{"id":"https://openalex.org/W2319003636","doi":"https://doi.org/10.1249/01.mss.0000402608.35606.be","title":"Sex-dependent Association Between Daily Physical Activity And Ventilatory Threshold In Older Adults","display_name":"Sex-dependent Association Between Daily Physical Activity And Ventilatory Threshold In Older Adults","publication_year":2011,"publication_date":"2011-05-01","ids":{"openalex":"https://openalex.org/W2319003636","doi":"https://doi.org/10.1249/01.mss.0000402608.35606.be","mag":"2319003636"},"language":"en","primary_location":{"id":"doi:10.1249/01.mss.0000402608.35606.be","doi":"https://doi.org/10.1249/01.mss.0000402608.35606.be","is_oa":false,"landing_page_url":"https://doi.org/10.1249/01.mss.0000402608.35606.be","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","indexed_in":["crossref"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5018384128","display_name":"Joaquin U. Gonzales","orcid":"https://orcid.org/0000-0002-6629-8511","observed_orcids":["https://orcid.org/0000-0002-6629-8511"]},"institutions":[{"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"]},{"id":"https://openalex.org/I130769515","display_name":"Pennsylvania State University","ror":"https://ror.org/04p491231","country_code":"US","type":"education","lineage":["https://openalex.org/I130769515"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Joaquin U. Gonzales","raw_affiliation_strings":["(No relationships reported)","1Texas Tech University, Lubbock, TX. 2Pennsylvania State University, University Park, PA","Email: [email\u00a0protected]"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"(No relationships reported)","institution_ids":[]},{"raw_affiliation_string":"1Texas Tech University, Lubbock, TX. 2Pennsylvania State University, University Park, PA","institution_ids":["https://openalex.org/I12315562","https://openalex.org/I130769515"]},{"raw_affiliation_string":"Email: [email\u00a0protected]","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5085530943","display_name":"Steven H. Tucker","orcid":"https://orcid.org/0000-0002-3588-3072","observed_orcids":["https://orcid.org/0000-0002-3588-3072"]},"institutions":[{"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"]},{"id":"https://openalex.org/I130769515","display_name":"Pennsylvania State University","ror":"https://ror.org/04p491231","country_code":"US","type":"education","lineage":["https://openalex.org/I130769515"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Steven H. Tucker","raw_affiliation_strings":["(No relationships reported)","1Texas Tech University, Lubbock, TX. 2Pennsylvania State University, University Park, PA","Email: [email\u00a0protected]"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"(No relationships reported)","institution_ids":[]},{"raw_affiliation_string":"1Texas Tech University, Lubbock, TX. 2Pennsylvania State University, University Park, PA","institution_ids":["https://openalex.org/I12315562","https://openalex.org/I130769515"]},{"raw_affiliation_string":"Email: [email\u00a0protected]","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5045857695","display_name":"Martha J. Kalasky","orcid":null,"observed_orcids":[]},"institutions":[{"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"]},{"id":"https://openalex.org/I130769515","display_name":"Pennsylvania State University","ror":"https://ror.org/04p491231","country_code":"US","type":"education","lineage":["https://openalex.org/I130769515"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Martha J. Kalasky","raw_affiliation_strings":["(No relationships reported)","1Texas Tech University, Lubbock, TX. 2Pennsylvania State University, University Park, PA","Email: [email\u00a0protected]"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"(No relationships reported)","institution_ids":[]},{"raw_affiliation_string":"1Texas Tech University, Lubbock, TX. 2Pennsylvania State University, University Park, PA","institution_ids":["https://openalex.org/I12315562","https://openalex.org/I130769515"]},{"raw_affiliation_string":"Email: [email\u00a0protected]","institution_ids":[]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5041482139","display_name":"David N. Proctor","orcid":"https://orcid.org/0000-0002-4691-4575","observed_orcids":["https://orcid.org/0000-0002-4691-4575"]},"institutions":[{"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"]},{"id":"https://openalex.org/I130769515","display_name":"Pennsylvania State