":[116],"(SDNN),":[118],"root":[120],"mean":[121,147,172],"square":[122],"successive":[124],"differences":[125,165,181],"(RMSSD),":[126],"low-frequency":[129],"(LF)":[130],"high-frequency":[133,209],"(HF)":[134],"spectral":[135],"power":[136],"their":[138],"ratio":[139],"(LF/HF)":[140],"analyzed":[142,157],"after":[143],"log":[144],"transformation,":[145],"whereas":[146],"RR":[148,277],"LF":[150],"HF":[152],"in":[153,179,225,251],"normalized":[154,210],"units":[155],"without":[158],"transformation.":[159],"RESULTS:":[160],"There":[162],"marginal":[164],"between":[166],"CP":[171,192],"HRV,":[175],"uncertainty":[178],"was":[182],"small.":[183],"The":[184],"demonstrated":[187],"high":[188],"correlations":[189],"(0.85-0.99)":[190],"with":[191,236,253,283],"all":[194],"indicating":[198],"good":[199],"near-perfect":[201],"validity.":[202],"Except":[203],"low-":[206],"units,":[211],"did":[214],"not":[215],"add":[216],"any":[217],"substantial":[218],"technical":[219],"error":[220,250],"within-subject":[223],"repeated":[227],"measurements":[228],"HRV.":[230],"CONCLUSION:":[231],"software":[242],"have":[243],"no":[244],"appreciable":[245],"bias":[246],"or":[247],"additional":[248],"random":[249],"comparison":[252],"criterion":[254,287],"measures,":[255],"but":[256],"are":[259],"inherently":[260],"unreliable":[261],"over":[262],"a":[263],"interval.":[265],"Reliability":[266],"longer":[270],"(e.g.,":[271],"min)":[273],"and/or":[274],"consecutive":[275],"recordings":[278],"needs":[279],"be":[281],"investigated":[282],"instruments.":[288]},"counts_by_year":[{"year":2026,"cited_by_count":3},{"year":2025,"cited_by_count":4},{"year":2024,"cited_by_count":17},{"year":2023,"cited_by_count":8},{"year":2022,"cited_by_count":20},{"year":2021,"cited_by_count":20},{"year":2020,"cited_by_count":18},{"year":2019,"cited_by_count":20},{"year":2018,"cited_by_count":28},{"year":2017,"cited_by_count":18},{"year":2016,"cited_by_count":27},{"year":2015,"cited_by_count":23},{"year":2014,"cited_by_count":29},{"year":2013,"cited_by_count":23},{"year":2012,"cited_by_count":23}],"updated_date":"2026-11-07T11:25:07.637180","created_date":"2016-06-24T00:00:00"}
