Comparison of milk, sports drink and water in rehydrating rugby players

This study was carried out to assess the effectiveness of milk (M), sodium added milk (Na+M), sports drink (SD) and water (W) for restoring fluid balance after exerciseinduced dehydration among 25 UPM rugby players. It also compared the after-effects of consuming all these drinks after exercise-i...

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Main Author:	Alagappan, Patmavathy
Format:	Thesis
Language:	English
Published:	2016
Subjects:	Rugby football players - Case studies Athletes - Nutrition Beverages - Analysis
Online Access:	http://psasir.upm.edu.my/id/eprint/77484/1/FPP%202018%2043%20ir.pdf
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id	my-upm-ir.77484
record_format	uketd_dc
spelling	my-upm-ir.774842022-01-27T06:48:02Z Comparison of milk, sports drink and water in rehydrating rugby players 2016-06 Alagappan, Patmavathy This study was carried out to assess the effectiveness of milk (M), sodium added milk (Na+M), sports drink (SD) and water (W) for restoring fluid balance after exerciseinduced dehydration among 25 UPM rugby players. It also compared the after-effects of consuming all these drinks after exercise-induced dehydration. A randomized crossover counterbalanced designed was utilized to compare the after-effects of consuming the four previously mentioned fluids after running on a threadmill intermittently in a hot and humid environment to lose 1.7 + 0.1% of body mass (BM). Drinking commenced 20 min after the end of exercise and participants drank M, Na+M, SD, or W equivalent to 150% of their BM lost. Urine samples were collected to assess fluid balance. Participants were also asked to rate the after-effects experienced. Urine excretion over the recovery period did not change much during the M and Na+M trials whereas there was a marked increase in output between 1h and 2h after drinking water and sports drink. Cumulative urine output was significantly less (p = 0.0001) after the consumption of M (817.35 + 327.16 ml) and Na+M (642.78 + 316.30 ml) compared to W (1410.04 + 525.25 ml) and SD (1162.70 + 378.92 ml). Subjects remained in net positive fluid balance (euhydrated) throughout the recovery period after drinking M and Na+M but returned to net negative fluid balance 1h after drinking the other drinks; SD and W. However, participants experienced more stomach pain/discomfort and diarrhoea after M (48%) and Na+M (68%) consumption, while the consumption of SD and W did not seem to induce diarrhoea. The results suggest that sports drinks may be a more effective post-exercise rehydration drink for Asian athletes as the higher frequency of lactose intolerance after milk intake may affect the state of fluid balance. Sodium added milk can be considered for use after exercise by athletes accustomed to drinking milk or for those who are able to tolerate lactose intake. Rugby football players - Case studies Athletes - Nutrition Beverages - Analysis 2016-06 Thesis http://psasir.upm.edu.my/id/eprint/77484/ http://psasir.upm.edu.my/id/eprint/77484/1/FPP%202018%2043%20ir.pdf text en public masters Universiti Putra Malaysia Rugby football players - Case studies Athletes - Nutrition Beverages - Analysis Kok, Lian Yee
institution	Universiti Putra Malaysia
collection	PSAS Institutional Repository
language	English
advisor	Kok, Lian Yee
topic	Rugby football players - Case studies Athletes - Nutrition Beverages - Analysis
spellingShingle	Rugby football players - Case studies Athletes - Nutrition Beverages - Analysis Alagappan, Patmavathy Comparison of milk, sports drink and water in rehydrating rugby players
description	This study was carried out to assess the effectiveness of milk (M), sodium added milk (Na+M), sports drink (SD) and water (W) for restoring fluid balance after exerciseinduced dehydration among 25 UPM rugby players. It also compared the after-effects of consuming all these drinks after exercise-induced dehydration. A randomized crossover counterbalanced designed was utilized to compare the after-effects of consuming the four previously mentioned fluids after running on a threadmill intermittently in a hot and humid environment to lose 1.7 + 0.1% of body mass (BM). Drinking commenced 20 min after the end of exercise and participants drank M, Na+M, SD, or W equivalent to 150% of their BM lost. Urine samples were collected to assess fluid balance. Participants were also asked to rate the after-effects experienced. Urine excretion over the recovery period did not change much during the M and Na+M trials whereas there was a marked increase in output between 1h and 2h after drinking water and sports drink. Cumulative urine output was significantly less (p = 0.0001) after the consumption of M (817.35 + 327.16 ml) and Na+M (642.78 + 316.30 ml) compared to W (1410.04 + 525.25 ml) and SD (1162.70 + 378.92 ml). Subjects remained in net positive fluid balance (euhydrated) throughout the recovery period after drinking M and Na+M but returned to net negative fluid balance 1h after drinking the other drinks; SD and W. However, participants experienced more stomach pain/discomfort and diarrhoea after M (48%) and Na+M (68%) consumption, while the consumption of SD and W did not seem to induce diarrhoea. The results suggest that sports drinks may be a more effective post-exercise rehydration drink for Asian athletes as the higher frequency of lactose intolerance after milk intake may affect the state of fluid balance. Sodium added milk can be considered for use after exercise by athletes accustomed to drinking milk or for those who are able to tolerate lactose intake.
format	Thesis
qualification_level	Master's degree
author	Alagappan, Patmavathy
author_facet	Alagappan, Patmavathy
author_sort	Alagappan, Patmavathy
title	Comparison of milk, sports drink and water in rehydrating rugby players
title_short	Comparison of milk, sports drink and water in rehydrating rugby players
title_full	Comparison of milk, sports drink and water in rehydrating rugby players
title_fullStr	Comparison of milk, sports drink and water in rehydrating rugby players
title_full_unstemmed	Comparison of milk, sports drink and water in rehydrating rugby players
title_sort	comparison of milk, sports drink and water in rehydrating rugby players
granting_institution	Universiti Putra Malaysia
publishDate	2016
url	http://psasir.upm.edu.my/id/eprint/77484/1/FPP%202018%2043%20ir.pdf
_version_	1747813229813301248

Comparison of milk, sports drink and water in rehydrating rugby players

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