University","ror":"https://ror.org/04p491231","country_code":"US","type":"education","lineage":["https://openalex.org/I130769515"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"David N. Proctor","raw_affiliation_strings":["(No relationships reported)","1Texas Tech University, Lubbock, TX. 2Pennsylvania State University, University Park, PA","Email: [email\u00a0protected]"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"(No relationships reported)","institution_ids":[]},{"raw_affiliation_string":"1Texas Tech University, Lubbock, TX. 2Pennsylvania State University, University Park, PA","institution_ids":["https://openalex.org/I12315562","https://openalex.org/I130769515"]},{"raw_affiliation_string":"Email: [email\u00a0protected]","institution_ids":[]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":1,"citation_normalized_percentile":{"value":0.27085208,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":93,"max":96},"biblio":{"volume":"43","issue":"5","first_page":"934","last_page":"934"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11209","display_name":"Cardiovascular and exercise physiology","score":0.98580002784729,"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"}},"topics":[{"id":"https://openalex.org/T11209","display_name":"Cardiovascular and exercise physiology","score":0.98580002784729,"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/T10352","display_name":"Physical Activity and Health","score":0.013700000010430813,"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/T10157","display_name":"Sports Performance and Training","score":9.999999747378752e-05,"subfield":{"id":"https://openalex.org/subfields/2732","display_name":"Orthopedics and Sports Medicine"},"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/ventilatory-threshold","display_name":"ventilatory threshold","score":0.9990000128746033},{"id":"https://openalex.org/keywords/moderate-to-vigorous-physical-activity","display_name":"moderate-to-vigorous physical activity","score":0.8339999914169312},{"id":"https://openalex.org/keywords/cardiorespiratory-fitness","display_name":"cardiorespiratory fitness","score":0.8370000123977661},{"id":"https://openalex.org/keywords/vo2max","display_name":"VO2max","score":0.9629999995231628},{"id":"https://openalex.org/keywords/sex-differences","display_name":"sex differences","score":0.8759999871253967},{"id":"https://openalex.org/keywords/aging","display_name":"aging","score":0.7860000133514404},{"id":"https://openalex.org/keywords/older-adults","display_name":"older adults","score":0.984000027179718},{"id":"https://openalex.org/keywords/accelerometry","display_name":"accelerometry","score":0.5550000071525574},{"id":"https://openalex.org/keywords/ventilatory-equivalents","display_name":"ventilatory equivalents","score":0.656000018119812},{"id":"https://openalex.org/keywords/v-slope-method","display_name":"V-slope method","score":0.765999972820282},{"id":"https://openalex.org/keywords/fat-free-mass","display_name":"fat-free mass","score":0.7049999833106995}],"concepts":[{"id":"https://openalex.org/C117437137","wikidata":"https://www.wikidata.org/wiki/Q5038720","display_name":"Cardiorespiratory fitness","level":2,"score":0.879623293876648},{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.7735010385513306},{"id":"https://openalex.org/C196310339","wikidata":"https://www.wikidata.org/wiki/Q60354","display_name":"VO2 max","level":4,"score":0.6840336322784424},{"id":"https://openalex.org/C2778560200","wikidata":"https://www.wikidata.org/wiki/Q23807967","display_name":"Ventilatory threshold","level":5,"score":0.6354098320007324},{"id":"https://openalex.org/C3020255362","wikidata":"https://www.wikidata.org/wiki/Q747883","display_name":"Physical activity","level":2,"score":0.5766814351081848},{"id":"https://openalex.org/C116254018","wikidata":"https://www.wikidata.org/wiki/Q2919458","display_name":"Respiratory exchange ratio","level":4,"score":0.5463185906410217},{"id":"https://openalex.org/C190512316","wikidata":"https://www.wikidata.org/wiki/Q1924756","display_name":"Metabolic equivalent","level":3,"score":0.5373709797859192},{"id":"https://openalex.org/C126322002","wikidata":"https://www.wikidata.org/wiki/Q11180","display_name":"Internal medicine","level":1,"score":0.5047785043716431},{"id":"https://openalex.org/C2781464450","wikidata":"https://www.wikidata.org/wiki/Q839144","display_name":"Treadmill","level":2,"score":0.5036026835441589},{"id":"https://openalex.org/C98488077","wikidata":"https://www.wikidata.org/wiki/Q1428512","display_name":"Respiratory