Eccentric cycling is more efficient in reducing fat mass than concentric cycling in adolescents with obesity
The benefits of eccentric (ECC) training on fat mass (FM) remain underexplored. We hypothesized that in obese adolescents, ECC cycling training is more efficient for decreasing whole‐body FM percentage compared to concentric (CON) performed at the same oxygen consumption (VO2). Twenty‐four adolescen...
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| Veröffentlicht in: | Scandinavian journal of medicine & science in sports 2019-01, Vol.29 (1), p.4-15 |
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| creator | Julian, Valérie Thivel, David Miguet, Maud Pereira, Bruno Costes, Frédéric Coudeyre, Emmanuel Duclos, Martine Richard, Ruddy |
| description | The benefits of eccentric (ECC) training on fat mass (FM) remain underexplored. We hypothesized that in obese adolescents, ECC cycling training is more efficient for decreasing whole‐body FM percentage compared to concentric (CON) performed at the same oxygen consumption (VO2). Twenty‐four adolescents aged 13.4 ± 1.3 years (BMI > 90th percentile) were randomized to ECC or CON. They performed three cyclo‐ergometer sessions per week (30 min per session) for 12 weeks: two habituation, 5 at 50% VO2peak, and 5 at 70% VO2peak. Anthropometric measurements, body composition, maximal incremental CON tests, strength tests, and blood samples were assessed pre‐ and post‐training. Whole‐body FM percentage decreased significantly after compared to pretraining in both groups, though to a larger extent in the ECC group (ECC: −10% vs CON: −4.2%, P |
| doi_str_mv | 10.1111/sms.13301 |
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We hypothesized that in obese adolescents, ECC cycling training is more efficient for decreasing whole‐body FM percentage compared to concentric (CON) performed at the same oxygen consumption (VO2). Twenty‐four adolescents aged 13.4 ± 1.3 years (BMI > 90th percentile) were randomized to ECC or CON. They performed three cyclo‐ergometer sessions per week (30 min per session) for 12 weeks: two habituation, 5 at 50% VO2peak, and 5 at 70% VO2peak. Anthropometric measurements, body composition, maximal incremental CON tests, strength tests, and blood samples were assessed pre‐ and post‐training. Whole‐body FM percentage decreased significantly after compared to pretraining in both groups, though to a larger extent in the ECC group (ECC: −10% vs CON: −4.2%, P < 0.05). Whole‐body lean mass (LM) percentage increased significantly in both groups after compared to pretraining, with a greater increase in the ECC group (ECC: 3.8% vs CON: 1.5%, P <0.05). The improvements in leg FM and LM percentages were greater in the ECC group (−6.5% and 3.0%, P = 0.01 and P < 0.01). Quadriceps isometric and isokinetic ECC strength increased significantly more in the ECC group (28.3% and 21.3%, P < 0.05). Both groups showed similar significant VO2peak improvement (ECC: 15.4% vs CON: 10.3%). The decrease in homeostasis model assessment of insulin resistance index was significant in the ECC group (−19.9%). In conclusion, although both ECC and CON cycling trainings are efficient to decrease FM, ECC induces greater FM reduction, strength gains, and insulin resistance improvements and represents an optimal modality to recommend for obese adolescents.</description><identifier>ISSN: 0905-7188</identifier><identifier>EISSN: 1600-0838</identifier><identifier>DOI: 10.1111/sms.13301</identifier><identifier>PMID: 30222208</identifier><language>eng</language><publisher>Denmark: Blackwell Publishing Ltd</publisher><subject>Adipose Tissue - physiology ; Adiposity ; Adolescent ; Anthropometry ; Bicycling ; body composition ; childhood obesity ; eccentric exercise ; exercise physiology ; Exercise Test ; Exercise Therapy ; Female ; Humans ; Insulin Resistance ; Life Sciences ; Male ; Muscle Strength ; Obesity ; Original ; Oxygen Consumption ; Pediatric Obesity - therapy ; Quadriceps Muscle - physiology ; Teenagers</subject><ispartof>Scandinavian journal of medicine & science in sports, 2019-01, Vol.29 (1), p.4-15</ispartof><rights>2018 The Authors. Published by John Wiley & Sons Ltd</rights><rights>2018 The Authors. Scandinavian Journal of Medicine & Science In Sports Published by John Wiley & Sons Ltd.</rights><rights>Copyright © 2019 John Wiley & Sons A/S. 