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l-Menthol mouth rinse or ice slurry ingestion during the latter stages of exercise in the heat provide a novel stimulus to enhance performance despite elevation in mean body temperature

Owen Jeffries, Matthew Goldsmith, Mark Waldron Orcid Logo

European Journal of Applied Physiology, Volume: 118, Issue: 11, Pages: 2435 - 2442

Swansea University Author: Mark Waldron Orcid Logo

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DOI (Published version): 10.1007/s00421-018-3970-4

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PURPOSE: This study investigated the effects of L-menthol mouth rinse and ice slurry ingestion on time to exhaustion, when administered at the latter stages (~ 85%) of baseline exercise duration in the heat (35 °C).METHOD: Ten male participants performed four time to exhaustion (TTE) trials on a cyc...

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Published in: European Journal of Applied Physiology
ISSN: 1439-6319 1439-6327
Published: Springer 2018
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URI: https://cronfa.swan.ac.uk/Record/cronfa51418
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fullrecord <?xml version="1.0"?><rfc1807><datestamp>2019-09-03T16:02:26.9797831</datestamp><bib-version>v2</bib-version><id>51418</id><entry>2019-08-15</entry><title>l-Menthol mouth rinse or ice slurry ingestion during the latter stages of exercise in the heat provide a novel stimulus to enhance performance despite elevation in mean body temperature</title><swanseaauthors><author><sid>70db7c6c54d46f5e70b39e5ae0a056fa</sid><ORCID>0000-0002-2720-4615</ORCID><firstname>Mark</firstname><surname>Waldron</surname><name>Mark Waldron</name><active>true</active><ethesisStudent>false</ethesisStudent></author></swanseaauthors><date>2019-08-15</date><deptcode>STSC</deptcode><abstract>PURPOSE: This study investigated the effects of L-menthol mouth rinse and ice slurry ingestion on time to exhaustion, when administered at the latter stages (~ 85%) of baseline exercise duration in the heat (35 &#xB0;C).METHOD: Ten male participants performed four time to exhaustion (TTE) trials on a cycle ergometer at 70% Wmax. In a randomized crossover design, (1) placebo-flavored non-calorific mouth rinse, (2) L-menthol mouth rinse (0.01%), or (3) ice ingestion (1.25 g kg-1), was administered at 85% of participants' baseline TTE. Time to exhaustion, core and skin temperature, heart rate, rating of perceived effort, thermal comfort and thermal sensation were recorded.RESULTS: From the point of administration at 85% of baseline TTE, exercise time was extended by 1% (placebo, 15 s), 6% (L-menthol, 82 s) and 7% (ice, 108 s), relative to baseline performance (P = 0.036), with no difference between L-menthol and ice (P &gt; 0.05). Core temperature, skin temperature, and heart rate increased with time but did not differ between conditions (P &gt; 0.05). Thermal sensation did not differ significantly but demonstrated a large effect size (P = 0.080; [Formula: see text] = 0.260).CONCLUSION: These results indicate that both thermally cooling and non-thermally cooling oral stimuli have an equal and immediate behavioral, rather than physiological, influence on exhaustive exercise in the heat.</abstract><type>Journal Article</type><journal>European Journal of Applied Physiology</journal><volume>118</volume><journalNumber>11</journalNumber><paginationStart>2435</paginationStart><paginationEnd>2442</paginationEnd><publisher>Springer</publisher><issnPrint>1439-6319</issnPrint><issnElectronic>1439-6327</issnElectronic><keywords>Menthol, Ice slurry, Heat, Thermoregulation, Perception</keywords><publishedDay>1</publishedDay><publishedMonth>11</publishedMonth><publishedYear>2018</publishedYear><publishedDate>2018-11-01</publishedDate><doi>10.1007/s00421-018-3970-4</doi><url>https://doi.org/10.1007/s00421-018-3970-4</url><notes/><college>COLLEGE NANME</college><department>Sport and Exercise Sciences</department><CollegeCode>COLLEGE CODE</CollegeCode><DepartmentCode>STSC</DepartmentCode><institution>Swansea University</institution><apcterm/><lastEdited>2019-09-03T16:02:26.9797831</lastEdited><Created>2019-08-15T14:43:01.8080104</Created><path><level id="1">Faculty of Science and Engineering</level><level id="2">School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Sport and Exercise Sciences</level></path><authors><author><firstname>Owen</firstname><surname>Jeffries</surname><order>1</order></author><author><firstname>Matthew</firstname><surname>Goldsmith</surname><order>2</order></author><author><firstname>Mark</firstname><surname>Waldron</surname><orcid>0000-0002-2720-4615</orcid><order>3</order></author></authors><documents><document><filename>0051418-03092019160137.pdf</filename><originalFilename>jeffries2019(2).pdf</originalFilename><uploaded>2019-09-03T16:01:37.3830000</uploaded><type>Output</type><contentLength>803527</contentLength><contentType>application/pdf</contentType><version>Version of Record</version><cronfaStatus>true</cronfaStatus><embargoDate>2019-09-03T00:00:00.0000000</embargoDate><copyrightCorrect>false</copyrightCorrect><language>eng</language></document></documents><OutputDurs/></rfc1807>
