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Cited by 92

The DOI matches its Crossref record; 3 of the 3 references it cites were found in a registry or an index.

Sweat rate and fluid turnover in American football players compared with runners in a hot and humid environment

Godek, S Fowkes, Bartolozzi, A R, Godek, J J·2005·British Journal of Sports Medicine
DOI 10.1136/bjsm.2004.011767
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Abstract

Objectives: To determine sweat rate (SwR) and fluid requirements for American footballers practicing in a hot, humid environment compared with cross country runners in the same conditions. Methods: Fifteen subjects, 10 footballers and five runners, participated. On the 4th and 8th day of preseason two a day practices, SwR during exercise was determined in both morning and afternoon practices/runs from the change in body mass adjusted for fluids consumed and urine produced. Unpaired t tests were used to determine differences between groups. Results: Overall SwR measured in litres/h was higher in the footballers than the cross country runners (2.14 (0.53) v 1.77 (0.4); p<0.01). Total sweat loss in both morning (4.83 (1.2) v 1.56 (0.39) litres) and afternoon (4.8 (1.2) v 1.97 (0.28) litres) practices/runs, and daily sweat losses (9.4 (2.2) v 3.53 (0.54) litres) were higher in the footballers (p<0.0001). The footballers consumed larger volumes of fluid during both morning and afternoon practices/runs (23.9 (8.9) v 5.5 (3.1) ml/min and 23.5 (7.3) v 13.6 (5.6) ml/min; p<0.01). For complete hydration, the necessary daily fluid consumption calculated as 130% of daily sweat loss in the footballers was 12.2 (2.9) litres compared with 4.6 (0.7) litres in the runners (p<0.0001). Calculated 24 hour fluid requirements in the footballers ranged from 8.8 to 19 litres. Conclusions: The American footballers had a high SwR with large total daily sweat losses. Consuming large volumes of hypotonic fluid may promote sodium dilution. Recommendations for fluid and electrolyte replacement must be carefully considered and monitored in footballers to promote safe hydration and avoid hyponatraemia.

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Metadata

Authors
Godek, S. F., Bartolozzi, A. R., & Godek, J. J.
Venue
British Journal of Sports Medicine
Publisher
BMJ
Published
2005-03-25
Volume
39
Issue
4
Pages
205-211
ISSN
  • 0306-3674
  • 1473-0480
DOI
10.1136/bjsm.2004.011767
Cited by
92
References
3
Language
en

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