Effects of mild hypohydration on cooling during cold-water immersion following exertional hyperthermia
Purpose We investigated the effects of mild hypohydration compared to euhydration on the cooling efficacy of cold-water immersion (CWI). Methods Fourteen participants (eight male, six female; age 26 ± 5 years; ht 1.77 ± 0.08 m; wt 72.2 ± 8.8 kg; 20.6 ± 7.4 % body fat) completed one euhydrated (EU) t...
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| Veröffentlicht in: | European journal of applied physiology 2016-04, Vol.116 (4), p.687-695 |
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| creator | Butts, Cory L. Luhring, Katherine E. Smith, Cody R. Tucker, Matthew A. Moyen, Nicole E. Ganio, Matthew S. McDermott, Brendon P. |
| description | Purpose
We investigated the effects of mild hypohydration compared to euhydration on the cooling efficacy of cold-water immersion (CWI).
Methods
Fourteen participants (eight male, six female; age 26 ± 5 years; ht 1.77 ± 0.08 m; wt 72.2 ± 8.8 kg; 20.6 ± 7.4 % body fat) completed one euhydrated (EU) trial followed by one hypohydrated trial (HY; via 24 h fluid restriction) in an environmental chamber (33.6 ± 0.9 °C, 55.8 ± 1.7 % RH). Volitional exercise was performed in a manner that matched end-exercise rectal temperature (
T
re
) through repeating exercise mode and intensity. Participants were then immersed in ice water (2.0 ± 0.8 °C) until
T
re
reached 38.1 °C or for a maximum of 15 min.
T
re
, heart rate (HR), skin blood flux (SBF) and mean skin temperature (
T
sk
) were monitored continuously during cooling.
Results
Pre-cooling body mass was decreased in the HY trial (−2.66 ± 1.23 % body mass) and maintained in the EU trial (−0.66 ± 0.44 %) compared to baseline mass (
P
0.05), however, all variables significantly decreased with immersion independent of hydration status (
P
|
| doi_str_mv | 10.1007/s00421-016-3329-7 |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_miscellaneous_1777982224</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>4004262811</sourcerecordid><originalsourceid>FETCH-LOGICAL-c420t-4fb64022c10d72f5e5cd980443af3c23e3328c6c37744626049d351035f87d3d3</originalsourceid><addsrcrecordid>eNp1kUtLAzEUhYMotlZ_gBsZcONm9ObRycxSSn1AwY2uwzQPOyXT1GSG2n9vYmsRQQjcC_nuuck5CF1iuMUA_C4AMIJzwEVOKalyfoSGmNEqLyjhx4ceVwN0FsISAEqCy1M0IAUvMccwRGZqjJZdyJzJ2saqbLFdu8VW-bpr3CqLRzpnm9V7pnqfinRW5Zu60z5r2lb7kDDjrHWbdK0_tU-TtU1KsV9o3zb1OToxtQ36Yl9H6O1h-jp5ymcvj8-T-1kuGYEuZ2ZeMCBEYlCcmLEeS1WVwBitDZWE6vjNUhaScs5YQQpglaJjDHRsSq6ooiN0s9Nde_fR69CJtglSW1uvtOuDwJzzqiSEsIhe_0GXrvfx4d9UMqgocaTwjpLeheC1EWvftLXfCgwihSB2IYgYgkghCB5nrvbK_bzV6jDx43oEyA4I6-Sp9r9W_6v6Bbmakec</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>1776781681</pqid></control><display><type>article</type><title>Effects of mild hypohydration on cooling during cold-water immersion following exertional hyperthermia</title><source>MEDLINE</source><source>SpringerLink Journals - AutoHoldings</source><creator>Butts, Cory L. ; Luhring, Katherine E. ; Smith, Cody R. ; Tucker, Matthew A. ; Moyen, Nicole E. ; Ganio, Matthew S. ; McDermott, Brendon P.</creator><creatorcontrib>Butts, Cory L. ; Luhring, Katherine E. ; Smith, Cody R. ; Tucker, Matthew A. ; Moyen, Nicole E. ; Ganio, Matthew S. ; McDermott, Brendon P.</creatorcontrib><description>Purpose
We investigated the effects of mild hypohydration compared to euhydration on the cooling efficacy of cold-water immersion (CWI).
