Reproducibility of Fatmax and fat oxidation rates during exercise in recreationally trained males
Aerobic exercise training performed at the intensity eliciting maximal fat oxidation (Fat(max)) has been shown to improve the metabolic profile of obese patients. However, limited information is available on the reproducibility of Fat(max) and related physiological measures. The aim of this study wa...
Gespeichert in:
| Veröffentlicht in: | PloS one 2014-06, Vol.9 (6), p.e97930-e97930 |
|---|---|
| Hauptverfasser: | , , , , , , , , , |
| Format: | Artikel |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| container_end_page | e97930 |
|---|---|
| container_issue | 6 |
| container_start_page | e97930 |
| container_title | PloS one |
| container_volume | 9 |
| creator | Croci, Ilaria Borrani, Fabio Byrne, Nuala M Byrne, Nuala Wood, Rachel E Wood, Rachel Hickman, Ingrid J Hickman, Ingrid Chenevière, Xavier Malatesta, Davide |
| description | Aerobic exercise training performed at the intensity eliciting maximal fat oxidation (Fat(max)) has been shown to improve the metabolic profile of obese patients. However, limited information is available on the reproducibility of Fat(max) and related physiological measures. The aim of this study was to assess the intra-individual variability of: a) Fat(max) measurements determined using three different data analysis approaches and b) fat and carbohydrate oxidation rates at rest and at each stage of an individualized graded test. Fifteen healthy males [body mass index 23.1 ± 0.6 kg/m(2), maximal oxygen consumption (VO2max) 52.0 ± 2.0 ml/kg/min] completed a maximal test and two identical submaximal incremental tests on ergocycle (30-min rest followed by 5-min stages with increments of 7.5% of the maximal power output). Fat and carbohydrate oxidation rates were determined using indirect calorimetry. Fat(max) was determined with three approaches: the sine model (SIN), measured values (MV) and 3rd polynomial curve (P3). Intra-individual coefficients of variation (CVs) and limits of agreement were calculated. CV for Fat(max) determined with SIN was 16.4% and tended to be lower than with P3 and MV (18.6% and 20.8%, respectively). Limits of agreement for Fat(max) were -2 ± 27% of VO2max with SIN, -4 ± 32 with P3 and -4 ± 28 with MV. CVs of oxygen uptake, carbon dioxide production and respiratory exchange rate were |
| doi_str_mv | 10.1371/journal.pone.0097930 |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_plos_</sourceid><recordid>TN_cdi_plos_journals_1531472618</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><doaj_id>oai_doaj_org_article_33b16d840cb44988826f3da4f346e12a</doaj_id><sourcerecordid>1532481710</sourcerecordid><originalsourceid>FETCH-LOGICAL-c4410-ff050112e4887e5a1ba8e6282f4077ca05553656d98c573d6e0f4c76d55be6233</originalsourceid><addsrcrecordid>eNptkl9rFDEUxQdRbK1-A9GAL77smkz-zosgxWqhIIg-hzvJnTVLZrImM7L77Z3uTksrPiXk_u7JucmpqteMrhnX7MM2TXmAuN6lAdeUNrrh9El1zhper1RN-dMH-7PqRSlbSiU3Sj2vzmphjNJMnlfwHXc5-cmFNsQwHkjqyBWMPewJDJ50MJK0Dx7GkAaSYcRC_JTDsCG4x-xCQRLmArqMRwZiPJAxQxjQkx4ilpfVsw5iwVfLelH9vPr84_Lr6ubbl-vLTzcrJwSjq66jkjJW42xNowTWgkFVm7oTVGsHVErJlVS-MU5q7hXSTjitvJTtzHF-Ub096e5iKnZ5nWKZ5EzoWjEzE9cnwifY2l0OPeSDTRDs8SDljYU8BhfRct4y5Y2grhWiMcbUquMeRMeFQlbDrPVxuW1qe_QOh3no-Ej0cWUIv-wm_bGCCqZrPQu8XwRy-j1hGW0fisMYYcA0HX3Pv8Q0ozP67h_0_9OJE-VyKiVjd2-GUXubmLsue5sYuyRmbnvzcJD7pruI8L84Er7_</addsrcrecordid><sourcetype>Open Website</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>1531472618</pqid></control><display><type>article</type><title>Reproducibility of Fatmax and fat oxidation rates during exercise in recreationally trained males</title><source>MEDLINE</source><source>DOAJ Directory of Open Access Journals</source><source>Public Library of Science (PLoS)</source><source>EZB-FREE-00999 freely available EZB journals</source><source>PubMed Central</source><source>Free Full-Text Journals in Chemistry</source><creator>Croci, Ilaria ; Borrani, Fabio ; Byrne, Nuala M ; Byrne, Nuala ; Wood, Rachel E ; Wood, Rachel ; Hickman, Ingrid J ; Hickman, Ingrid ; Chenevière, Xavier ; Malatesta, Davide</creator><contributor>Bacurau, Reury F. P.