Prescribed Drinking Leads to Better Cycling Performance than Ad Libitum Drinking
Drinking ad libitum during exercise often leads to dehydration ranging from -1 to -3% of body weight. PURPOSETo study the effect of a prescribed hydration protocol matching fluid losses on a simulated 30-km criterium-like cycling performance in the heat (31.6±0.5 °C). METHODTen elite, heat-acclimati...
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| Veröffentlicht in: | Medicine and science in sports and exercise 2017-06, Vol.49 (6), p.1244-1251 |
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| container_title | Medicine and science in sports and exercise |
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| creator | Bardis, Costas N Kavouras, Stavros A Adams, J.D Geladas, Nickos D Panagiotakos, Demosthenis B Sidossis, Labros S |
| description | Drinking ad libitum during exercise often leads to dehydration ranging from -1 to -3% of body weight.
PURPOSETo study the effect of a prescribed hydration protocol matching fluid losses on a simulated 30-km criterium-like cycling performance in the heat (31.6±0.5 °C).
METHODTen elite, heat-acclimatized, male endurance cyclists (30±5 y, 76.5±7.2 kg, 1.81±0.07 m, VO2peak61.3±5.2 ml[BULLET OPERATOR]min[BULLET OPERATOR]kg, body fat10.5±3.3%, Powermax392±33 W) performed three sets of criterium-like cycling, consisted of a 5-km at 50% power max, followed by a 5-km all out at 3% grade (total 30 km). Participants rode the course on two separate occasions and in a counter balanced order, either during ad libitum drinking (ADdrink water as much as they wished) and prescribed drinking (PDdrink water every 1 km to much fluid losses). To design the fluid intake during PD participants performed a familiarization trial to calculate fluid losses.
RESULTSFollowing the exercise protocol the cyclist dehydrated by -0.5±0.3 and -1.8±0.7% of their body weight for the PD and AD trial, respectively. Mean cycling speed for the 3rd bout of the 5 km hill cycling was greater in PD (30.2±2.4 km[BULLET OPERATOR]h) than in the AD trial (28.8±2.6 km[BULLET OPERATOR]h), by 5.1±4.8% (P |
| doi_str_mv | 10.1249/MSS.0000000000001202 |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_miscellaneous_1858105906</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>1858105906</sourcerecordid><originalsourceid>FETCH-LOGICAL-c4072-2c97f2092cd06709b4a25f2c5c42a33156a27fd01548ecdbdf9e620fe96d77dd3</originalsourceid><addsrcrecordid>eNp9kE1Lw0AQhhdRbK3-A5EcvaTObrLZ7LHWT4hYqJ7DZndiY_NRdxNK_70prUU8OJeB4XlnhoeQSwpjykJ58zKfj-FXUQbsiAwpD8CHgPJjMgQquS9pQAfkzLnPHhJBQE_JgMUgpAA-JLOZRadtkaHx7mxRL4v6w0tQGee1jXeLbYvWm250uZ3P0OaNrVSt0WsXqvYmxkuKrGi76hA-Jye5Kh1e7PuIvD_cv02f_OT18Xk6SXwdgmA-01LkDCTTBiIBMgsV4znTXIdM9U_ySDGRG6A8jFGbzOQSIwY5ysgIYUwwIte7vSvbfHXo2rQqnMayVDU2nUtpzGMKXELUo-EO1bZxzmKermxRKbtJKaRbl2nvMv3rso9d7S90WYXmEPqR1wPxDlg3Za_JLctujTZdoCrbxf-7vwHqBH9f</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>1858105906</pqid></control><display><type>article</type><title>Prescribed Drinking Leads to Better Cycling Performance than Ad Libitum Drinking</title><source>MEDLINE</source><source>Journals@Ovid LWW Legacy Archive</source><source>Journals@Ovid Complete</source><creator>Bardis, Costas N ; Kavouras, Stavros A ; Adams, J.D ; Geladas, Nickos D ; Panagiotakos, Demosthenis B ; Sidossis, Labros S</creator><creatorcontrib>Bardis, Costas N ; Kavouras, Stavros A ; Adams, J.D ; Geladas, Nickos D ; Panagiotakos, Demosthenis B ; Sidossis, Labros S</creatorcontrib><description>Drinking ad libitum during exercise often leads to dehydration ranging from -1 to -3% of body weight.
