THIRST RESPONSE TO POST-EXERCISE FLUID REPLACEMENT NEEDS AND CONTROLLED DRINKING
Perceived thirst (TP) was evaluated as a dependent variable: can it distinguish among several levels of acute dehydration, is it reliable, and how does it respond to the ingestion of a fixed water volume post exercise? In a repeated-measures design, eight physically active students (24.5±3.6 years,...
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Universidad de Costa Rica
2016-12-01
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| Series: | Pensar en Movimiento |
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| Online Access: | https://revistas.ucr.ac.cr/index.php/pem/article/view/25853 |
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| author | Catalina Capitán-Jiménez Luis Fernando Aragón-Vargas |
| author_facet | Catalina Capitán-Jiménez Luis Fernando Aragón-Vargas |
| author_sort | Catalina Capitán-Jiménez |
| collection | DOAJ |
| description | Perceived thirst (TP) was evaluated as a dependent variable: can it distinguish among several levels of acute dehydration, is it reliable, and how does it respond to the ingestion of a fixed water volume post exercise? In a repeated-measures design, eight physically active students (24.5±3.6 years, mean±SD), reported to the laboratory on four non-consecutive days. They remained at rest or exercised at 32±3°C db and 65±6% rh to a randomly assigned dehydration equivalent to 1, 2, and 3% of body mass (BM). Following exercise, participants ingested a fixed water volume of 1.20% BM in 30 minutes; urine output, TP and plasma volume changes were assessed every 30 minutes over 3 hours. Post-exercise TP was not different before and after showering (p = 0.860), but it was significantly different among conditions (TP = 2.50 ± 0.45, 4.44 ± 0.72, 6.38 ± 0.82, and 8.63 ± 0.18 for 0, 1, 2, and 3% BM, p = 0.001). TP was associated with net fluid balance (rpart = -0.62, p < 0.0001) but, soon after drinking, TP was the same regardless of dehydration (p>0.05). Thirst perception is valid and reliable in the absence of drinking but it responds inappropriately to water intake. |
| format | Article |
| id | doaj-art-939d574d1b444e1fbf818588b7191f27 |
| institution | Kabale University |
| issn | 1659-4436 |
| language | English |
| publishDate | 2016-12-01 |
| publisher | Universidad de Costa Rica |
| record_format | Article |
| series | Pensar en Movimiento |
| spelling | doaj-art-939d574d1b444e1fbf818588b7191f272025-01-02T23:19:10ZengUniversidad de Costa RicaPensar en Movimiento1659-44362016-12-01142116THIRST RESPONSE TO POST-EXERCISE FLUID REPLACEMENT NEEDS AND CONTROLLED DRINKINGCatalina Capitán-Jiménez0https://orcid.org/0000-0003-2984-4699Luis Fernando Aragón-Vargas1https://orcid.org/0000-0002-8030-974XUniversidad de Costa Rica, San José, Costa RicaUniversidad de Costa Rica, San José, Costa RicaPerceived thirst (TP) was evaluated as a dependent variable: can it distinguish among several levels of acute dehydration, is it reliable, and how does it respond to the ingestion of a fixed water volume post exercise? In a repeated-measures design, eight physically active students (24.5±3.6 years, mean±SD), reported to the laboratory on four non-consecutive days. They remained at rest or exercised at 32±3°C db and 65±6% rh to a randomly assigned dehydration equivalent to 1, 2, and 3% of body mass (BM). Following exercise, participants ingested a fixed water volume of 1.20% BM in 30 minutes; urine output, TP and plasma volume changes were assessed every 30 minutes over 3 hours. Post-exercise TP was not different before and after showering (p = 0.860), but it was significantly different among conditions (TP = 2.50 ± 0.45, 4.44 ± 0.72, 6.38 ± 0.82, and 8.63 ± 0.18 for 0, 1, 2, and 3% BM, p = 0.001). TP was associated with net fluid balance (rpart = -0.62, p < 0.0001) but, soon after drinking, TP was the same regardless of dehydration (p>0.05). Thirst perception is valid and reliable in the absence of drinking but it responds inappropriately to water intake.https://revistas.ucr.ac.cr/index.php/pem/article/view/25853deshidratacióninjesta de líquidopercepción de sedequilibrio de agua y electrolitoshumanos |
| spellingShingle | Catalina Capitán-Jiménez Luis Fernando Aragón-Vargas THIRST RESPONSE TO POST-EXERCISE FLUID REPLACEMENT NEEDS AND CONTROLLED DRINKING Pensar en Movimiento deshidratación injesta de líquido percepción de sed equilibrio de agua y electrolitos humanos |
| title | THIRST RESPONSE TO POST-EXERCISE FLUID REPLACEMENT NEEDS AND CONTROLLED DRINKING |
| title_full | THIRST RESPONSE TO POST-EXERCISE FLUID REPLACEMENT NEEDS AND CONTROLLED DRINKING |
| title_fullStr | THIRST RESPONSE TO POST-EXERCISE FLUID REPLACEMENT NEEDS AND CONTROLLED DRINKING |
| title_full_unstemmed | THIRST RESPONSE TO POST-EXERCISE FLUID REPLACEMENT NEEDS AND CONTROLLED DRINKING |
| title_short | THIRST RESPONSE TO POST-EXERCISE FLUID REPLACEMENT NEEDS AND CONTROLLED DRINKING |
| title_sort | thirst response to post exercise fluid replacement needs and controlled drinking |
| topic | deshidratación injesta de líquido percepción de sed equilibrio de agua y electrolitos humanos |
| url | https://revistas.ucr.ac.cr/index.php/pem/article/view/25853 |
| work_keys_str_mv | AT catalinacapitanjimenez thirstresponsetopostexercisefluidreplacementneedsandcontrolleddrinking AT luisfernandoaragonvargas thirstresponsetopostexercisefluidreplacementneedsandcontrolleddrinking |