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Fluid and Electrolyte Balance During Two Different Preseason Training Sessions in Elite Rugby Union Players

Samuel D. Cosgrove, Thomas D. Love, Rachel C. Brown, Dane F. Baker, Anna S. Howe, Katherine E. Black, Tom Love Orcid Logo

Journal of Strength and Conditioning Research, Volume: 28, Issue: 2, Pages: 520 - 527

Swansea University Author: Tom Love Orcid Logo

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DOI (Published version): 10.1519/JSC.0b013e3182986d43

Abstract

The purpose of this study was to compare fluid balance between a resistance and an aerobic training sessions, in elite rugby players. It is hypothesized that resistance exercise will result in a higher prevalence of overdrinking, whereas during the aerobic session, underdrinking will be more prevale...

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Published in: Journal of Strength and Conditioning Research
ISSN: 1064-8011
Published: 2014
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URI: https://cronfa.swan.ac.uk/Record/cronfa15737
first_indexed 2013-09-05T01:58:24Z
last_indexed 2018-02-09T04:47:48Z
id cronfa15737
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spelling 2017-07-10T16:08:37.1461449 v2 15737 2013-09-04 Fluid and Electrolyte Balance During Two Different Preseason Training Sessions in Elite Rugby Union Players ec50e8c32b3a1274b1022f9d5412478c 0000-0002-9404-5394 Tom Love Tom Love true false 2013-09-04 EAAS The purpose of this study was to compare fluid balance between a resistance and an aerobic training sessions, in elite rugby players. It is hypothesized that resistance exercise will result in a higher prevalence of overdrinking, whereas during the aerobic session, underdrinking will be more prevalent. As with previous fluid balance studies, this was an observational study. Twenty-six players completed the resistance training session, and 20 players completed the aerobic training session. All players were members of an elite rugby union squad competing in the southern hemisphere's premier competition. For both sessions, players provided a preexercise urine sample to determine hydration status, pre- and postexercise measures of body mass, and blood sodium concentration were taken, and the weight of drink bottles were recorded to calculate sweat rates and fluid intake rates. Sweat patches were positioned on the shoulder of the players, and these remained in place throughout each training session and were later analyzed for sodium concentration. The percentage of sweat loss replaced was higher in the resistance (196 ± 130%) than the aerobic training session (56 ± 17%; p = 0.002). Despite this, no cases of hyponatremia were detected. The results also indicated that more than 80% of players started training in a hypohydrated state. Fluid intake seems to differ depending on the nature of the exercise session. In this group of athletes, players did not match their fluid intakes with their sweat loss, resulting in overdrinking during resistance training and underdrinking in aerobic training. Therefore, hydration strategies and education need to be tailored to the exercise session. Furthermore, given the large number of players arriving at training hypohydrated, improved hydration strategies away from the training venue are required. Journal Article Journal of Strength and Conditioning Research 28 2 520 527 1064-8011 hydration, sweat rate, sweat sodium, blood sodium 28 2 2014 2014-02-28 10.1519/JSC.0b013e3182986d43 http://journals.lww.com/nsca-jscr/Abstract/publishahead/Fluid_and_electrolyte_balance_during_two_different.97770.aspx COLLEGE NANME Engineering and Applied Sciences School COLLEGE CODE EAAS Swansea University 2017-07-10T16:08:37.1461449 2013-09-04T17:19:13.4803993 Faculty of Science and Engineering School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Sport and Exercise Sciences Samuel D. Cosgrove 1 Thomas D. Love 2 Rachel C. Brown 3 Dane F. Baker 4 Anna S. Howe 5 Katherine E. Black 6 Tom Love 0000-0002-9404-5394 7 0015737-01042016215058.pdf Cosgrove__et__al__(2014)__TL__Submission.pdf 2016-04-01T21:50:58.0070000 Output 376149 application/pdf Accepted Manuscript true 2016-04-01T00:00:00.0000000 true
title Fluid and Electrolyte Balance During Two Different Preseason Training Sessions in Elite Rugby Union Players
spellingShingle Fluid and Electrolyte Balance During Two Different Preseason Training Sessions in Elite Rugby Union Players
Tom Love
title_short Fluid and Electrolyte Balance During Two Different Preseason Training Sessions in Elite Rugby Union Players
title_full Fluid and Electrolyte Balance During Two Different Preseason Training Sessions in Elite Rugby Union Players
title_fullStr Fluid and Electrolyte Balance During Two Different Preseason Training Sessions in Elite Rugby Union Players
title_full_unstemmed Fluid and Electrolyte Balance During Two Different Preseason Training Sessions in Elite Rugby Union Players
title_sort Fluid and Electrolyte Balance During Two Different Preseason Training Sessions in Elite Rugby Union Players
author_id_str_mv ec50e8c32b3a1274b1022f9d5412478c
author_id_fullname_str_mv ec50e8c32b3a1274b1022f9d5412478c_***_Tom Love
author Tom Love
author2 Samuel D. Cosgrove
Thomas D. Love
Rachel C. Brown
Dane F. Baker
Anna S. Howe
Katherine E. Black
Tom Love
format Journal article
container_title Journal of Strength and Conditioning Research
container_volume 28
container_issue 2
container_start_page 520
publishDate 2014
institution Swansea University
issn 1064-8011
doi_str_mv 10.1519/JSC.0b013e3182986d43
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 http://journals.lww.com/nsca-jscr/Abstract/publishahead/Fluid_and_electrolyte_balance_during_two_different.97770.aspx
document_store_str 1
active_str 0
description The purpose of this study was to compare fluid balance between a resistance and an aerobic training sessions, in elite rugby players. It is hypothesized that resistance exercise will result in a higher prevalence of overdrinking, whereas during the aerobic session, underdrinking will be more prevalent. As with previous fluid balance studies, this was an observational study. Twenty-six players completed the resistance training session, and 20 players completed the aerobic training session. All players were members of an elite rugby union squad competing in the southern hemisphere's premier competition. For both sessions, players provided a preexercise urine sample to determine hydration status, pre- and postexercise measures of body mass, and blood sodium concentration were taken, and the weight of drink bottles were recorded to calculate sweat rates and fluid intake rates. Sweat patches were positioned on the shoulder of the players, and these remained in place throughout each training session and were later analyzed for sodium concentration. The percentage of sweat loss replaced was higher in the resistance (196 ± 130%) than the aerobic training session (56 ± 17%; p = 0.002). Despite this, no cases of hyponatremia were detected. The results also indicated that more than 80% of players started training in a hypohydrated state. Fluid intake seems to differ depending on the nature of the exercise session. In this group of athletes, players did not match their fluid intakes with their sweat loss, resulting in overdrinking during resistance training and underdrinking in aerobic training. Therefore, hydration strategies and education need to be tailored to the exercise session. Furthermore, given the large number of players arriving at training hypohydrated, improved hydration strategies away from the training venue are required.
published_date 2014-02-28T18:29:57Z
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