PURPOSETo study the effect of a prescribed hydration protocol matching fluid losses on a simulated 30-km criterium-like cycling performance in the heat (31.6±0.5 °C).
METHODTen elite, heat-acclimatized, male endurance cyclists (30±5 y, 76.5±7.2 kg, 1.81±0.07 m, VO2peak61.3±5.2 ml[BULLET OPERATOR]min[BULLET OPERATOR]kg, body fat10.5±3.3%, Powermax392±33 W) performed three sets of criterium-like cycling, consisted of a 5-km at 50% power max, followed by a 5-km all out at 3% grade (total 30 km). Participants rode the course on two separate occasions and in a counter balanced order, either during ad libitum drinking (ADdrink water as much as they wished) and prescribed drinking (PDdrink water every 1 km to much fluid losses). To design the fluid intake during PD participants performed a familiarization trial to calculate fluid losses.
RESULTSFollowing the exercise protocol the cyclist dehydrated by -0.5±0.3 and -1.8±0.7% of their body weight for the PD and AD trial, respectively. Mean cycling speed for the 3rd bout of the 5 km hill cycling was greater in PD (30.2±2.4 km[BULLET OPERATOR]h) than in the AD trial (28.8±2.6 km[BULLET OPERATOR]h), by 5.1±4.8% (P<0.05). Gastrointestinal, mean skin and mean body temperatures immediately after the last hill climbing were greater in the AD than in the PD trial; (P<0.05). Overall, sweat sensitivity during the three climbing bouts was lower in the AD (15.6±5.7 g[BULLET OPERATOR]W[BULLET OPERATOR]m) than in the PD trial (22.8±3.4 g[BULLET OPERATOR]W[BULLET OPERATOR]m, P<0.05).
CONCLUSIONThe data suggested that prescribed drinking to match fluid losses during exercise in the heat provided a performance advantage due to lower thermoregulatory strain and greater sweating responses.</description><identifier>ISSN: 0195-9131</identifier><identifier>EISSN: 1530-0315</identifier><identifier>DOI: 10.1249/MSS.0000000000001202</identifier><identifier>PMID: 28079705</identifier><language>eng</language><publisher>United States: American College of Sports Medicine</publisher><subject>Adult ; Athletic Performance - physiology ; Bicycling - physiology ; Blood Pressure - physiology ; Body Weight - physiology ; Dehydration - prevention & control ; Drinking ; Heart Rate - physiology ; Hot Temperature ; Humans ; Lactic Acid - blood ; Male ; Perception ; Physical Endurance - physiology ; Physical Exertion - physiology ; Sweating ; Thirst - physiology</subject><ispartof>Medicine and science in sports and exercise, 2017-06, Vol.49 (6), p.1244-1251</ispartof><rights>2017 American College of Sports Medicine</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c4072-2c97f2092cd06709b4a25f2c5c42a33156a27fd01548ecdbdf9e620fe96d77dd3</citedby><cites>FETCH-LOGICAL-c4072-2c97f2092cd06709b4a25f2c5c42a33156a27fd01548ecdbdf9e620fe96d77dd3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,777,781,27905,27906</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/28079705$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Bardis, Costas N</creatorcontrib><creatorcontrib>Kavouras, Stavros A</creatorcontrib><creatorcontrib>Adams, J.D</creatorcontrib><creatorcontrib>Geladas, Nickos D</creatorcontrib><creatorcontrib>Panagiotakos, Demosthenis B</creatorcontrib><creatorcontrib>Sidossis, Labros S</creatorcontrib><title>Prescribed Drinking Leads to Better Cycling Performance than Ad Libitum Drinking</title><title>Medicine and science in sports and exercise</title><addtitle>Med Sci Sports Exerc</addtitle><description>Drinking ad libitum during exercise often leads to dehydration ranging from -1 to -3% of body weight.
PURPOSETo study the effect of a prescribed hydration protocol matching fluid losses on a simulated 30-km criterium-like cycling performance in the heat (31.6±0.5 °C).