</contributor><creatorcontrib>Croci, Ilaria ; Borrani, Fabio ; Byrne, Nuala M ; Byrne, Nuala ; Wood, Rachel E ; Wood, Rachel ; Hickman, Ingrid J ; Hickman, Ingrid ; Chenevière, Xavier ; Malatesta, Davide ; Bacurau, Reury F. P.</creatorcontrib><description>Aerobic exercise training performed at the intensity eliciting maximal fat oxidation (Fat(max)) has been shown to improve the metabolic profile of obese patients. However, limited information is available on the reproducibility of Fat(max) and related physiological measures. The aim of this study was to assess the intra-individual variability of: a) Fat(max) measurements determined using three different data analysis approaches and b) fat and carbohydrate oxidation rates at rest and at each stage of an individualized graded test. Fifteen healthy males [body mass index 23.1 ± 0.6 kg/m(2), maximal oxygen consumption (VO2max) 52.0 ± 2.0 ml/kg/min] completed a maximal test and two identical submaximal incremental tests on ergocycle (30-min rest followed by 5-min stages with increments of 7.5% of the maximal power output). Fat and carbohydrate oxidation rates were determined using indirect calorimetry. Fat(max) was determined with three approaches: the sine model (SIN), measured values (MV) and 3rd polynomial curve (P3). Intra-individual coefficients of variation (CVs) and limits of agreement were calculated. CV for Fat(max) determined with SIN was 16.4% and tended to be lower than with P3 and MV (18.6% and 20.8%, respectively). Limits of agreement for Fat(max) were -2 ± 27% of VO2max with SIN, -4 ± 32 with P3 and -4 ± 28 with MV. CVs of oxygen uptake, carbon dioxide production and respiratory exchange rate were <10% at rest and <5% during exercise. Conversely, CVs of fat oxidation rates (20% at rest and 24-49% during exercise) and carbohydrate oxidation rates (33.5% at rest, 8.5-12.9% during exercise) were higher. The intra-individual variability of Fat(max) and fat oxidation rates was high (CV>15%), regardless of the data analysis approach employed. Further research on the determinants of the variability of Fat(max) and fat oxidation rates is required.</description><identifier>ISSN: 1932-6203</identifier><identifier>EISSN: 1932-6203</identifier><identifier>DOI: 10.1371/journal.pone.0097930</identifier><identifier>PMID: 24886715</identifier><language>eng</language><publisher>United States: Public Library of Science</publisher><subject>Adult ; Aerobics ; Biology and Life Sciences ; Body fat ; Body mass ; Body mass index ; Body size ; Calorimetry ; Carbohydrates ; Carbon dioxide ; Carbon Dioxide - metabolism ; Carbon dioxide exchange ; Coefficient of variation ; Data analysis ; Data processing ; Diabetes ; Exercise ; Exercise intensity ; Fitness training programs ; Humans ; Lipid Metabolism ; Male ; Males ; Medicine and Health Sciences ; Metabolism ; Models, Biological ; Oxidation ; Oxidation-Reduction ; Oxygen ; Oxygen Consumption ; Oxygen uptake ; Physical fitness ; Physical Sciences ; Physiology ; Recreation ; Reproducibility ; Reproducibility of Results ; Respiration ; Rest ; Social Sciences ; Studies ; Teenagers ; Variability ; Workloads</subject><ispartof>PloS one, 2014-06, Vol.9 (6), p.e97930-e97930</ispartof><rights>2014 Croci et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License: http://creativecommons.org/licenses/by/4.0/ (the “License”), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.