Rapid body mass loss affects erythropoiesis and hemolysis but does not impair aerobic performance in combat athletes
Rapid body mass loss (RBML) before competition was found to decrease hemoglobin mass (Hbmass) in elite boxers. This study aimed to investigate the underlying mechanisms of this observation. Fourteen well‐trained combat athletes who reduced body mass before competitions (weight loss group, WLG) and 1...
Gespeichert in:
| Veröffentlicht in: | Scandinavian journal of medicine & science in sports 2016-05, Vol.26 (5), p.507-517 |
|---|---|
| Hauptverfasser: | , , , , |
| Format: | Artikel |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| container_end_page | 517 |
|---|---|
| container_issue | 5 |
| container_start_page | 507 |
| container_title | Scandinavian journal of medicine & science in sports |
| container_volume | 26 |
| creator | Reljic, D. Feist, J. Jost, J. Kieser, M. Friedmann-Bette, B. |
| description | Rapid body mass loss (RBML) before competition was found to decrease hemoglobin mass (Hbmass) in elite boxers. This study aimed to investigate the underlying mechanisms of this observation. Fourteen well‐trained combat athletes who reduced body mass before competitions (weight loss group, WLG) and 14 combat athletes who did not practice RBML (control group, CON) were tested during an ordinary training period (t‐1), 1–2 days before an official competition (after 5–7 days RBML in WLG, t‐2), and after a post‐competition period (t‐3). In WLG, body mass (−5.5%, range: 2.9–6.8 kg) and Hbmass (−4.1%) were significantly (P |
| doi_str_mv | 10.1111/sms.12485 |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_miscellaneous_1787958594</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>4036992441</sourcerecordid><originalsourceid>FETCH-LOGICAL-c4245-a4d6fa9c7307db1b5d09c96b2331cc24dc36c435c608a824514bedf5e1edf86a3</originalsourceid><addsrcrecordid>eNqNkU9rFTEUxYMo9lld-AUk4EYX0yaTP5NZ2uKrYlWwiuAmZJI7vNSZyZhk0Pn25vnaLgTBu7iXhN85cO9B6CklJ7TUaRrTCa25EvfQhkpCKqKYuo82pCWiaqhSR-hRSteE0Kbl4iE6qkVLJaftBuVPZvYOd8GteDQp4SGUZvoebE4Y4pp3MczBQ_Lle3J4B2MY1v2rWzJ2ARKeQsZ-nI2P2EAMnbd4htiHOJrJAvYTtmHsTMYm7wbIkB6jB70ZEjy5mcfoy_b15_M31eXHi7fnry4ry2suKsOd7E1rG0Ya19FOONLaVnY1Y9TamjvLpOVMWEmUUUVBeQeuF0BLV9KwY_Ti4DvH8GOBlPXok4VhMBOEJWnaqKYVSrT8f1DRMFaOVtDnf6HXYYlTWWRPcamolHWhXh4oG8tFI_R6jn40cdWU6H1quqSm_6RW2Gc3jks3grsjb2MqwOkB-OkHWP_tpK_eX91aVgeFTxl-3SlM_K5lwxqhv3640O-2ansmiNTf2G_4mLFC</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>1784681662</pqid></control><display><type>article</type><title>Rapid body mass loss affects erythropoiesis and hemolysis but does not impair aerobic performance in combat athletes</title><source>MEDLINE</source><source>Wiley Online Library Journals Frontfile Complete</source><creator>Reljic, D. ; Feist, J. ; Jost, J. ; Kieser, M. ; Friedmann-Bette, B.</creator><creatorcontrib>Reljic, D. ; Feist, J. ; Jost, J. ; Kieser, M. ; Friedmann-Bette, B.</creatorcontrib><description>Rapid body mass loss (RBML) before competition was found to decrease hemoglobin mass (Hbmass) in elite boxers. This study aimed to investigate the underlying mechanisms of this observation. Fourteen well‐trained combat athletes who reduced body mass before competitions (weight loss group, WLG) and 14 combat athletes who did not practice RBML (control group, CON) were tested during an ordinary training period (t‐1), 1–2 days before an official competition (after 5–7 days RBML in WLG, t‐2), and after a post‐competition period (t‐3). In WLG, body mass (−5.5%, range: 2.9–6.8 kg) and Hbmass (−4.1%) were significantly (P < 0.001) reduced after RBML and were still decreased by 1.6% (P < 0.05) and 2.6% (P < 0.001) at t‐3 compared with t‐1. After RBML, erythropoietin, reticulocytes, haptoglobin, triiodothyronine (FT3), and free androgen index (FAI) were decreased compared with t‐1 and t‐3. An increase occurred in ferritin and bilirubin. Peak treadmill‐running performance and VO2peak did not change significantly, but performance at 4‐mmol lactate threshold was higher after RBML (P < 0.05). In CON, no significant changes were found in any parameter. Apparently, the significant decrease in Hbmass after RBML in combat athletes was caused by impaired erythropoiesis and increased hemolysis without significant impact on aerobic performance capacity.