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Leg Strength is Associated with Ventilatory Efficiency in Older Women
Abstract The aim of the present study was to determine if leg function is associated with ventilatory efficiency during exercise in healthy older adults. 24 women and 18 men aged 60–80 years performed treadmill exercise to fatigue for calculation of ventilatory efficiency using the ratio of ventilat...
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| Published in: | International journal of sports medicine 2012-07, Vol.33 (7), p.537-542 |
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| Main Authors: | , , , |
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| Language: | English |
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| container_end_page | 542 |
| container_issue | 7 |
| container_start_page | 537 |
| container_title | International journal of sports medicine |
| container_volume | 33 |
| creator | Gonzales, J. U. Tucker, S. H. Kalasky, M. J. Proctor, D. N. |
| description | Abstract
The aim of the present study was to determine if leg function is associated with ventilatory efficiency during exercise in healthy older adults. 24 women and 18 men aged 60–80 years performed treadmill exercise to fatigue for calculation of ventilatory efficiency using the ratio of ventilation to carbon dioxide at the anaerobic threshold (VE/VCO
2
@AT). On a separate day, participants performed leg strength testing and graded single-leg knee extension exercise. The VE/VCO
2
@AT was higher in women than men (33±3 vs. 30±3; p=0.03). After adjustment for age and VO
2max
, leg strength (knee extensor isometric force) was inversely associated with VE/VCO
2
@AT in women (r= − 0.44, p=0.03) while no relationships were found for men. Strength-matched women and men had similar VE/VCO
2
@AT indicating that the correlation between leg strength and VE/VCO
2
@AT was strength- but not sex-specific. During knee extensor exercise, women with lower leg strength had increased VE/VCO
2
slope across 0–15 W as compared to higher strength women (38±8 vs. 31±3; p |
| doi_str_mv | 10.1055/s-0032-1304659 |
| format | article |
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The aim of the present study was to determine if leg function is associated with ventilatory efficiency during exercise in healthy older adults. 24 women and 18 men aged 60–80 years performed treadmill exercise to fatigue for calculation of ventilatory efficiency using the ratio of ventilation to carbon dioxide at the anaerobic threshold (VE/VCO
2
@AT). On a separate day, participants performed leg strength testing and graded single-leg knee extension exercise. The VE/VCO
2
@AT was higher in women than men (33±3 vs. 30±3; p=0.03). After adjustment for age and VO
2max
, leg strength (knee extensor isometric force) was inversely associated with VE/VCO
2
@AT in women (r= − 0.44, p=0.03) while no relationships were found for men. Strength-matched women and men had similar VE/VCO
2
@AT indicating that the correlation between leg strength and VE/VCO
2
@AT was strength- but not sex-specific. During knee extensor exercise, women with lower leg strength had increased VE/VCO
2
slope across 0–15 W as compared to higher strength women (38±8 vs. 31±3; p<0.05), while no differences were found for men. These results find leg strength to be associated with ventilatory responses to exercise in healthy older women, a finding that might be related to lower leg strength in women than men.</description><identifier>ISSN: 0172-4622</identifier><identifier>EISSN: 1439-3964</identifier><identifier>DOI: 10.1055/s-0032-1304659</identifier><identifier>PMID: 22499568</identifier><identifier>CODEN: IJSMDA</identifier><language>eng</language><publisher>Stuttgart · New York: Georg Thieme Verlag KG</publisher><subject>Age Factors ; Aged ; Aged, 80 and over ; Anaerobic Threshold ; Biological and medical sciences ; Carbon Dioxide - metabolism ; Efficiency ; Exercise (intensity) ; Exercise Test ; Female ; Fundamental and applied biological sciences. Psychology ; Gerontology ; Health ; Humans ; Knee - physiology ; Knees ; Leg ; Legs ; Male ; Men ; Middle Aged ; Muscle Strength - physiology ; Physiology & Biochemistry ; Pulmonary Ventilation - physiology ; Sex Factors ; Strength ; Vertebrates: body movement. Posture. Locomotion. Flight. Swimming. Physical exercise. Rest. Sports ; Women</subject><ispartof>International journal of sports medicine, 2012-07, Vol.33 (7), p.537-542</ispartof><rights>2015 INIST-CNRS</rights><rights>Georg Thieme Verlag KG Stuttgart · New York.