</rights><rights>2014 Croci et al 2014 Croci et al</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c4410-ff050112e4887e5a1ba8e6282f4077ca05553656d98c573d6e0f4c76d55be6233</citedby><cites>FETCH-LOGICAL-c4410-ff050112e4887e5a1ba8e6282f4077ca05553656d98c573d6e0f4c76d55be6233</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC4041727/pdf/$$EPDF$$P50$$Gpubmedcentral$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC4041727/$$EHTML$$P50$$Gpubmedcentral$$Hfree_for_read</linktohtml><link.rule.ids>230,314,727,780,784,864,885,2102,2928,23866,27924,27925,53791,53793,79600,79601</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/24886715$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><contributor>Bacurau, Reury F. P.</contributor><creatorcontrib>Croci, Ilaria</creatorcontrib><creatorcontrib>Borrani, Fabio</creatorcontrib><creatorcontrib>Byrne, Nuala M</creatorcontrib><creatorcontrib>Byrne, Nuala</creatorcontrib><creatorcontrib>Wood, Rachel E</creatorcontrib><creatorcontrib>Wood, Rachel</creatorcontrib><creatorcontrib>Hickman, Ingrid J</creatorcontrib><creatorcontrib>Hickman, Ingrid</creatorcontrib><creatorcontrib>Chenevière, Xavier</creatorcontrib><creatorcontrib>Malatesta, Davide</creatorcontrib><title>Reproducibility of Fatmax and fat oxidation rates during exercise in recreationally trained males</title><title>PloS one</title><addtitle>PLoS One</addtitle><description>Aerobic exercise training performed at the intensity eliciting maximal fat oxidation (Fat(max)) has been shown to improve the metabolic profile of obese patients. However, limited information is available on the reproducibility of Fat(max) and related physiological measures. The aim of this study was to assess the intra-individual variability of: a) Fat(max) measurements determined using three different data analysis approaches and b) fat and carbohydrate oxidation rates at rest and at each stage of an individualized graded test. Fifteen healthy males [body mass index 23.1 ± 0.6 kg/m(2), maximal oxygen consumption (VO2max) 52.0 ± 2.0 ml/kg/min] completed a maximal test and two identical submaximal incremental tests on ergocycle (30-min rest followed by 5-min stages with increments of 7.5% of the maximal power output). Fat and carbohydrate oxidation rates were determined using indirect calorimetry. Fat(max) was determined with three approaches: the sine model (SIN), measured values (MV) and 3rd polynomial curve (P3). Intra-individual coefficients of variation (CVs) and limits of agreement were calculated. CV for Fat(max) determined with SIN was 16.4% and tended to be lower than with P3 and MV (18.6% and 20.8%, respectively). Limits of agreement for Fat(max) were -2 ± 27% of VO2max with SIN, -4 ± 32 with P3 and -4 ± 28 with MV. CVs of oxygen uptake, carbon dioxide production and respiratory exchange rate were <10% at rest and <5% during exercise. Conversely, CVs of fat oxidation rates (20% at rest and 24-49% during exercise) and carbohydrate oxidation rates (33.5% at rest, 8.5-12.9% during exercise) were higher. The intra-individual variability of Fat(max) and fat oxidation rates was high (CV>15%), regardless of the data analysis approach employed. Further research on the determinants of the variability of Fat(max) and fat oxidation rates is required.