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We hypothesized that in obese adolescents, ECC cycling training is more efficient for decreasing whole‐body FM percentage compared to concentric (CON) performed at the same oxygen consumption (VO2). Twenty‐four adolescents aged 13.4 ± 1.3 years (BMI > 90th percentile) were randomized to ECC or CON. They performed three cyclo‐ergometer sessions per week (30 min per session) for 12 weeks: two habituation, 5 at 50% VO2peak, and 5 at 70% VO2peak. Anthropometric measurements, body composition, maximal incremental CON tests, strength tests, and blood samples were assessed pre‐ and post‐training. Whole‐body FM percentage decreased significantly after compared to pretraining in both groups, though to a larger extent in the ECC group (ECC: −10% vs CON: −4.2%, P < 0.05). Whole‐body lean mass (LM) percentage increased significantly in both groups after compared to pretraining, with a greater increase in the ECC group (ECC: 3.8% vs CON: 1.5%, P <0.05). The improvements in leg FM and LM percentages were greater in the ECC group (−6.5% and 3.0%, P = 0.01 and P < 0.01). Quadriceps isometric and isokinetic ECC strength increased significantly more in the ECC group (28.3% and 21.3%, P < 0.05). Both groups showed similar significant VO2peak improvement (ECC: 15.4% vs CON: 10.3%). The decrease in homeostasis model assessment of insulin resistance index was significant in the ECC group (−19.9%). In conclusion, although both ECC and CON cycling trainings are efficient to decrease FM, ECC induces greater FM reduction, strength gains, and insulin resistance improvements and represents an optimal modality to recommend for obese adolescents.</description><subject>Adipose Tissue - physiology</subject><subject>Adiposity</subject><subject>Adolescent</subject><subject>Anthropometry</subject><subject>Bicycling</subject><subject>body composition</subject><subject>childhood obesity</subject><subject>eccentric exercise</subject><subject>exercise physiology</subject><subject>Exercise Test</subject><subject>Exercise Therapy</subject><subject>Female</subject><subject>Humans</subject><subject>Insulin Resistance</subject><subject>Life Sciences</subject><subject>Male</subject><subject>Muscle Strength</subject><subject>Obesity</subject><subject>Original</subject><subject>Oxygen Consumption</subject><subject>Pediatric Obesity - therapy</subject><subject>Quadriceps Muscle - physiology</subject><subject>Teenagers</subject><issn>0905-7188</issn><issn>1600-0838</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2019</creationdate><recordtype>article</recordtype><sourceid>24P</sourceid><sourceid>WIN</sourceid><sourceid>EIF</sourceid><recordid>eNp1kcFu1DAQhi0EokvhwAsgS1zgkHYc27H3glRVhSIt4lA4W44z7rpK4mInrfbtcbqlQBFzsez_m39mPIS8ZnDEShznIR8xzoE9ISvWAFSguX5KVrAGWSmm9QF5kfMVAFNrIZ-TAw51CdAr0p85h-OUgqNu5_owXtKQ6RATUvQ-uFBEGkaasJvdono70cHmTKetHamL4z_pI7Vd7DEvQqa3YdrS2GIO0-4leeZtn_HV_XlIvn88-3Z6Xm2-fvp8erKpnFCKVZ3wquEWVVeu66btPHLbOlsLYRvfIbOMu6b1wgFAC1hLp8ByXtdcaMSWH5IPe9_ruR2wu-vQ9uY6hcGmnYk2mL-VMWzNZbwximsAwYvB-73B9lHa-cnGLG_AZdOseXPDCvvuvliKP2bMkxlCmb3v7YhxzqZmoGspFSy2bx-hV3FOY_mKQkkupKy1_l3cpZhzQv_QAQOz7NuUfZu7fRf2zZ-TPpC_FlyA4z1wG3rc_d_JXHy52Fv-BHsZtgc</recordid><startdate>201901</startdate><enddate>201901</enddate><creator>Julian, Valérie</creator><creator>Thivel, David</creator><creator>Miguet, Maud</creator><creator>Pereira, Bruno</creator><creator>Costes, Frédéric</creator><creator>Coudeyre, Emmanuel</creator><creator>Duclos, Martine</creator><creator>Richard, Ruddy</creator><general>Blackwell Publishing Ltd</general><general>Wiley</general><general>John Wiley and Sons Inc</general><scope>24P</scope><scope>WIN</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>7TS</scope><scope>K9.</scope><scope>7X8</scope><scope>1XC</scope><scope>VOOES</scope><scope>5PM</scope><orcidid>https://orcid.org/0000-0002-0045-1763</orcidid><orcidid>https://orcid.org/0000-0002-5485-8112</orcidid><orcidid>https://orcid.org/0000-0003-3778-7161</orcidid><orcidid>https://orcid.org/0000-0002-7158-386X</orcidid><orcidid>https://orcid.org/0000-0003-4687-3555</orcidid><orcidid>https://orcid.org/0000-0001-5753-2890</orcidid></search><sort><creationdate>201901</creationdate><title>Eccentric cycling is more efficient in reducing fat mass than concentric cycling in adolescents with obesity</title><author>Julian, Valérie ; Thivel, David ; Miguet, Maud ; Pereira, Bruno ; Costes, Frédéric ; Coudeyre, Emmanuel ; Duclos, Martine ; Richard, Ruddy</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c4771-d4f763ae7d47796bdfe3abca244a6fde1a13c6bf4c000b0e25c70a3322348eeb3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2019</creationdate><topic>Adipose Tissue - physiology</topic><topic>Adiposity</topic><topic>Adolescent</topic><topic>Anthropometry</topic><topic>Bicycling</topic><topic>body composition</topic><topic>childhood obesity</topic><topic>eccentric exercise</topic><topic>exercise physiology</topic><topic>Exercise Test</topic><topic>Exercise Therapy</topic><topic>Female</topic><topic>Humans</topic><topic>Insulin Resistance</topic><topic>Life Sciences</topic><topic>Male</topic><topic>Muscle