METHODTen elite, heat-acclimatized, male endurance cyclists (30±5 y, 76.5±7.2 kg, 1.81±0.07 m, VO2peak61.3±5.2 ml[BULLET OPERATOR]min[BULLET OPERATOR]kg, body fat10.5±3.3%, Powermax392±33 W) performed three sets of criterium-like cycling, consisted of a 5-km at 50% power max, followed by a 5-km all out at 3% grade (total 30 km). Participants rode the course on two separate occasions and in a counter balanced order, either during ad libitum drinking (ADdrink water as much as they wished) and prescribed drinking (PDdrink water every 1 km to much fluid losses). To design the fluid intake during PD participants performed a familiarization trial to calculate fluid losses.
RESULTSFollowing the exercise protocol the cyclist dehydrated by -0.5±0.3 and -1.8±0.7% of their body weight for the PD and AD trial, respectively. Mean cycling speed for the 3rd bout of the 5 km hill cycling was greater in PD (30.2±2.4 km[BULLET OPERATOR]h) than in the AD trial (28.8±2.6 km[BULLET OPERATOR]h), by 5.1±4.8% (P<0.05). Gastrointestinal, mean skin and mean body temperatures immediately after the last hill climbing were greater in the AD than in the PD trial; (P<0.05). Overall, sweat sensitivity during the three climbing bouts was lower in the AD (15.6±5.7 g[BULLET OPERATOR]W[BULLET OPERATOR]m) than in the PD trial (22.8±3.4 g[BULLET OPERATOR]W[BULLET OPERATOR]m, P<0.05).
CONCLUSIONThe data suggested that prescribed drinking to match fluid losses during exercise in the heat provided a performance advantage due to lower thermoregulatory strain and greater sweating responses.</description><subject>Adult</subject><subject>Athletic Performance - physiology</subject><subject>Bicycling - physiology</subject><subject>Blood Pressure - physiology</subject><subject>Body Weight - physiology</subject><subject>Dehydration - prevention & control</subject><subject>Drinking</subject><subject>Heart Rate - physiology</subject><subject>Hot Temperature</subject><subject>Humans</subject><subject>Lactic Acid - blood</subject><subject>Male</subject><subject>Perception</subject><subject>Physical Endurance - physiology</subject><subject>Physical Exertion - physiology</subject><subject>Sweating</subject><subject>Thirst - physiology</subject><issn>0195-9131</issn><issn>1530-0315</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2017</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNp9kE1Lw0AQhhdRbK3-A5EcvaTObrLZ7LHWT4hYqJ7DZndiY_NRdxNK_70prUU8OJeB4XlnhoeQSwpjykJ58zKfj-FXUQbsiAwpD8CHgPJjMgQquS9pQAfkzLnPHhJBQE_JgMUgpAA-JLOZRadtkaHx7mxRL4v6w0tQGee1jXeLbYvWm250uZ3P0OaNrVSt0WsXqvYmxkuKrGi76hA-Jye5Kh1e7PuIvD_cv02f_OT18Xk6SXwdgmA-01LkDCTTBiIBMgsV4znTXIdM9U_ySDGRG6A8jFGbzOQSIwY5ysgIYUwwIte7vSvbfHXo2rQqnMayVDU2nUtpzGMKXELUo-EO1bZxzmKermxRKbtJKaRbl2nvMv3rso9d7S90WYXmEPqR1wPxDlg3Za_JLctujTZdoCrbxf-7vwHqBH9f</recordid><startdate>20170601</startdate><enddate>20170601</enddate><creator>Bardis, Costas N</creator><creator>Kavouras, Stavros A</creator><creator>Adams, J.D</creator><creator>Geladas, Nickos D</creator><creator>Panagiotakos, Demosthenis B</creator><creator>Sidossis, Labros S</creator><general>American College of Sports Medicine</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>7X8</scope></search><sort><creationdate>20170601</creationdate><title>Prescribed Drinking Leads to Better Cycling Performance than Ad Libitum Drinking</title><author>Bardis, Costas N ; Kavouras, Stavros A ; Adams, J.D ; Geladas, Nickos D ; Panagiotakos, Demosthenis B ; Sidossis, Labros S</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c4072-2c97f2092cd06709b4a25f2c5c42a33156a27fd01548ecdbdf9e620fe96d77dd3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2017</creationdate><topic>Adult</topic><topic>Athletic Performance - physiology</topic><topic>Bicycling - physiology</topic><topic>Blood Pressure - physiology</topic><topic>Body Weight - physiology</topic><topic>Dehydration - prevention & control</topic><topic>Drinking</topic><topic>Heart Rate - physiology</topic><topic>Hot Temperature</topic><topic>Humans</topic><topic>Lactic Acid - blood</topic><topic>Male</topic><topic>Perception</topic><topic>Physical