</description><identifier>ISSN: 0905-7188</identifier><identifier>EISSN: 1600-0838</identifier><identifier>DOI: 10.1111/sms.12485</identifier><identifier>PMID: 25916419</identifier><language>eng</language><publisher>Denmark: Blackwell Publishing Ltd</publisher><subject>Adolescent ; Adult ; Anaerobic Threshold - physiology ; Androgens - blood ; Athletes ; Body mass index ; Boxing - physiology ; Combat sports ; dehydration ; Erythropoiesis ; erythropoietin ; Erythropoietin - blood ; Exercise - physiology ; Haptoglobins - metabolism ; hemoglobin mass ; Hemoglobins - metabolism ; Hemolysis ; Humans ; Male ; Martial Arts - physiology ; Plasma Volume ; red blood cell destruction ; Reticulocyte Count ; Sports - physiology ; Sports medicine ; Triiodothyronine - blood ; Weight control ; weight cutting ; Weight Loss - physiology ; Wrestling - physiology ; Young Adult</subject><ispartof>Scandinavian journal of medicine & science in sports, 2016-05, Vol.26 (5), p.507-517</ispartof><rights>2015 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd</rights><rights>2015 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.</rights><rights>Copyright © 2016 John Wiley & Sons A/S</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c4245-a4d6fa9c7307db1b5d09c96b2331cc24dc36c435c608a824514bedf5e1edf86a3</citedby><cites>FETCH-LOGICAL-c4245-a4d6fa9c7307db1b5d09c96b2331cc24dc36c435c608a824514bedf5e1edf86a3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1111%2Fsms.12485$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1111%2Fsms.12485$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,776,780,1411,27901,27902,45550,45551</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/25916419$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Reljic, D.</creatorcontrib><creatorcontrib>Feist, J.</creatorcontrib><creatorcontrib>Jost, J.</creatorcontrib><creatorcontrib>Kieser, M.</creatorcontrib><creatorcontrib>Friedmann-Bette, B.</creatorcontrib><title>Rapid body mass loss affects erythropoiesis and hemolysis but does not impair aerobic performance in combat athletes</title><title>Scandinavian journal of medicine & science in sports</title><addtitle>Scand J Med Sci Sports</addtitle><description>Rapid body mass loss (RBML) before competition was found to decrease hemoglobin mass (Hbmass) in elite boxers. This study aimed to investigate the underlying mechanisms of this observation. Fourteen well‐trained combat athletes who reduced body mass before competitions (weight loss group, WLG) and 14 combat athletes who did not practice RBML (control group, CON) were tested during an ordinary training period (t‐1), 1–2 days before an official competition (after 5–7 days RBML in WLG, t‐2), and after a post‐competition period (t‐3). In WLG, body mass (−5.5%, range: 2.9–6.8 kg) and Hbmass (−4.1%) were significantly (P < 0.001) reduced after RBML and were still decreased by 1.6% (P < 0.05) and 2.6% (P < 0.001) at t‐3 compared with t‐1. After RBML, erythropoietin, reticulocytes, haptoglobin, triiodothyronine (FT3), and free androgen index (FAI) were decreased compared with t‐1 and t‐3. An increase occurred in ferritin and bilirubin. Peak treadmill‐running performance and VO2peak did not change significantly, but performance at 4‐mmol lactate threshold was higher after RBML (P < 0.05). In CON, no significant changes were found in any parameter. Apparently, the significant decrease in Hbmass after RBML in combat athletes was caused by impaired erythropoiesis and increased hemolysis without significant impact on aerobic performance capacity.