</description><subject>Adult</subject><subject>Aerobics</subject><subject>Biology and Life Sciences</subject><subject>Body fat</subject><subject>Body mass</subject><subject>Body mass index</subject><subject>Body size</subject><subject>Calorimetry</subject><subject>Carbohydrates</subject><subject>Carbon dioxide</subject><subject>Carbon Dioxide - metabolism</subject><subject>Carbon dioxide exchange</subject><subject>Coefficient of variation</subject><subject>Data analysis</subject><subject>Data processing</subject><subject>Diabetes</subject><subject>Exercise</subject><subject>Exercise intensity</subject><subject>Fitness training programs</subject><subject>Humans</subject><subject>Lipid Metabolism</subject><subject>Male</subject><subject>Males</subject><subject>Medicine and Health Sciences</subject><subject>Metabolism</subject><subject>Models, Biological</subject><subject>Oxidation</subject><subject>Oxidation-Reduction</subject><subject>Oxygen</subject><subject>Oxygen Consumption</subject><subject>Oxygen uptake</subject><subject>Physical fitness</subject><subject>Physical Sciences</subject><subject>Physiology</subject><subject>Recreation</subject><subject>Reproducibility</subject><subject>Reproducibility of Results</subject><subject>Respiration</subject><subject>Rest</subject><subject>Social Sciences</subject><subject>Studies</subject><subject>Teenagers</subject><subject>Variability</subject><subject>Workloads</subject><issn>1932-6203</issn><issn>1932-6203</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2014</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><sourceid>DOA</sourceid><recordid>eNptkl9rFDEUxQdRbK1-A9GAL77smkz-zosgxWqhIIg-hzvJnTVLZrImM7L77Z3uTksrPiXk_u7JucmpqteMrhnX7MM2TXmAuN6lAdeUNrrh9El1zhper1RN-dMH-7PqRSlbSiU3Sj2vzmphjNJMnlfwHXc5-cmFNsQwHkjqyBWMPewJDJ50MJK0Dx7GkAaSYcRC_JTDsCG4x-xCQRLmArqMRwZiPJAxQxjQkx4ilpfVsw5iwVfLelH9vPr84_Lr6ubbl-vLTzcrJwSjq66jkjJW42xNowTWgkFVm7oTVGsHVErJlVS-MU5q7hXSTjitvJTtzHF-Ub096e5iKnZ5nWKZ5EzoWjEzE9cnwifY2l0OPeSDTRDs8SDljYU8BhfRct4y5Y2grhWiMcbUquMeRMeFQlbDrPVxuW1qe_QOh3no-Ej0cWUIv-wm_bGCCqZrPQu8XwRy-j1hGW0fisMYYcA0HX3Pv8Q0ozP67h_0_9OJE-VyKiVjd2-GUXubmLsue5sYuyRmbnvzcJD7pruI8L84Er7_</recordid><startdate>20140602</startdate><enddate>20140602</enddate><creator>Croci, Ilaria</creator><creator>Borrani, Fabio</creator><creator>Byrne, Nuala M</creator><creator>Byrne, Nuala</creator><creator>Wood, Rachel E</creator><creator>Wood, Rachel</creator><creator>Hickman, Ingrid J</creator><creator>Hickman, Ingrid</creator><creator>Chenevière, Xavier</creator><creator>Malatesta, Davide</creator><general>Public Library of Science</general><general>Public Library of Science (PLoS)</general><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>3V.</scope><scope>7QG</scope><scope>7QL</scope><scope>7QO</scope><scope>7RV</scope><scope>7SN</scope><scope>7SS</scope><scope>7T5</scope><scope>7TG</scope><scope>7TM</scope><scope>7U9</scope><scope>7X2</scope><scope>7X7</scope><scope>7XB</scope><scope>88E</scope><scope>8AO</scope><scope>8C1</scope><scope>8FD</scope><scope>8FE</scope><scope>8FG</scope><scope>8FH</scope><scope>8FI</scope><scope>8FJ</scope><scope>8FK</scope><scope>ABJCF</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>ARAPS</scope><scope>ATCPS</scope><scope>AZQEC</scope><scope>BBNVY</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>BHPHI</scope><scope>C1K</scope><scope>CCPQU</scope><scope>D1I</scope><scope>DWQXO</scope><scope>FR3</scope><scope>FYUFA</scope><scope>GHDGH</scope><scope>GNUQQ</scope><scope>H94</scope><scope>HCIFZ</scope><scope>K9.</scope><scope>KB.</scope><scope>KB0</scope><scope>KL.