</rights><rights>Georg Thieme Verlag KG Stuttgart · New York</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c491t-905a7110fadbb1c50ce10b4b7db2f4b5470155a8e8c3f13bbcfc3576ccbacd8f3</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.thieme-connect.de/products/ejournals/pdf/10.1055/s-0032-1304659.pdf$$EPDF$$P50$$Gthieme$$H</linktopdf><linktohtml>$$Uhttps://www.thieme-connect.de/products/ejournals/html/10.1055/s-0032-1304659$$EHTML$$P50$$Gthieme$$H</linktohtml><link.rule.ids>230,314,780,784,885,3017,3018,27924,27925,54559,54560</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=26073545$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/22499568$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Gonzales, J. U.</creatorcontrib><creatorcontrib>Tucker, S. H.</creatorcontrib><creatorcontrib>Kalasky, M. J.</creatorcontrib><creatorcontrib>Proctor, D. N.</creatorcontrib><title>Leg Strength is Associated with Ventilatory Efficiency in Older Women</title><title>International journal of sports medicine</title><addtitle>Int J Sports Med</addtitle><description>Abstract
The aim of the present study was to determine if leg function is associated with ventilatory efficiency during exercise in healthy older adults. 24 women and 18 men aged 60–80 years performed treadmill exercise to fatigue for calculation of ventilatory efficiency using the ratio of ventilation to carbon dioxide at the anaerobic threshold (VE/VCO
2
@AT). On a separate day, participants performed leg strength testing and graded single-leg knee extension exercise. The VE/VCO
2
@AT was higher in women than men (33±3 vs. 30±3; p=0.03). After adjustment for age and VO
2max
, leg strength (knee extensor isometric force) was inversely associated with VE/VCO
2
@AT in women (r= − 0.44, p=0.03) while no relationships were found for men. Strength-matched women and men had similar VE/VCO
2
@AT indicating that the correlation between leg strength and VE/VCO
2
@AT was strength- but not sex-specific. During knee extensor exercise, women with lower leg strength had increased VE/VCO
2
slope across 0–15 W as compared to higher strength women (38±8 vs. 31±3; p<0.05), while no differences were found for men. These results find leg strength to be associated with ventilatory responses to exercise in healthy older women, a finding that might be related to lower leg strength in women than men.</description><subject>Age Factors</subject><subject>Aged</subject><subject>Aged, 80 and over</subject><subject>Anaerobic Threshold</subject><subject>Biological and medical sciences</subject><subject>Carbon Dioxide - metabolism</subject><subject>Efficiency</subject><subject>Exercise (intensity)</subject><subject>Exercise Test</subject><subject>Female</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>Gerontology</subject><subject>Health</subject><subject>Humans</subject><subject>Knee - physiology</subject><subject>Knees</subject><subject>Leg</subject><subject>Legs</subject><subject>Male</subject><subject>Men</subject><subject>Middle Aged</subject><subject>Muscle Strength - physiology</subject><subject>Physiology & Biochemistry</subject><subject>Pulmonary Ventilation - physiology</subject><subject>Sex Factors</subject><subject>Strength</subject><subject>Vertebrates: body movement. Posture. Locomotion. Flight. Swimming. Physical exercise. Rest. Sports</subject><subject>Women</subject><issn>0172-4622</issn><issn>1439-3964</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2012</creationdate><recordtype>article</recordtype><recordid>eNqFkbtvFDEQh60IRI6ENmW0TSSaDR4_9tFEiqLjIZ2UAgilZc_ad4527cTeA91_j6M7AhSIytL4m9-M_RFyBvQSqJTvck0pZzVwKhrZH5EFCN7XvG_EC7Kg0LJaNIwdk9c531MKogf-ihwzJvpeNt2CLFd2XX2ekw3reVP5XF3nHNHr2Q7VD19KdzbMftRzTLtq6ZxHbwPuKh-q23GwqfoWJxtOyUunx2zfHM4T8vX98svNx3p1--HTzfWqxjJ4rnsqdQtAnR6MAZQULVAjTDsY5oSRoqUgpe5sh9wBNwYdctk2iEbj0Dl-Qq72uQ9bM9kBy25Jj-oh-UmnnYraq79vgt-odfyueNMK0UEJeHsISPFxa_OsJp_RjqMONm6zAsY7KL_UNv9HKeOScy77gl7uUUwx52Td80ZA1ZMmldWTJnXQVBrO_3zHM_7LSwEuDoDOqEeXdECff3MNbbkUsnD1nps33k5W3cdtCsXAvwb_BF0kqUc</recordid><startdate>20120701</startdate><enddate>20120701</enddate><creator>Gonzales, J. U.</creator><creator>Tucker, S. H.</creator><creator>Kalasky, M. J.</creator><creator>Proctor, D. N.</creator><general>Georg Thieme Verlag KG</general><general>Thieme</general><scope>IQODW</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope><scope>7TS</scope><scope>5PM</scope></search><sort><creationdate>20120701</creationdate><title>Leg Strength is Associated with Ventilatory Efficiency in Older Women</title><author>Gonzales, J. U. ; Tucker, S. H. ; Kalasky, M. J. ; Proctor, D. N.