Methods
Fourteen participants (eight male, six female; age 26 ± 5 years; ht 1.77 ± 0.08 m; wt 72.2 ± 8.8 kg; 20.6 ± 7.4 % body fat) completed one euhydrated (EU) trial followed by one hypohydrated trial (HY; via 24 h fluid restriction) in an environmental chamber (33.6 ± 0.9 °C, 55.8 ± 1.7 % RH). Volitional exercise was performed in a manner that matched end-exercise rectal temperature (
T
re
) through repeating exercise mode and intensity. Participants were then immersed in ice water (2.0 ± 0.8 °C) until
T
re
reached 38.1 °C or for a maximum of 15 min.
T
re
, heart rate (HR), skin blood flux (SBF) and mean skin temperature (
T
sk
) were monitored continuously during cooling.
Results
Pre-cooling body mass was decreased in the HY trial (−2.66 ± 1.23 % body mass) and maintained in the EU trial (−0.66 ± 0.44 %) compared to baseline mass (
P
< 0.001). Cooling rates were faster when EU (0.14 ± 0.05 °C/min) compared to HY (0.11 ± 0.05 °C/min,
P
= 0.046). HR, SBF, and
T
sk
were not different between EU and HY trials (
P
> 0.05), however, all variables significantly decreased with immersion independent of hydration status (
P
< 0.001).
Conclusion
The primary finding was that hypohydration modestly attenuates the rate of cooling in exertionally hyperthermic individuals. Regardless of hydration status, the cooling efficacy of CWI was preserved and should continue to be utilized in the treatment of exertional hyperthermia.</description><identifier>ISSN: 1439-6319</identifier><identifier>EISSN: 1439-6327</identifier><identifier>DOI: 10.1007/s00421-016-3329-7</identifier><identifier>PMID: 26781710</identifier><language>eng</language><publisher>Berlin/Heidelberg: Springer Berlin Heidelberg</publisher><subject>Adult ; Biomedical and Life Sciences ; Biomedicine ; Blood ; Body fat ; Body Temperature - physiology ; Cold ; Cold Temperature ; Cooling ; Exercise ; Female ; Fever ; Heart rate ; Heat ; Human Physiology ; Humans ; Hydration ; Hyperthermia ; Hyperthermia, Induced ; Hypothermia, Induced ; Ice ; Immersion ; Male ; Occupational Medicine/Industrial Medicine ; Original Article ; Skin ; Sports Medicine ; Temperature ; Water-Electrolyte Balance - physiology</subject><ispartof>European journal of applied physiology, 2016-04, Vol.116 (4), p.687-695</ispartof><rights>Springer-Verlag Berlin Heidelberg 2016</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c420t-4fb64022c10d72f5e5cd980443af3c23e3328c6c37744626049d351035f87d3d3</citedby><cites>FETCH-LOGICAL-c420t-4fb64022c10d72f5e5cd980443af3c23e3328c6c37744626049d351035f87d3d3</cites><orcidid>0000-0002-8720-5206</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s00421-016-3329-7$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s00421-016-3329-7$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,776,780,27901,27902,41464,42533,51294</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/26781710$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Butts, Cory L.</creatorcontrib><creatorcontrib>Luhring, Katherine E.</creatorcontrib><creatorcontrib>Smith, Cody R.</creatorcontrib><creatorcontrib>Tucker, Matthew A.</creatorcontrib><creatorcontrib>Moyen, Nicole E.</creatorcontrib><creatorcontrib>Ganio, Matthew S.</creatorcontrib><creatorcontrib>McDermott, Brendon P.</creatorcontrib><title>Effects of mild hypohydration on cooling during cold-water immersion following exertional hyperthermia</title><title>European journal of applied physiology</title><addtitle>Eur J Appl Physiol</addtitle><addtitle>Eur J Appl Physiol</addtitle><description>Purpose
We investigated the effects of mild hypohydration compared to euhydration on the cooling efficacy of cold-water immersion (CWI).
