Skeletal muscle water and electrolytes following prolonged dehydrating exercise
We studied if dehydrating exercise would reduce muscle water (H2Omuscle) and affect muscle electrolyte concentrations. Vastus lateralis muscle biopsies were collected prior, immediately after, and 1 and 4 h after prolonged dehydrating exercise (150 min at 33 ± 1 °C, 25% ± 2% humidity) on nine endura...
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| Veröffentlicht in: | Scandinavian journal of medicine & science in sports 2015-06, Vol.25 (3), p.e274-e282 |
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| container_title | Scandinavian journal of medicine & science in sports |
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| creator | Mora-Rodríguez, R. Fernández-Elías, V. E. Hamouti, N. Ortega, J. F. |
| description | We studied if dehydrating exercise would reduce muscle water (H2Omuscle) and affect muscle electrolyte concentrations. Vastus lateralis muscle biopsies were collected prior, immediately after, and 1 and 4 h after prolonged dehydrating exercise (150 min at 33 ± 1 °C, 25% ± 2% humidity) on nine endurance‐trained cyclists (VO2max = 54.4 ± 1.05 mL/kg/min). Plasma volume (PV) changes and fluid shifts between compartments (Cl− method) were measured. Exercise dehydrated subjects 4.7% ± 0.3% of body mass by losing 2.75 ± 0.15 L of water and reducing PV 18.4% ± 1% below pre‐exercise values (P |
| doi_str_mv | 10.1111/sms.12316 |
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E. ; Hamouti, N. ; Ortega, J. F.</creator><creatorcontrib>Mora-Rodríguez, R. ; Fernández-Elías, V. E. ; Hamouti, N. ; Ortega, J. F.</creatorcontrib><description>We studied if dehydrating exercise would reduce muscle water (H2Omuscle) and affect muscle electrolyte concentrations. Vastus lateralis muscle biopsies were collected prior, immediately after, and 1 and 4 h after prolonged dehydrating exercise (150 min at 33 ± 1 °C, 25% ± 2% humidity) on nine endurance‐trained cyclists (VO2max = 54.4 ± 1.05 mL/kg/min). Plasma volume (PV) changes and fluid shifts between compartments (Cl− method) were measured. Exercise dehydrated subjects 4.7% ± 0.3% of body mass by losing 2.75 ± 0.15 L of water and reducing PV 18.4% ± 1% below pre‐exercise values (P < 0.05). Right after exercise H2Omuscle remained at pre‐exercise values (i.e., 398 ± 6 mL/100 g dw muscle−1) but declined 13% ± 2% (342 ± 12 mL/100 g dw muscle−1; P < 0.05) after 1 h of supine rest. At that time, PV recovered toward pre‐exercise levels. The Cl− method corroborated the shift of fluid between extracellular and intracellular compartments. After 4 h of recovery, PV returned to pre‐exercise values; however, H2Omuscle remained reduced at the same level. Muscle Na+ and K+ increased (P < 0.05) in response to the H2Omuscle reductions. Our findings suggest that active skeletal muscle does not show a net loss of H2O during prolonged dehydrating exercise. However, during the first hour of recovery H2Omuscle decreases seemly to restore PV and thus cardiovascular stability.</description><identifier>ISSN: 0905-7188</identifier><identifier>EISSN: 1600-0838</identifier><identifier>DOI: 10.1111/sms.12316</identifier><identifier>PMID: 25199922</identifier><language>eng</language><publisher>Denmark: Blackwell Publishing Ltd</publisher><subject>Adolescent ; Adult ; Bicycling ; body water ; Body Water - metabolism ; Dehydration - metabolism ; Dehydration - physiopathology ; Electrolytes - metabolism ; Exercise ; extracellular fluid ; Extracellular Fluid - metabolism ; Fluid Shifts ; Humans ; intracellular fluid ; Intracellular Fluid - metabolism ; Male ; Muscle, Skeletal - metabolism ; Plasma Volume ; Quadriceps Muscle - metabolism ; Sweat - metabolism ; water loss ; Water-Electrolyte Imbalance - metabolism ; Water-Electrolyte Imbalance - physiopathology ; Young Adult</subject><ispartof>Scandinavian journal of medicine & science in sports, 2015-06, Vol.25 (3), p.e274-e282</ispartof><rights>2014 John Wiley & Sons A/S. 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Published by John Wiley & Sons Ltd.