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c491t-905a7110fadbb1c50ce10b4b7db2f4b5470155a8e8c3f13bbcfc3576ccbacd8f3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2012</creationdate><topic>Age Factors</topic><topic>Aged</topic><topic>Aged, 80 and over</topic><topic>Anaerobic Threshold</topic><topic>Biological and medical sciences</topic><topic>Carbon Dioxide - metabolism</topic><topic>Efficiency</topic><topic>Exercise (intensity)</topic><topic>Exercise Test</topic><topic>Female</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>Gerontology</topic><topic>Health</topic><topic>Humans</topic><topic>Knee - physiology</topic><topic>Knees</topic><topic>Leg</topic><topic>Legs</topic><topic>Male</topic><topic>Men</topic><topic>Middle Aged</topic><topic>Muscle Strength - physiology</topic><topic>Physiology & Biochemistry</topic><topic>Pulmonary Ventilation - physiology</topic><topic>Sex Factors</topic><topic>Strength</topic><topic>Vertebrates: body movement. Posture. Locomotion. Flight. Swimming. Physical exercise. Rest. Sports</topic><topic>Women</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Gonzales, J. U.</creatorcontrib><creatorcontrib>Tucker, S. H.</creatorcontrib><creatorcontrib>Kalasky, M. J.</creatorcontrib><creatorcontrib>Proctor, D. N.</creatorcontrib><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><collection>Physical Education Index</collection><collection>PubMed Central (Full Participant titles)</collection><jtitle>International journal of sports medicine</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Gonzales, J. U.</au><au>Tucker, S. H.</au><au>Kalasky, M. J.</au><au>Proctor, D. N.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Leg Strength is Associated with Ventilatory Efficiency in Older Women</atitle><jtitle>International journal of sports medicine</jtitle><addtitle>Int J Sports Med</addtitle><date>2012-07-01</date><risdate>2012</risdate><volume>33</volume><issue>7</issue><spage>537</spage><epage>542</epage><pages>537-542</pages><issn>0172-4622</issn><eissn>1439-3964</eissn><coden>IJSMDA</coden><abstract>Abstract
The aim of the present study was to determine if leg function is associated with ventilatory efficiency during exercise in healthy older adults. 24 women and 18 men aged 60–80 years performed treadmill exercise to fatigue for calculation of ventilatory efficiency using the ratio of ventilation to carbon dioxide at the anaerobic threshold (VE/VCO
2
@AT). On a separate day, participants performed leg strength testing and graded single-leg knee extension exercise. The VE/VCO
2
@AT was higher in women than men (33±3 vs. 30±3; p=0.03). After adjustment for age and VO
2max
, leg strength (knee extensor isometric force) was inversely associated with VE/VCO
2
@AT in women (r= − 0.44, p=0.03) while no relationships were found for men. Strength-matched women and men had similar VE/VCO
2
@AT indicating that the correlation between leg strength and VE/VCO
2
@AT was strength- but not sex-specific. During knee extensor exercise, women with lower leg strength had increased VE/VCO
2
slope across 0–15 W as compared to higher strength women (38±8 vs. 31±3; p<0.05), while no differences were found for men. These results find leg strength to be associated with ventilatory responses to exercise in healthy older women, a finding that might be related to lower leg strength in women than men.</abstract><cop>Stuttgart · New York</cop><pub>Georg Thieme Verlag KG</pub><pmid>22499568</pmid><doi>10.1055/s-0032-1304659</doi><tpages>6</tpages><oa>free_for_read</oa></addata></record> |
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| identifier | ISSN: 0172-4622 |
| ispartof | International journal of sports medicine, 2012-07, Vol.33 (7), p.537-542 |
| issn | 0172-4622 1439-3964 |
| language | eng |
| recordid | cdi_pubmedcentral_primary_oai_pubmedcentral_nih_gov_3674481 |
| source | Thieme Connect Journals |
| subjects | Age Factors Aged Aged, 80 and over Anaerobic Threshold Biological and medical sciences Carbon Dioxide - metabolism Efficiency Exercise (intensity) Exercise Test Female Fundamental and applied biological sciences. Psychology Gerontology Health Humans Knee - physiology Knees Leg Legs Male Men Middle Aged Muscle Strength - physiology Physiology & Biochemistry Pulmonary Ventilation - physiology Sex Factors Strength Vertebrates: body movement. Posture. Locomotion. Flight. Swimming. Physical exercise. Rest. Sports Women |
| title | Leg Strength is Associated with Ventilatory Efficiency in Older Women |
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