Methods
Fourteen participants (eight male, six female; age 26 ± 5 years; ht 1.77 ± 0.08 m; wt 72.2 ± 8.8 kg; 20.6 ± 7.4 % body fat) completed one euhydrated (EU) trial followed by one hypohydrated trial (HY; via 24 h fluid restriction) in an environmental chamber (33.6 ± 0.9 °C, 55.8 ± 1.7 % RH). Volitional exercise was performed in a manner that matched end-exercise rectal temperature (
T
re
) through repeating exercise mode and intensity. Participants were then immersed in ice water (2.0 ± 0.8 °C) until
T
re
reached 38.1 °C or for a maximum of 15 min.
T
re
, heart rate (HR), skin blood flux (SBF) and mean skin temperature (
T
sk
) were monitored continuously during cooling.
Results
Pre-cooling body mass was decreased in the HY trial (−2.66 ± 1.23 % body mass) and maintained in the EU trial (−0.66 ± 0.44 %) compared to baseline mass (
P
< 0.001). Cooling rates were faster when EU (0.14 ± 0.05 °C/min) compared to HY (0.11 ± 0.05 °C/min,
P
= 0.046). HR, SBF, and
T
sk
were not different between EU and HY trials (
P
> 0.05), however, all variables significantly decreased with immersion independent of hydration status (
P
< 0.001).
Conclusion
The primary finding was that hypohydration modestly attenuates the rate of cooling in exertionally hyperthermic individuals. Regardless of hydration status, the cooling efficacy of CWI was preserved and should continue to be utilized in the treatment of exertional hyperthermia.</description><subject>Adult</subject><subject>Biomedical and Life Sciences</subject><subject>Biomedicine</subject><subject>Blood</subject><subject>Body fat</subject><subject>Body Temperature - physiology</subject><subject>Cold</subject><subject>Cold Temperature</subject><subject>Cooling</subject><subject>Exercise</subject><subject>Female</subject><subject>Fever</subject><subject>Heart rate</subject><subject>Heat</subject><subject>Human Physiology</subject><subject>Humans</subject><subject>Hydration</subject><subject>Hyperthermia</subject><subject>Hyperthermia, Induced</subject><subject>Hypothermia, Induced</subject><subject>Ice</subject><subject>Immersion</subject><subject>Male</subject><subject>Occupational Medicine/Industrial Medicine</subject><subject>Original Article</subject><subject>Skin</subject><subject>Sports Medicine</subject><subject>Temperature</subject><subject>Water-Electrolyte Balance - physiology</subject><issn>1439-6319</issn><issn>1439-6327</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2016</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><sourceid>BENPR</sourceid><recordid>eNp1kUtLAzEUhYMotlZ_gBsZcONm9ObRycxSSn1AwY2uwzQPOyXT1GSG2n9vYmsRQQjcC_nuuck5CF1iuMUA_C4AMIJzwEVOKalyfoSGmNEqLyjhx4ceVwN0FsISAEqCy1M0IAUvMccwRGZqjJZdyJzJ2saqbLFdu8VW-bpr3CqLRzpnm9V7pnqfinRW5Zu60z5r2lb7kDDjrHWbdK0_tU-TtU1KsV9o3zb1OToxtQ36Yl9H6O1h-jp5ymcvj8-T-1kuGYEuZ2ZeMCBEYlCcmLEeS1WVwBitDZWE6vjNUhaScs5YQQpglaJjDHRsSq6ooiN0s9Nde_fR69CJtglSW1uvtOuDwJzzqiSEsIhe_0GXrvfx4d9UMqgocaTwjpLeheC1EWvftLXfCgwihSB2IYgYgkghCB5nrvbK_bzV6jDx43oEyA4I6-Sp9r9W_6v6Bbmakec</recordid><startdate>20160401</startdate><enddate>20160401</enddate><creator>Butts, Cory L.</creator><creator>Luhring, Katherine E.</creator><creator>Smith, Cody R.</creator><creator>Tucker, Matthew A.</creator><creator>Moyen, Nicole E.</creator><creator>Ganio, Matthew S.</creator><creator>McDermott, Brendon P.