quotient","level":2,"score":0.45812758803367615},{"id":"https://openalex.org/C1862650","wikidata":"https://www.wikidata.org/wiki/Q186005","display_name":"Physical therapy","level":1,"score":0.4512082040309906},{"id":"https://openalex.org/C164705383","wikidata":"https://www.wikidata.org/wiki/Q10379","display_name":"Cardiology","level":1,"score":0.3778235614299774},{"id":"https://openalex.org/C2777953023","wikidata":"https://www.wikidata.org/wiki/Q1073121","display_name":"Heart rate","level":3,"score":0.282375693321228},{"id":"https://openalex.org/C84393581","wikidata":"https://www.wikidata.org/wiki/Q82642","display_name":"Blood pressure","level":2,"score":0.1990513801574707}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1249/01.mss.0000402608.35606.be","doi":"https://doi.org/10.1249/01.mss.0000402608.35606.be","is_oa":false,"landing_page_url":"https://doi.org/10.1249/01.mss.0000402608.35606.be","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"}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/3","display_name":"Good health and well-being","score":0.98580002784729}],"study_designs":[{"id":"https://openalex.org/study-designs/observational-study","display_name":"Observational Study"}],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":0,"referenced_works":[],"related_works":["https://openalex.org/W2427599596","https://openalex.org/W2073051092","https://openalex.org/W2225006695","https://openalex.org/W2130291040","https://openalex.org/W2104387269","https://openalex.org/W4411396935","https://openalex.org/W1982365255","https://openalex.org/W1986977784","https://openalex.org/W2143027329","https://openalex.org/W2276005333"],"abstract_inverted_index":{"The":[0],"ventilatory":[1,236],"threshold":[2,237],"(VT)":[3],"is":[4,38,219],"considered":[5],"an":[6,202],"index":[7],"of":[8,242],"cardiorespiratory":[9],"fitness":[10],"and":[11,22,34,65,70,80,110,113,133,195],"has":[12,43],"been":[13,28],"shown":[14,29],"to":[15,30,93,118,137],"reflect":[16],"metabolic":[17,23],"alterations":[18,233],"with":[19,189,204,221],"age.":[20],"Cardiovascular":[21],"changes":[24,49],"during":[25,101],"aging":[26],"have":[27],"differ":[31],"between":[32,50,57,148,174],"women":[33,69,74,192,212],"men;":[35],"however,":[36,199],"it":[37],"unclear":[39],"if":[40],"physical":[41,59,122,143,217,244],"activity":[42,123,144,218,245],"a":[44,88],"similar":[45,147,173],"impact":[46],"on":[47],"these":[48],"sexes.":[51],"PURPOSE:":[52],"To":[53],"determine":[54],"the":[55,235],"association":[56,203],"daily":[58],"activity,":[60],"maximal":[61,89],"oxygen":[62,109],"uptake":[63],"(VO2max),":[64],"VT":[66,134,171,205,222],"in":[67,191,206,223,234,246],"older":[68,224,247],"men.":[71],"METHODS:":[72],"Healthy":[73],"(n=24,":[75],"65":[76,83],"\u00b1":[77,84,152,157,178,183],"6":[78],"yrs)":[79,86],"men":[81,166,196,207,225],"(n=18,":[82],"5":[85,179,184],"performed":[87],"graded":[90],"treadmill":[91],"test":[92],"volitional":[94],"fatigue.":[95],"Pulmonary":[96],"gas":[97],"exchange":[98],"was":[99,124,146,172,187],"measured":[100,125],"exercise":[102],"using":[103,126],"indirect":[104],"calorimetry.":[105],"Ventilatory":[106],"equivalents":[107],"for":[108,129],"carbon":[111],"dioxide":[112],"V-slope":[114],"method":[115],"were":[116,135],"used":[117],"estimate":[119],"VT.":[120],"Daily":[121],"accelerometers":[127],"worn":[128],"4":[130],"days.":[131],"VO2max":[132,164,190],"normalized":[136],"DEXA-derived":[138],"fat-free":[139],"mass.":[140],"RESULTS:":[141],"Moderate-to-vigorous":[142,216],"(MVPA)":[145],"sexes":[149,175],"(women:":[150,176],"84":[151],"40":[153],"vs.":[154,180],"men:":[155,181],"109":[156],"51":[158],"min/day,":[159],"P=0.09).":[160],"Women":[161],"had":[162],"lower":[163],"than":[165],"(P<0.05),":[167],"but":[168,210,226],"VO2":[169],"at":[170],"23":[177],"24":[182],"ml/kg/min).":[185],"MVPA":[186,200],"associated":[188,220],"(r=0.49,":[193],"P<0.05)":[194,209],"(r=0.54,":[197],"P<0.05);":[198],"showed":[201],"(r=0.57,":[208],"not":[211,227],"(r=0.31,":[213],"P=0.14).":[214],"CONCLUSION:":[215],"women.":[228,248],"This":[229],"finding":[230],"suggests":[231],"that":[232],"may":[238],"require":[239],"higher":[240],"levels":[241],"habitual":[243]},"counts_by_year":[{"year":2026,"cited_by_count":1}],"updated_date":"2026-09-26T08:19:03.415552","created_date":"2016-06-24T00:00:00"}