</scope><scope>L6V</scope><scope>LK8</scope><scope>M0K</scope><scope>M0S</scope><scope>M1P</scope><scope>M7N</scope><scope>M7P</scope><scope>M7S</scope><scope>NAPCQ</scope><scope>P5Z</scope><scope>P62</scope><scope>P64</scope><scope>PATMY</scope><scope>PDBOC</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>PTHSS</scope><scope>PYCSY</scope><scope>RC3</scope><scope>7X8</scope><scope>5PM</scope><scope>DOA</scope></search><sort><creationdate>20140602</creationdate><title>Reproducibility of Fatmax and fat oxidation rates during exercise in recreationally trained males</title><author>Croci, Ilaria ; Borrani, Fabio ; Byrne, Nuala M ; Byrne, Nuala ; Wood, Rachel E ; Wood, Rachel ; Hickman, Ingrid J ; Hickman, Ingrid ; Chenevière, Xavier ; Malatesta, Davide</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c4410-ff050112e4887e5a1ba8e6282f4077ca05553656d98c573d6e0f4c76d55be6233</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2014</creationdate><topic>Adult</topic><topic>Aerobics</topic><topic>Biology and Life Sciences</topic><topic>Body fat</topic><topic>Body mass</topic><topic>Body mass index</topic><topic>Body size</topic><topic>Calorimetry</topic><topic>Carbohydrates</topic><topic>Carbon dioxide</topic><topic>Carbon Dioxide - metabolism</topic><topic>Carbon dioxide exchange</topic><topic>Coefficient of variation</topic><topic>Data analysis</topic><topic>Data processing</topic><topic>Diabetes</topic><topic>Exercise</topic><topic>Exercise intensity</topic><topic>Fitness training programs</topic><topic>Humans</topic><topic>Lipid Metabolism</topic><topic>Male</topic><topic>Males</topic><topic>Medicine and Health Sciences</topic><topic>Metabolism</topic><topic>Models, Biological</topic><topic>Oxidation</topic><topic>Oxidation-Reduction</topic><topic>Oxygen</topic><topic>Oxygen Consumption</topic><topic>Oxygen uptake</topic><topic>Physical fitness</topic><topic>Physical Sciences</topic><topic>Physiology</topic><topic>Recreation</topic><topic>Reproducibility</topic><topic>Reproducibility of Results</topic><topic>Respiration</topic><topic>Rest</topic><topic>Social Sciences</topic><topic>Studies</topic><topic>Teenagers</topic><topic>Variability</topic><topic>Workloads</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Croci, Ilaria</creatorcontrib><creatorcontrib>Borrani, Fabio</creatorcontrib><creatorcontrib>Byrne, Nuala M</creatorcontrib><creatorcontrib>Byrne, Nuala</creatorcontrib><creatorcontrib>Wood, Rachel E</creatorcontrib><creatorcontrib>Wood, Rachel</creatorcontrib><creatorcontrib>Hickman, Ingrid J</creatorcontrib><creatorcontrib>Hickman, Ingrid</creatorcontrib><creatorcontrib>Chenevière, Xavier</creatorcontrib><creatorcontrib>Malatesta, Davide</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>ProQuest Central (Corporate)</collection><collection>Animal Behavior Abstracts</collection><collection>Bacteriology Abstracts (Microbiology B)</collection><collection>Biotechnology Research Abstracts</collection><collection>Nursing & Allied Health Database</collection><collection>Ecology Abstracts</collection><collection>Entomology Abstracts (Full archive)</collection><collection>Immunology Abstracts</collection><collection>Meteorological & Geoastrophysical Abstracts</collection><collection>Nucleic Acids Abstracts</collection><collection>Virology and AIDS Abstracts</collection><collection>Agricultural Science Collection</collection><collection>Health & Medical Collection</collection><collection>ProQuest Central (purchase pre-March 2016)</collection><collection>Medical Database (Alumni Edition)</collection><collection>ProQuest Pharma Collection</collection><collection>Public Health Database</collection><collection>Technology Research Database</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>ProQuest Natural Science Collection</collection><collection>Hospital Premium Collection</collection><collection>Hospital Premium Collection (Alumni Edition)</collection><collection>ProQuest