</creator><general>Springer Berlin Heidelberg</general><general>Springer Nature B.V</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>7RV</scope><scope>7X7</scope><scope>7XB</scope><scope>88A</scope><scope>88E</scope><scope>8AO</scope><scope>8FE</scope><scope>8FH</scope><scope>8FI</scope><scope>8FJ</scope><scope>8FK</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BBNVY</scope><scope>BENPR</scope><scope>BHPHI</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>FYUFA</scope><scope>GHDGH</scope><scope>GNUQQ</scope><scope>HCIFZ</scope><scope>K9.</scope><scope>KB0</scope><scope>LK8</scope><scope>M0S</scope><scope>M1P</scope><scope>M7P</scope><scope>NAPCQ</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>7X8</scope><orcidid>https://orcid.org/0000-0002-8720-5206</orcidid></search><sort><creationdate>20160401</creationdate><title>Effects of mild hypohydration on cooling during cold-water immersion following exertional hyperthermia</title><author>Butts, Cory L. ; Luhring, Katherine E. ; Smith, Cody R. ; Tucker, Matthew A. ; Moyen, Nicole E. ; Ganio, Matthew S. ; McDermott, Brendon P.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c420t-4fb64022c10d72f5e5cd980443af3c23e3328c6c37744626049d351035f87d3d3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2016</creationdate><topic>Adult</topic><topic>Biomedical and Life Sciences</topic><topic>Biomedicine</topic><topic>Blood</topic><topic>Body fat</topic><topic>Body Temperature - physiology</topic><topic>Cold</topic><topic>Cold Temperature</topic><topic>Cooling</topic><topic>Exercise</topic><topic>Female</topic><topic>Fever</topic><topic>Heart rate</topic><topic>Heat</topic><topic>Human Physiology</topic><topic>Humans</topic><topic>Hydration</topic><topic>Hyperthermia</topic><topic>Hyperthermia, Induced</topic><topic>Hypothermia, Induced</topic><topic>Ice</topic><topic>Immersion</topic><topic>Male</topic><topic>Occupational Medicine/Industrial Medicine</topic><topic>Original Article</topic><topic>Skin</topic><topic>Sports Medicine</topic><topic>Temperature</topic><topic>Water-Electrolyte Balance - physiology</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Butts, Cory L.</creatorcontrib><creatorcontrib>Luhring, Katherine E.</creatorcontrib><creatorcontrib>Smith, Cody R.</creatorcontrib><creatorcontrib>Tucker, Matthew A.</creatorcontrib><creatorcontrib>Moyen, Nicole E.</creatorcontrib><creatorcontrib>Ganio, Matthew S.</creatorcontrib><creatorcontrib>McDermott, Brendon P.</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>Nursing & Allied Health Database</collection><collection>Health & Medical Collection</collection><collection>ProQuest Central (purchase pre-March 2016)</collection><collection>Biology Database (Alumni Edition)</collection><collection>Medical Database (Alumni Edition)</collection><collection>ProQuest Pharma Collection</collection><collection>ProQuest SciTech 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>ProQuest Central (Alumni Edition)</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central Essentials</collection><collection>Biological Science Collection</collection><collection>ProQuest Central</collection><collection>Natural Science Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central Korea</collection><collection>Health Research Premium Collection</collection><collection>Health Research Premium Collection (Alumni)</collection><collection>ProQuest Central Student</collection><collection>SciTech Premium Collection</collection><collection>ProQuest Health & Medical Complete (Alumni)</collection><collection>Nursing & Allied Health Database (Alumni Edition)</collection><collection>ProQuest Biological Science Collection</collection><collection>Health & Medical Collection (Alumni Edition)</collection><collection>Medical Database</collection><collection>Biological Science Database</collection><collection>Nursing & Allied Health Premium</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>MEDLINE - Academic</collection><jtitle>European journal of applied physiology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Butts, Cory L.