spelling 2019-09-03T16:02:26.9797831 v2 51418 2019-08-15 l-Menthol mouth rinse or ice slurry ingestion during the latter stages of exercise in the heat provide a novel stimulus to enhance performance despite elevation in mean body temperature 70db7c6c54d46f5e70b39e5ae0a056fa 0000-0002-2720-4615 Mark Waldron Mark Waldron true false 2019-08-15 STSC PURPOSE: This study investigated the effects of L-menthol mouth rinse and ice slurry ingestion on time to exhaustion, when administered at the latter stages (~ 85%) of baseline exercise duration in the heat (35 °C).METHOD: Ten male participants performed four time to exhaustion (TTE) trials on a cycle ergometer at 70% Wmax. In a randomized crossover design, (1) placebo-flavored non-calorific mouth rinse, (2) L-menthol mouth rinse (0.01%), or (3) ice ingestion (1.25 g kg-1), was administered at 85% of participants' baseline TTE. Time to exhaustion, core and skin temperature, heart rate, rating of perceived effort, thermal comfort and thermal sensation were recorded.RESULTS: From the point of administration at 85% of baseline TTE, exercise time was extended by 1% (placebo, 15 s), 6% (L-menthol, 82 s) and 7% (ice, 108 s), relative to baseline performance (P = 0.036), with no difference between L-menthol and ice (P > 0.05). Core temperature, skin temperature, and heart rate increased with time but did not differ between conditions (P > 0.05). Thermal sensation did not differ significantly but demonstrated a large effect size (P = 0.080; [Formula: see text] = 0.260).CONCLUSION: These results indicate that both thermally cooling and non-thermally cooling oral stimuli have an equal and immediate behavioral, rather than physiological, influence on exhaustive exercise in the heat. Journal Article European Journal of Applied Physiology 118 11 2435 2442 Springer 1439-6319 1439-6327 Menthol, Ice slurry, Heat, Thermoregulation, Perception 1 11 2018 2018-11-01 10.1007/s00421-018-3970-4 https://doi.org/10.1007/s00421-018-3970-4 COLLEGE NANME Sport and Exercise Sciences COLLEGE CODE STSC Swansea University 2019-09-03T16:02:26.9797831 2019-08-15T14:43:01.8080104 Faculty of Science and Engineering School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Sport and Exercise Sciences Owen Jeffries 1 Matthew Goldsmith 2 Mark Waldron 0000-0002-2720-4615 3 0051418-03092019160137.pdf jeffries2019(2).pdf 2019-09-03T16:01:37.3830000 Output 803527 application/pdf Version of Record true 2019-09-03T00:00:00.0000000 false eng
title l-Menthol mouth rinse or ice slurry ingestion during the latter stages of exercise in the heat provide a novel stimulus to enhance performance despite elevation in mean body temperature
spellingShingle l-Menthol mouth rinse or ice slurry ingestion during the latter stages of exercise in the heat provide a novel stimulus to enhance performance despite elevation in mean body temperature
Mark Waldron
title_short l-Menthol mouth rinse or ice slurry ingestion during the latter stages of exercise in the heat provide a novel stimulus to enhance performance despite elevation in mean body temperature
title_full l-Menthol mouth rinse or ice slurry ingestion during the latter stages of exercise in the heat provide a novel stimulus to enhance performance despite elevation in mean body temperature
title_fullStr l-Menthol mouth rinse or ice slurry ingestion during the latter stages of exercise in the heat provide a novel stimulus to enhance performance despite elevation in mean body temperature
title_full_unstemmed l-Menthol mouth rinse or ice slurry ingestion during the latter stages of exercise in the heat provide a novel stimulus to enhance performance despite elevation in mean body temperature
title_sort l-Menthol mouth rinse or ice slurry ingestion during the latter stages of exercise in the heat provide a novel stimulus to enhance performance despite elevation in mean body temperature
author_id_str_mv 70db7c6c54d46f5e70b39e5ae0a056fa
author_id_fullname_str_mv 70db7c6c54d46f5e70b39e5ae0a056fa_***_Mark Waldron
author Mark Waldron
author2 Owen Jeffries
Matthew Goldsmith
Mark Waldron
format Journal article
container_title European Journal of Applied Physiology
container_volume 118
container_issue 11
container_start_page 2435
publishDate 2018
institution Swansea University
issn 1439-6319
1439-6327
doi_str_mv 10.1007/s00421-018-3970-4
publisher Springer
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Sport and Exercise Sciences{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Sport and Exercise Sciences
url https://doi.org/10.1007/s00421-018-3970-4
document_store_str 1
active_str 0
description PURPOSE: This study investigated the effects of L-menthol mouth rinse and ice slurry ingestion on time to exhaustion, when administered at the latter stages (~ 85%) of baseline exercise duration in the heat (35 °C).METHOD: Ten male participants performed four time to exhaustion (TTE) trials on a cycle ergometer at 70% Wmax. In a randomized crossover design, (1) placebo-flavored non-calorific mouth rinse, (2) L-menthol mouth rinse (0.01%), or (3) ice ingestion (1.25 g kg-1), was administered at 85% of participants' baseline TTE. Time to exhaustion, core and skin temperature, heart rate, rating of perceived effort, thermal comfort and thermal sensation were recorded.RESULTS: From the point of administration at 85% of baseline TTE, exercise time was extended by 1% (placebo, 15 s), 6% (L-menthol, 82 s) and 7% (ice, 108 s), relative to baseline performance (P = 0.036), with no difference between L-menthol and ice (P > 0.05). Core temperature, skin temperature, and heart rate increased with time but did not differ between conditions (P > 0.05). Thermal sensation did not differ significantly but demonstrated a large effect size (P = 0.080; [Formula: see text] = 0.260).CONCLUSION: These results indicate that both thermally cooling and non-thermally cooling oral stimuli have an equal and immediate behavioral, rather than physiological, influence on exhaustive exercise in the heat.
published_date 2018-11-01T04:03:17Z
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score 11.035634

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