Central (Alumni) (purchase pre-March 2016)</collection><collection>Materials Science & Engineering Collection</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest Central UK/Ireland</collection><collection>Advanced Technologies & Aerospace Collection</collection><collection>Agricultural & Environmental Science Collection</collection><collection>ProQuest Central Essentials</collection><collection>Biological Science Collection</collection><collection>ProQuest Central</collection><collection>Technology Collection</collection><collection>Natural Science Collection</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ProQuest One Community College</collection><collection>ProQuest Materials Science Collection</collection><collection>ProQuest Central Korea</collection><collection>Engineering Research Database</collection><collection>Health Research Premium Collection</collection><collection>Health Research Premium Collection (Alumni)</collection><collection>ProQuest Central Student</collection><collection>AIDS and Cancer Research Abstracts</collection><collection>SciTech Premium Collection</collection><collection>ProQuest Health & Medical Complete (Alumni)</collection><collection>Materials Science Database</collection><collection>Nursing & Allied Health Database (Alumni Edition)</collection><collection>Meteorological & Geoastrophysical Abstracts - Academic</collection><collection>ProQuest Engineering Collection</collection><collection>ProQuest Biological Science Collection</collection><collection>Agricultural Science Database</collection><collection>Health & Medical Collection (Alumni Edition)</collection><collection>Medical Database</collection><collection>Algology Mycology and Protozoology Abstracts (Microbiology C)</collection><collection>Biological Science Database</collection><collection>Engineering Database</collection><collection>Nursing & Allied Health Premium</collection><collection>Advanced Technologies & Aerospace Database</collection><collection>ProQuest Advanced Technologies & Aerospace Collection</collection><collection>Biotechnology and BioEngineering Abstracts</collection><collection>Environmental Science Database</collection><collection>Materials Science Collection</collection><collection>Publicly Available Content Database</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><collection>Engineering Collection</collection><collection>Environmental Science Collection</collection><collection>Genetics Abstracts</collection><collection>MEDLINE - Academic</collection><collection>PubMed Central (Full Participant titles)</collection><collection>DOAJ Directory of Open Access Journals</collection><jtitle>PloS one</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Croci, Ilaria</au><au>Borrani, Fabio</au><au>Byrne, Nuala M</au><au>Byrne, Nuala</au><au>Wood, Rachel E</au><au>Wood, Rachel</au><au>Hickman, Ingrid J</au><au>Hickman, Ingrid</au><au>Chenevière, Xavier</au><au>Malatesta, Davide</au><au>Bacurau, Reury F. P.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Reproducibility of Fatmax and fat oxidation rates during exercise in recreationally trained males</atitle><jtitle>PloS one</jtitle><addtitle>PLoS One</addtitle><date>2014-06-02</date><risdate>2014</risdate><volume>9</volume><issue>6</issue><spage>e97930</spage><epage>e97930</epage><pages>e97930-e97930</pages><issn>1932-6203</issn><eissn>1932-6203</eissn><abstract>Aerobic exercise training performed at the intensity eliciting maximal fat oxidation (Fat(max)) has been shown to improve the metabolic profile of obese patients. However, limited information is available on the reproducibility of Fat(max) and related physiological