</au><au>Luhring, Katherine E.</au><au>Smith, Cody R.</au><au>Tucker, Matthew A.</au><au>Moyen, Nicole E.</au><au>Ganio, Matthew S.</au><au>McDermott, Brendon P.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Effects of mild hypohydration on cooling during cold-water immersion following exertional hyperthermia</atitle><jtitle>European journal of applied physiology</jtitle><stitle>Eur J Appl Physiol</stitle><addtitle>Eur J Appl Physiol</addtitle><date>2016-04-01</date><risdate>2016</risdate><volume>116</volume><issue>4</issue><spage>687</spage><epage>695</epage><pages>687-695</pages><issn>1439-6319</issn><eissn>1439-6327</eissn><abstract>Purpose
We investigated the effects of mild hypohydration compared to euhydration on the cooling efficacy of cold-water immersion (CWI).
Methods
Fourteen participants (eight male, six female; age 26 ± 5 years; ht 1.77 ± 0.08 m; wt 72.2 ± 8.8 kg; 20.6 ± 7.4 % body fat) completed one euhydrated (EU) trial followed by one hypohydrated trial (HY; via 24 h fluid restriction) in an environmental chamber (33.6 ± 0.9 °C, 55.8 ± 1.7 % RH). Volitional exercise was performed in a manner that matched end-exercise rectal temperature (
T
re
) through repeating exercise mode and intensity. Participants were then immersed in ice water (2.0 ± 0.8 °C) until
T
re
reached 38.1 °C or for a maximum of 15 min.
T
re
, heart rate (HR), skin blood flux (SBF) and mean skin temperature (
T
sk
) were monitored continuously during cooling.
Results
Pre-cooling body mass was decreased in the HY trial (−2.66 ± 1.23 % body mass) and maintained in the EU trial (−0.66 ± 0.44 %) compared to baseline mass (
P
< 0.001). Cooling rates were faster when EU (0.14 ± 0.05 °C/min) compared to HY (0.11 ± 0.05 °C/min,
P
= 0.046). HR, SBF, and
T
sk
were not different between EU and HY trials (
P
> 0.05), however, all variables significantly decreased with immersion independent of hydration status (
P
< 0.001).
Conclusion
The primary finding was that hypohydration modestly attenuates the rate of cooling in exertionally hyperthermic individuals. Regardless of hydration status, the cooling efficacy of CWI was preserved and should continue to be utilized in the treatment of exertional hyperthermia.</abstract><cop>Berlin/Heidelberg</cop><pub>Springer Berlin Heidelberg</pub><pmid>26781710</pmid><doi>10.1007/s00421-016-3329-7</doi><tpages>9</tpages><orcidid>https://orcid.org/0000-0002-8720-5206</orcidid></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 1439-6319 |
| ispartof | European journal of applied physiology, 2016-04, Vol.116 (4), p.687-695 |
| issn | 1439-6319 1439-6327 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_1777982224 |
| source | MEDLINE; SpringerLink Journals - AutoHoldings |
| subjects | Adult Biomedical and Life Sciences Biomedicine Blood Body fat Body Temperature - physiology Cold Cold Temperature Cooling Exercise Female Fever Heart rate Heat Human Physiology Humans Hydration Hyperthermia Hyperthermia, Induced Hypothermia, Induced Ice Immersion Male Occupational Medicine/Industrial Medicine Original Article Skin Sports Medicine Temperature Water-Electrolyte Balance - physiology |
| title | Effects of mild hypohydration on cooling during cold-water immersion following exertional hyperthermia |
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