</description><subject>Adolescent</subject><subject>Adult</subject><subject>Anaerobic Threshold - physiology</subject><subject>Androgens - blood</subject><subject>Athletes</subject><subject>Body mass index</subject><subject>Boxing - physiology</subject><subject>Combat sports</subject><subject>dehydration</subject><subject>Erythropoiesis</subject><subject>erythropoietin</subject><subject>Erythropoietin - blood</subject><subject>Exercise - physiology</subject><subject>Haptoglobins - metabolism</subject><subject>hemoglobin mass</subject><subject>Hemoglobins - metabolism</subject><subject>Hemolysis</subject><subject>Humans</subject><subject>Male</subject><subject>Martial Arts - physiology</subject><subject>Plasma Volume</subject><subject>red blood cell destruction</subject><subject>Reticulocyte Count</subject><subject>Sports - physiology</subject><subject>Sports medicine</subject><subject>Triiodothyronine - blood</subject><subject>Weight control</subject><subject>weight cutting</subject><subject>Weight Loss - physiology</subject><subject>Wrestling - physiology</subject><subject>Young Adult</subject><issn>0905-7188</issn><issn>1600-0838</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2016</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqNkU9rFTEUxYMo9lld-AUk4EYX0yaTP5NZ2uKrYlWwiuAmZJI7vNSZyZhk0Pn25vnaLgTBu7iXhN85cO9B6CklJ7TUaRrTCa25EvfQhkpCKqKYuo82pCWiaqhSR-hRSteE0Kbl4iE6qkVLJaftBuVPZvYOd8GteDQp4SGUZvoebE4Y4pp3MczBQ_Lle3J4B2MY1v2rWzJ2ARKeQsZ-nI2P2EAMnbd4htiHOJrJAvYTtmHsTMYm7wbIkB6jB70ZEjy5mcfoy_b15_M31eXHi7fnry4ry2suKsOd7E1rG0Ya19FOONLaVnY1Y9TamjvLpOVMWEmUUUVBeQeuF0BLV9KwY_Ti4DvH8GOBlPXok4VhMBOEJWnaqKYVSrT8f1DRMFaOVtDnf6HXYYlTWWRPcamolHWhXh4oG8tFI_R6jn40cdWU6H1quqSm_6RW2Gc3jks3grsjb2MqwOkB-OkHWP_tpK_eX91aVgeFTxl-3SlM_K5lwxqhv3640O-2ansmiNTf2G_4mLFC</recordid><startdate>201605</startdate><enddate>201605</enddate><creator>Reljic, D.</creator><creator>Feist, J.</creator><creator>Jost, J.</creator><creator>Kieser, M.</creator><creator>Friedmann-Bette, B.</creator><general>Blackwell Publishing Ltd</general><scope>BSCLL</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></search><sort><creationdate>201605</creationdate><title>Rapid body mass loss affects erythropoiesis and hemolysis but does not impair aerobic performance in combat athletes</title><author>Reljic, D. ; Feist, J. ; Jost, J. ; Kieser, M. ; Friedmann-Bette, B.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c4245-a4d6fa9c7307db1b5d09c96b2331cc24dc36c435c608a824514bedf5e1edf86a3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2016</creationdate><topic>Adolescent</topic><topic>Adult</topic><topic>Anaerobic Threshold - physiology</topic><topic>Androgens - blood</topic><topic>Athletes</topic><topic>Body mass index</topic><topic>Boxing - physiology</topic><topic>Combat sports</topic><topic>dehydration</topic><topic>Erythropoiesis</topic><topic>erythropoietin</topic><topic>Erythropoietin - blood</topic><topic>Exercise - physiology</topic><topic>Haptoglobins - metabolism</topic><topic>hemoglobin mass</topic><topic>Hemoglobins - metabolism</topic><topic>Hemolysis</topic><topic>Humans</topic><topic>Male</topic><topic>Martial Arts - physiology</topic><topic>Plasma Volume</topic><topic>red blood cell destruction</topic><topic>Reticulocyte Count</topic><topic>Sports - physiology</topic><topic>Sports medicine</topic><topic>Triiodothyronine - blood</topic><topic>Weight control</topic><topic>weight cutting</topic><topic>Weight Loss - physiology</topic><topic>Wrestling - physiology</topic><topic>Young Adult</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Reljic, D.</creatorcontrib><creatorcontrib>Feist, J.</creatorcontrib><creatorcontrib>Jost, J.</creatorcontrib><creatorcontrib>Kieser, M.</creatorcontrib><creatorcontrib>Friedmann-Bette, B.</creatorcontrib><collection>Istex</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><jtitle>Scandinavian journal of medicine & science in sports</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Reljic, D.