measures. The aim of this study was to assess the intra-individual variability of: a) Fat(max) measurements determined using three different data analysis approaches and b) fat and carbohydrate oxidation rates at rest and at each stage of an individualized graded test. Fifteen healthy males [body mass index 23.1 ± 0.6 kg/m(2), maximal oxygen consumption (VO2max) 52.0 ± 2.0 ml/kg/min] completed a maximal test and two identical submaximal incremental tests on ergocycle (30-min rest followed by 5-min stages with increments of 7.5% of the maximal power output). Fat and carbohydrate oxidation rates were determined using indirect calorimetry. Fat(max) was determined with three approaches: the sine model (SIN), measured values (MV) and 3rd polynomial curve (P3). Intra-individual coefficients of variation (CVs) and limits of agreement were calculated. CV for Fat(max) determined with SIN was 16.4% and tended to be lower than with P3 and MV (18.6% and 20.8%, respectively). Limits of agreement for Fat(max) were -2 ± 27% of VO2max with SIN, -4 ± 32 with P3 and -4 ± 28 with MV. CVs of oxygen uptake, carbon dioxide production and respiratory exchange rate were <10% at rest and <5% during exercise. Conversely, CVs of fat oxidation rates (20% at rest and 24-49% during exercise) and carbohydrate oxidation rates (33.5% at rest, 8.5-12.9% during exercise) were higher. The intra-individual variability of Fat(max) and fat oxidation rates was high (CV>15%), regardless of the data analysis approach employed. Further research on the determinants of the variability of Fat(max) and fat oxidation rates is required.</abstract><cop>United States</cop><pub>Public Library of Science</pub><pmid>24886715</pmid><doi>10.1371/journal.pone.0097930</doi><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 1932-6203 |
| ispartof | PloS one, 2014-06, Vol.9 (6), p.e97930-e97930 |
| issn | 1932-6203 1932-6203 |
| language | eng |
| recordid | cdi_plos_journals_1531472618 |
| source | MEDLINE; DOAJ Directory of Open Access Journals; Public Library of Science (PLoS); EZB-FREE-00999 freely available EZB journals; PubMed Central; Free Full-Text Journals in Chemistry |
| subjects | Adult Aerobics Biology and Life Sciences Body fat Body mass Body mass index Body size Calorimetry Carbohydrates Carbon dioxide Carbon Dioxide - metabolism Carbon dioxide exchange Coefficient of variation Data analysis Data processing Diabetes Exercise Exercise intensity Fitness training programs Humans Lipid Metabolism Male Males Medicine and Health Sciences Metabolism Models, Biological Oxidation Oxidation-Reduction Oxygen Oxygen Consumption Oxygen uptake Physical fitness Physical Sciences Physiology Recreation Reproducibility Reproducibility of Results Respiration Rest Social Sciences Studies Teenagers Variability Workloads |
| title | Reproducibility of Fatmax and fat oxidation rates during exercise in recreationally trained males |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-06T16%3A41%3A28IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_plos_&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Reproducibility%20of%20Fatmax%20and%20fat%20oxidation%20rates%20during%20exercise%20in%20recreationally%20trained%20males&rft.jtitle=PloS%20one&rft.au=Croci,%20Ilaria&rft.date=2014-06-02&rft.volume=9&rft.issue=6&rft.spage=e97930&rft.epage=e97930&rft.pages=e97930-e97930&rft.issn=1932-6203&rft.eissn=1932-6203&rft_id=info:doi/10.1371/journal.pone.0097930&rft_dat=%3Cproquest_plos_%3E1532481710%3C/proquest_plos_%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=1531472618&rft_id=info:pmid/24886715&rft_doaj_id=oai_doaj_org_article_33b16d840cb44988826f3da4f346e12a&rfr_iscdi=true |