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c4686-455f05bd2ec7745f25760cf84ff1e7ac5787895edfd0e31ad8ba06a7d0d2080c3</citedby><cites>FETCH-LOGICAL-c4686-455f05bd2ec7745f25760cf84ff1e7ac5787895edfd0e31ad8ba06a7d0d2080c3</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.12316$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1111%2Fsms.12316$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,778,782,1414,27907,27908,45557,45558</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/25199922$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Mora-Rodríguez, R.</creatorcontrib><creatorcontrib>Fernández-Elías, V. E.</creatorcontrib><creatorcontrib>Hamouti, N.</creatorcontrib><creatorcontrib>Ortega, J. F.</creatorcontrib><title>Skeletal muscle water and electrolytes following prolonged dehydrating exercise</title><title>Scandinavian journal of medicine & science in sports</title><addtitle>Scand J Med Sci Sports</addtitle><description>We studied if dehydrating exercise would reduce muscle water (H2Omuscle) and affect muscle electrolyte concentrations. Vastus lateralis muscle biopsies were collected prior, immediately after, and 1 and 4 h after prolonged dehydrating exercise (150 min at 33 ± 1 °C, 25% ± 2% humidity) on nine endurance‐trained cyclists (VO2max = 54.4 ± 1.05 mL/kg/min). Plasma volume (PV) changes and fluid shifts between compartments (Cl− method) were measured. Exercise dehydrated subjects 4.7% ± 0.3% of body mass by losing 2.75 ± 0.15 L of water and reducing PV 18.4% ± 1% below pre‐exercise values (P < 0.05). Right after exercise H2Omuscle remained at pre‐exercise values (i.e., 398 ± 6 mL/100 g dw muscle−1) but declined 13% ± 2% (342 ± 12 mL/100 g dw muscle−1; P < 0.05) after 1 h of supine rest. At that time, PV recovered toward pre‐exercise levels. The Cl− method corroborated the shift of fluid between extracellular and intracellular compartments. After 4 h of recovery, PV returned to pre‐exercise values; however, H2Omuscle remained reduced at the same level. Muscle Na+ and K+ increased (P < 0.05) in response to the H2Omuscle reductions. Our findings suggest that active skeletal muscle does not show a net loss of H2O during prolonged dehydrating exercise. However, during the first hour of recovery H2Omuscle decreases seemly to restore PV and thus cardiovascular stability.</description><subject>Adolescent</subject><subject>Adult</subject><subject>Bicycling</subject><subject>body water</subject><subject>Body Water - metabolism</subject><subject>Dehydration - metabolism</subject><subject>Dehydration - physiopathology</subject><subject>Electrolytes - metabolism</subject><subject>Exercise</subject><subject>extracellular fluid</subject><subject>Extracellular Fluid - metabolism</subject><subject>Fluid Shifts</subject><subject>Humans</subject><subject>intracellular fluid</subject><subject>Intracellular Fluid - metabolism</subject><subject>Male</subject><subject>Muscle, Skeletal - metabolism</subject><subject>Plasma Volume</subject><subject>Quadriceps Muscle - metabolism</subject><subject>Sweat - metabolism</subject><subject>water loss</subject><subject>Water-Electrolyte Imbalance - metabolism</subject><subject>Water-Electrolyte Imbalance - physiopathology</subject><subject>Young Adult</subject><issn>0905-7188</issn><issn>1600-0838</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2015</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNp1kMtOwzAQRS0EglJY8AMoS1iktZ34kSWqoCAKlSiPpeXaYwg4TbFTlf49KYXumM1IV2euRgehE4J7pJ1-rGKP0IzwHdQhHOMUy0zuog4uMEsFkfIAHcb4jjERRc720QFlpCgKSjtoPPkAD432SbWIxkOy1A2ERM9s0uamCbVfNRATV3tfL8vZazJvo3r2Cjax8LayQTfrFL4gmDLCEdpz2kc4_t1d9HR1-Ti4Tkfj4c3gYpSanEue5ow5zKaWghEiZ44ywbFxMneOgNCGCSlkwcA6iyEj2sqpxlwLiy3FEpusi842ve07nwuIjarKaMB7PYN6ERXhkhSE55S26PkGNaGOMYBT81BWOqwUwWrtT7X-1I-_lj39rV1MK7Bb8k9YC_Q3wLL0sPq_SU3uJn-V6eaijA18bS90-FBcZIKpl_uhErfFA71-eVYk-wY1Copb</recordid><startdate>201506</startdate><enddate>201506</enddate><creator>Mora-Rodríguez, R.</creator><creator>Fernández-Elías, V. E.</creator><creator>Hamouti, N.</creator><creator>Ortega, J. F.</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>7X8</scope></search><sort><creationdate>201506</creationdate><title>Skeletal muscle water and electrolytes following prolonged dehydrating exercise</title><author>Mora-Rodríguez, R. ; Fernández-Elías, V. E. ; Hamouti, N. ; Ortega, J. F.