</au><au>Feist, J.</au><au>Jost, J.</au><au>Kieser, M.</au><au>Friedmann-Bette, B.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Rapid body mass loss affects erythropoiesis and hemolysis but does not impair aerobic performance in combat athletes</atitle><jtitle>Scandinavian journal of medicine & science in sports</jtitle><addtitle>Scand J Med Sci Sports</addtitle><date>2016-05</date><risdate>2016</risdate><volume>26</volume><issue>5</issue><spage>507</spage><epage>517</epage><pages>507-517</pages><issn>0905-7188</issn><eissn>1600-0838</eissn><abstract>Rapid body mass loss (RBML) before competition was found to decrease hemoglobin mass (Hbmass) in elite boxers. This study aimed to investigate the underlying mechanisms of this observation. Fourteen well‐trained combat athletes who reduced body mass before competitions (weight loss group, WLG) and 14 combat athletes who did not practice RBML (control group, CON) were tested during an ordinary training period (t‐1), 1–2 days before an official competition (after 5–7 days RBML in WLG, t‐2), and after a post‐competition period (t‐3). In WLG, body mass (−5.5%, range: 2.9–6.8 kg) and Hbmass (−4.1%) were significantly (P < 0.001) reduced after RBML and were still decreased by 1.6% (P < 0.05) and 2.6% (P < 0.001) at t‐3 compared with t‐1. After RBML, erythropoietin, reticulocytes, haptoglobin, triiodothyronine (FT3), and free androgen index (FAI) were decreased compared with t‐1 and t‐3. An increase occurred in ferritin and bilirubin. Peak treadmill‐running performance and VO2peak did not change significantly, but performance at 4‐mmol lactate threshold was higher after RBML (P < 0.05). In CON, no significant changes were found in any parameter. Apparently, the significant decrease in Hbmass after RBML in combat athletes was caused by impaired erythropoiesis and increased hemolysis without significant impact on aerobic performance capacity.</abstract><cop>Denmark</cop><pub>Blackwell Publishing Ltd</pub><pmid>25916419</pmid><doi>10.1111/sms.12485</doi><tpages>11</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0905-7188 |
| ispartof | Scandinavian journal of medicine & science in sports, 2016-05, Vol.26 (5), p.507-517 |
| issn | 0905-7188 1600-0838 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_1787958594 |
| source | MEDLINE; Wiley Online Library Journals Frontfile Complete |
| subjects | Adolescent Adult Anaerobic Threshold - physiology Androgens - blood Athletes Body mass index Boxing - physiology Combat sports dehydration Erythropoiesis erythropoietin Erythropoietin - blood Exercise - physiology Haptoglobins - metabolism hemoglobin mass Hemoglobins - metabolism Hemolysis Humans Male Martial Arts - physiology Plasma Volume red blood cell destruction Reticulocyte Count Sports - physiology Sports medicine Triiodothyronine - blood Weight control weight cutting Weight Loss - physiology Wrestling - physiology Young Adult |
| title | Rapid body mass loss affects erythropoiesis and hemolysis but does not impair aerobic performance in combat athletes |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-02-03T01%3A52%3A39IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_cross&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Rapid%20body%20mass%20loss%20affects%20erythropoiesis%20and%20hemolysis%20but%20does%20not%20impair%20aerobic%20performance%20in%20combat%20athletes&rft.jtitle=Scandinavian%20journal%20of%20medicine%20&%20science%20in%20sports&rft.au=Reljic,%20D.&rft.date=2016-05&rft.volume=26&rft.issue=5&rft.spage=507&rft.epage=517&rft.pages=507-517&rft.issn=0905-7188&rft.eissn=1600-0838&rft_id=info:doi/10.1111/sms.12485&rft_dat=%3Cproquest_cross%3E4036992441%3C/proquest_cross%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=1784681662&rft_id=info:pmid/25916419&rfr_iscdi=true |