Endurance - physiology</topic><topic>Physical Exertion - physiology</topic><topic>Sweating</topic><topic>Thirst - physiology</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Bardis, Costas N</creatorcontrib><creatorcontrib>Kavouras, Stavros A</creatorcontrib><creatorcontrib>Adams, J.D</creatorcontrib><creatorcontrib>Geladas, Nickos D</creatorcontrib><creatorcontrib>Panagiotakos, Demosthenis B</creatorcontrib><creatorcontrib>Sidossis, Labros S</creatorcontrib><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>Medicine and science in sports and exercise</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Bardis, Costas N</au><au>Kavouras, Stavros A</au><au>Adams, J.D</au><au>Geladas, Nickos D</au><au>Panagiotakos, Demosthenis B</au><au>Sidossis, Labros S</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Prescribed Drinking Leads to Better Cycling Performance than Ad Libitum Drinking</atitle><jtitle>Medicine and science in sports and exercise</jtitle><addtitle>Med Sci Sports Exerc</addtitle><date>2017-06-01</date><risdate>2017</risdate><volume>49</volume><issue>6</issue><spage>1244</spage><epage>1251</epage><pages>1244-1251</pages><issn>0195-9131</issn><eissn>1530-0315</eissn><abstract>Drinking ad libitum during exercise often leads to dehydration ranging from -1 to -3% of body weight.
PURPOSETo study the effect of a prescribed hydration protocol matching fluid losses on a simulated 30-km criterium-like cycling performance in the heat (31.6±0.5 °C).
METHODTen elite, heat-acclimatized, male endurance cyclists (30±5 y, 76.5±7.2 kg, 1.81±0.07 m, VO2peak61.3±5.2 ml[BULLET OPERATOR]min[BULLET OPERATOR]kg, body fat10.5±3.3%, Powermax392±33 W) performed three sets of criterium-like cycling, consisted of a 5-km at 50% power max, followed by a 5-km all out at 3% grade (total 30 km). Participants rode the course on two separate occasions and in a counter balanced order, either during ad libitum drinking (ADdrink water as much as they wished) and prescribed drinking (PDdrink water every 1 km to much fluid losses). To design the fluid intake during PD participants performed a familiarization trial to calculate fluid losses.
RESULTSFollowing the exercise protocol the cyclist dehydrated by -0.5±0.3 and -1.8±0.7% of their body weight for the PD and AD trial, respectively. Mean cycling speed for the 3rd bout of the 5 km hill cycling was greater in PD (30.2±2.4 km[BULLET OPERATOR]h) than in the AD trial (28.8±2.6 km[BULLET OPERATOR]h), by 5.1±4.8% (P<0.05). Gastrointestinal, mean skin and mean body temperatures immediately after the last hill climbing were greater in the AD than in the PD trial; (P<0.05). Overall, sweat sensitivity during the three climbing bouts was lower in the AD (15.6±5.7 g[BULLET OPERATOR]W[BULLET OPERATOR]m) than in the PD trial (22.8±3.4 g[BULLET OPERATOR]W[BULLET OPERATOR]m, P<0.05).
CONCLUSIONThe data suggested that prescribed drinking to match fluid losses during exercise in the heat provided a performance advantage due to lower thermoregulatory strain and greater sweating responses.</abstract><cop>United States</cop><pub>American College of Sports Medicine</pub><pmid>28079705</pmid><doi>10.1249/MSS.0000000000001202</doi><tpages>8</tpages></addata></record> |
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| ispartof | Medicine and science in sports and exercise, 2017-06, Vol.49 (6), p.1244-1251 |
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| language | eng |
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| source | MEDLINE; Journals@Ovid LWW Legacy Archive; Journals@Ovid Complete |
| subjects | Adult Athletic Performance - physiology Bicycling - physiology Blood Pressure - physiology Body Weight - physiology Dehydration - prevention & control Drinking Heart Rate - physiology Hot Temperature Humans Lactic Acid - blood Male Perception Physical Endurance - physiology Physical Exertion - physiology Sweating Thirst - physiology |
| title | Prescribed Drinking Leads to Better Cycling Performance than Ad Libitum Drinking |
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