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c4686-455f05bd2ec7745f25760cf84ff1e7ac5787895edfd0e31ad8ba06a7d0d2080c3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2015</creationdate><topic>Adolescent</topic><topic>Adult</topic><topic>Bicycling</topic><topic>body water</topic><topic>Body Water - metabolism</topic><topic>Dehydration - metabolism</topic><topic>Dehydration - physiopathology</topic><topic>Electrolytes - metabolism</topic><topic>Exercise</topic><topic>extracellular fluid</topic><topic>Extracellular Fluid - metabolism</topic><topic>Fluid Shifts</topic><topic>Humans</topic><topic>intracellular fluid</topic><topic>Intracellular Fluid - metabolism</topic><topic>Male</topic><topic>Muscle, Skeletal - metabolism</topic><topic>Plasma Volume</topic><topic>Quadriceps Muscle - metabolism</topic><topic>Sweat - metabolism</topic><topic>water loss</topic><topic>Water-Electrolyte Imbalance - metabolism</topic><topic>Water-Electrolyte Imbalance - physiopathology</topic><topic>Young Adult</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Mora-Rodríguez, R.</creatorcontrib><creatorcontrib>Fernández-Elías, V. E.</creatorcontrib><creatorcontrib>Hamouti, N.</creatorcontrib><creatorcontrib>Ortega, J. F.</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>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>Mora-Rodríguez, R.</au><au>Fernández-Elías, V. E.</au><au>Hamouti, N.</au><au>Ortega, J. F.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Skeletal muscle water and electrolytes following prolonged dehydrating exercise</atitle><jtitle>Scandinavian journal of medicine & science in sports</jtitle><addtitle>Scand J Med Sci Sports</addtitle><date>2015-06</date><risdate>2015</risdate><volume>25</volume><issue>3</issue><spage>e274</spage><epage>e282</epage><pages>e274-e282</pages><issn>0905-7188</issn><eissn>1600-0838</eissn><abstract>We studied if dehydrating exercise would reduce muscle water (H2Omuscle) and affect muscle electrolyte concentrations. Vastus lateralis muscle biopsies were collected prior, immediately after, and 1 and 4 h after prolonged dehydrating exercise (150 min at 33 ± 1 °C, 25% ± 2% humidity) on nine endurance‐trained cyclists (VO2max = 54.4 ± 1.05 mL/kg/min). Plasma volume (PV) changes and fluid shifts between compartments (Cl− method) were measured. Exercise dehydrated subjects 4.7% ± 0.3% of body mass by losing 2.75 ± 0.15 L of water and reducing PV 18.4% ± 1% below pre‐exercise values (P < 0.05). Right after exercise H2Omuscle remained at pre‐exercise values (i.e., 398 ± 6 mL/100 g dw muscle−1) but declined 13% ± 2% (342 ± 12 mL/100 g dw muscle−1; P < 0.05) after 1 h of supine rest. At that time, PV recovered toward pre‐exercise levels. The Cl− method corroborated the shift of fluid between extracellular and intracellular compartments. After 4 h of recovery, PV returned to pre‐exercise values; however, H2Omuscle remained reduced at the same level. Muscle Na+ and K+ increased (P < 0.05) in response to the H2Omuscle reductions. Our findings suggest that active skeletal muscle does not show a net loss of H2O during prolonged dehydrating exercise. However, during the first hour of recovery H2Omuscle decreases seemly to restore PV and thus cardiovascular stability.</abstract><cop>Denmark</cop><pub>Blackwell Publishing Ltd</pub><pmid>25199922</pmid><doi>10.1111/sms.12316</doi><tpages>9</tpages><oa>free_for_read</oa></addata></record> |
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| subjects | Adolescent Adult Bicycling body water Body Water - metabolism Dehydration - metabolism Dehydration - physiopathology Electrolytes - metabolism Exercise extracellular fluid Extracellular Fluid - metabolism Fluid Shifts Humans intracellular fluid Intracellular Fluid - metabolism Male Muscle, Skeletal - metabolism Plasma Volume Quadriceps Muscle - metabolism Sweat - metabolism water loss Water-Electrolyte Imbalance - metabolism Water-Electrolyte Imbalance - physiopathology Young Adult |
| title | Skeletal muscle water and electrolytes following prolonged dehydrating exercise |
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