Strength</topic><topic>Obesity</topic><topic>Original</topic><topic>Oxygen Consumption</topic><topic>Pediatric Obesity - therapy</topic><topic>Quadriceps Muscle - physiology</topic><topic>Teenagers</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Julian, Valérie</creatorcontrib><creatorcontrib>Thivel, David</creatorcontrib><creatorcontrib>Miguet, Maud</creatorcontrib><creatorcontrib>Pereira, Bruno</creatorcontrib><creatorcontrib>Costes, Frédéric</creatorcontrib><creatorcontrib>Coudeyre, Emmanuel</creatorcontrib><creatorcontrib>Duclos, Martine</creatorcontrib><creatorcontrib>Richard, Ruddy</creatorcontrib><collection>Wiley Online Library (Open Access Collection)</collection><collection>Wiley Online Library (Open Access Collection)</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>Physical Education Index</collection><collection>ProQuest Health & Medical Complete (Alumni)</collection><collection>MEDLINE - Academic</collection><collection>Hyper Article en Ligne (HAL)</collection><collection>Hyper Article en Ligne (HAL) (Open Access)</collection><collection>PubMed Central (Full Participant titles)</collection><jtitle>Scandinavian journal of medicine & science in sports</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Julian, Valérie</au><au>Thivel, David</au><au>Miguet, Maud</au><au>Pereira, Bruno</au><au>Costes, Frédéric</au><au>Coudeyre, Emmanuel</au><au>Duclos, Martine</au><au>Richard, Ruddy</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Eccentric cycling is more efficient in reducing fat mass than concentric cycling in adolescents with obesity</atitle><jtitle>Scandinavian journal of medicine & science in sports</jtitle><addtitle>Scand J Med Sci Sports</addtitle><date>2019-01</date><risdate>2019</risdate><volume>29</volume><issue>1</issue><spage>4</spage><epage>15</epage><pages>4-15</pages><issn>0905-7188</issn><eissn>1600-0838</eissn><abstract>The benefits of eccentric (ECC) training on fat mass (FM) remain underexplored. We hypothesized that in obese adolescents, ECC cycling training is more efficient for decreasing whole‐body FM percentage compared to concentric (CON) performed at the same oxygen consumption (VO2). Twenty‐four adolescents aged 13.4 ± 1.3 years (BMI > 90th percentile) were randomized to ECC or CON. They performed three cyclo‐ergometer sessions per week (30 min per session) for 12 weeks: two habituation, 5 at 50% VO2peak, and 5 at 70% VO2peak. Anthropometric measurements, body composition, maximal incremental CON tests, strength tests, and blood samples were assessed pre‐ and post‐training. Whole‐body FM percentage decreased significantly after compared to pretraining in both groups, though to a larger extent in the ECC group (ECC: −10% vs CON: −4.2%, P < 0.05). Whole‐body lean mass (LM) percentage increased significantly in both groups after compared to pretraining, with a greater increase in the ECC group (ECC: 3.8% vs CON: 1.5%, P <0.05). The improvements in leg FM and LM percentages were greater in the ECC group (−6.5% and 3.0%, P = 0.01 and P < 0.01). Quadriceps isometric and isokinetic ECC strength increased significantly more in the ECC group (28.3% and 21.3%, P < 0.05). Both groups showed similar significant VO2peak improvement (ECC: 15.4% vs CON: 10.3%). The decrease in homeostasis model assessment of insulin resistance index was significant in the ECC group (−19.9%). In conclusion, although both ECC and CON cycling trainings are efficient to decrease FM, ECC induces greater FM reduction, strength gains, and insulin resistance improvements and represents an optimal modality to recommend for obese adolescents.</abstract><cop>Denmark</cop><pub>Blackwell Publishing Ltd</pub><pmid>30222208</pmid><doi>10.1111/sms.13301</doi><tpages>12</tpages><orcidid>https://orcid.org/0000-0002-0045-1763</orcidid><orcidid>https://orcid.org/0000-0002-5485-8112</orcidid><orcidid>https://orcid.org/0000-0003-3778-7161</orcidid><orcidid>https://orcid.org/0000-0002-7158-386X</orcidid><orcidid>https://orcid.org/0000-0003-4687-3555</orcidid><orcidid>https://orcid.org/0000-0001-5753-2890</orcidid><oa>free_for_read</oa></addata></record> |
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| source | MEDLINE; Access via Wiley Online Library |
| subjects | Adipose Tissue - physiology Adiposity Adolescent Anthropometry Bicycling body composition childhood obesity eccentric exercise exercise physiology Exercise Test Exercise Therapy Female Humans Insulin Resistance Life Sciences Male Muscle Strength Obesity Original Oxygen Consumption Pediatric Obesity - therapy Quadriceps Muscle - physiology Teenagers |
| title | Eccentric cycling is more efficient in reducing fat mass than concentric cycling in adolescents with obesity |
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