Post-Exercise Rehydration in Athletes: Effects of Sodium and Carbohydrate in Commercial Hydration Beverages
The effects of varying sodium (Na) and carbohydrate (CHO) in oral rehydration solutions (ORS) and sports drinks (SD) for rehydration following exercise are unclear. We compared an ORS and SD for the percent of fluid retained (%FR) following exercise-induced dehydration and hypothesized a more comple...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-11-01
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| Series: | Nutrients |
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| Online Access: | https://www.mdpi.com/2072-6643/15/22/4759 |
| _version_ | 1797458157573767168 |
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| author | Nhu Q. Ly Karrie L. Hamstra-Wright Craig A. Horswill |
| author_facet | Nhu Q. Ly Karrie L. Hamstra-Wright Craig A. Horswill |
| author_sort | Nhu Q. Ly |
| collection | DOAJ |
| description | The effects of varying sodium (Na) and carbohydrate (CHO) in oral rehydration solutions (ORS) and sports drinks (SD) for rehydration following exercise are unclear. We compared an ORS and SD for the percent of fluid retained (%FR) following exercise-induced dehydration and hypothesized a more complete rehydration for the ORS (45 mmol Na/L and 2.5% CHO) and that the %FR for the ORS and SD (18 mmol Na/L and 6% CHO) would exceed the water placebo (W). A placebo-controlled, randomized, double-blind clinical trial was conducted. To induce 2.6% body mass loss (BML, <i>p</i> > 0.05 between treatments), 26 athletes performed three 90 min interval training sessions without drinking fluids. Post-exercise, participants replaced 100% of BML and were observed for 3.5 h for the %FR. Mean ± SD for the %FR at 3.5 h was 58.1 ± 12.6% (W), 73.9 ± 10.9% (SD), and 76.9 ± 8.0% (ORS). The %FR for the ORS and SD were similar and greater than the W (<i>p</i> < 0.05 ANOVA and Tukey HSD). Two-way ANOVA revealed a significant interaction with the ORS having greater suppression of urine production in the first 60 min vs. W (SD did not differ from W). By 3.5 h, the ORS and SD promoted greater rehydration than did W, but the pattern of rehydration early in recovery favored the ORS. |
| first_indexed | 2024-03-09T16:33:00Z |
| format | Article |
| id | doaj.art-1b1963d2b2fd4d90b6091057c8151264 |
| institution | Directory Open Access Journal |
| issn | 2072-6643 |
| language | English |
| last_indexed | 2024-03-09T16:33:00Z |
| publishDate | 2023-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nutrients |
| spelling | doaj.art-1b1963d2b2fd4d90b6091057c81512642023-11-24T14:59:13ZengMDPI AGNutrients2072-66432023-11-011522475910.3390/nu15224759Post-Exercise Rehydration in Athletes: Effects of Sodium and Carbohydrate in Commercial Hydration BeveragesNhu Q. Ly0Karrie L. Hamstra-Wright1Craig A. Horswill2Independent Researcher, Charlotte, NC 28278, USADepartment of Kinesiology and Nutrition, University of Illinois Chicago, Chicago, IL 60608, USADepartment of Kinesiology and Nutrition, University of Illinois Chicago, Chicago, IL 60608, USAThe effects of varying sodium (Na) and carbohydrate (CHO) in oral rehydration solutions (ORS) and sports drinks (SD) for rehydration following exercise are unclear. We compared an ORS and SD for the percent of fluid retained (%FR) following exercise-induced dehydration and hypothesized a more complete rehydration for the ORS (45 mmol Na/L and 2.5% CHO) and that the %FR for the ORS and SD (18 mmol Na/L and 6% CHO) would exceed the water placebo (W). A placebo-controlled, randomized, double-blind clinical trial was conducted. To induce 2.6% body mass loss (BML, <i>p</i> > 0.05 between treatments), 26 athletes performed three 90 min interval training sessions without drinking fluids. Post-exercise, participants replaced 100% of BML and were observed for 3.5 h for the %FR. Mean ± SD for the %FR at 3.5 h was 58.1 ± 12.6% (W), 73.9 ± 10.9% (SD), and 76.9 ± 8.0% (ORS). The %FR for the ORS and SD were similar and greater than the W (<i>p</i> < 0.05 ANOVA and Tukey HSD). Two-way ANOVA revealed a significant interaction with the ORS having greater suppression of urine production in the first 60 min vs. W (SD did not differ from W). By 3.5 h, the ORS and SD promoted greater rehydration than did W, but the pattern of rehydration early in recovery favored the ORS.https://www.mdpi.com/2072-6643/15/22/4759carbohydratedehydrationoral rehydration solutionsports drinksodium |
| spellingShingle | Nhu Q. Ly Karrie L. Hamstra-Wright Craig A. Horswill Post-Exercise Rehydration in Athletes: Effects of Sodium and Carbohydrate in Commercial Hydration Beverages Nutrients carbohydrate dehydration oral rehydration solution sports drink sodium |
| title | Post-Exercise Rehydration in Athletes: Effects of Sodium and Carbohydrate in Commercial Hydration Beverages |
| title_full | Post-Exercise Rehydration in Athletes: Effects of Sodium and Carbohydrate in Commercial Hydration Beverages |
| title_fullStr | Post-Exercise Rehydration in Athletes: Effects of Sodium and Carbohydrate in Commercial Hydration Beverages |
| title_full_unstemmed | Post-Exercise Rehydration in Athletes: Effects of Sodium and Carbohydrate in Commercial Hydration Beverages |
| title_short | Post-Exercise Rehydration in Athletes: Effects of Sodium and Carbohydrate in Commercial Hydration Beverages |
| title_sort | post exercise rehydration in athletes effects of sodium and carbohydrate in commercial hydration beverages |
| topic | carbohydrate dehydration oral rehydration solution sports drink sodium |
| url | https://www.mdpi.com/2072-6643/15/22/4759 |
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