PMID- 31141409
OWN - NLM
STAT- MEDLINE
DCOM- 20210719
LR  - 20210719
IS  - 1543-2742 (Electronic)
IS  - 1526-484X (Linking)
VI  - 29
IP  - 6
DP  - 2019 Nov 1
TI  - Estimated Sweat Loss, Fluid and Carbohydrate Intake, and Sodium Balance of Male 
      Major Junior, AHL, and NHL Players During On-Ice Practices.
PG  - 612-619
LID - ijsnem.2019-0029 [pii]
LID - 10.1123/ijsnem.2019-0029 [doi]
AB  - Several previous studies have reported performance decrements in team sport 
      athletes who dehydrated approximately 1.5-2% of their body mass (BM) through 
      sweating. This study measured on-ice sweat loss, fluid intake, sodium balance, 
      and carbohydrate (CHO) intake of 77 major junior (JR; 19 +/- 1 years), 60 American 
      Hockey League (AHL; 24 +/- 4 years), and 77 National Hockey League (NHL; 27 +/- 5 
      years) players. Sweat loss was calculated from pre- to post-exercise BM plus 
      fluid intake minus urine loss. AHL (2.03 +/- 0.62 L/hr) and NHL (2.02 +/- 0.74 L/hr) 
      players had higher sweat rates (p < .05) than JR players (1.63 +/- 0.58 L/hr). AHL 
      (1.23 +/- 0.69%; p = .006) and NHL (1.29% +/- 0.63%; p < .001) players had  approximately 30% 
      greater BM losses than JR players (0.89% +/- 0.57%). There was no difference in 
      fluid intake between groups (p > .05). Sodium deficits (sodium loss - intake) 
      were greater (p < .05) in AHL (1.68 +/- 0.74 g/hr) and NHL (1.56 +/- 0.84 g/hr) 
      players compared with JR players (1.01 +/- 0.50 g/hr). CHO intake was similar 
      between groups (14-20 g CHO/hr), with 29%, 32%, and 40% of JR, AHL, and NHL 
      players consuming no CHO, respectively. In summary, sweat rates were high in all 
      players, but the majority of players (74/77, 54/60, and 68/77 of JR, AHL, and 
      NHL, respectively) avoided mild dehydration (>2% BM) during 60 min of practice. 
      However,  approximately 15%, 41%, and 48% of the JR, AHL, and NHL players, respectively, may 
      have reached mild dehydration and increased risk of performance decrements in a 
      90-min practice.
FAU - Gamble, Alexander S D
AU  - Gamble ASD
AD  - University of Guelph.
FAU - Bigg, Jessica L
AU  - Bigg JL
AD  - University of Guelph.
FAU - Vermeulen, Tyler F
AU  - Vermeulen TF
AD  - University of Guelph.
FAU - Boville, Stephanie M
AU  - Boville SM
AD  - University of Guelph.
FAU - Eskedjian, Greg S
AU  - Eskedjian GS
AD  - University of Guelph.
FAU - Jannas-Vela, Sebastian
AU  - Jannas-Vela S
AD  - Universidad Finis Terrae.
FAU - Whitfield, Jamie
AU  - Whitfield J
AD  - Australian Catholic University.
FAU - Palmer, Matthew S
AU  - Palmer MS
AD  - St. Francis Xavier University.
FAU - Spriet, Lawrence L
AU  - Spriet LL
AD  - University of Guelph.
LA  - eng
PT  - Comparative Study
PT  - Journal Article
PL  - United States
TA  - Int J Sport Nutr Exerc Metab
JT  - International journal of sport nutrition and exercise metabolism
JID - 100939812
RN  - 0 (Dietary Carbohydrates)
RN  - 9NEZ333N27 (Sodium)
SB  - IM
MH  - Adolescent
MH  - Adult
MH  - Dehydration/*physiopathology
MH  - *Dietary Carbohydrates
MH  - Drinking Behavior/*physiology
MH  - Hockey/*physiology
MH  - Humans
MH  - Male
MH  - Sodium/*metabolism
MH  - Sweating/*physiology
MH  - Young Adult
OTO - NOTNLM
OT  - elite ice hockey
OT  - hydration
OT  - sweat rates
EDAT- 2019/05/30 06:00
MHDA- 2021/07/20 06:00
CRDT- 2019/05/30 06:00
PHST- 2019/01/25 00:00 [received]
PHST- 2019/04/11 00:00 [revised]
PHST- 2019/04/20 00:00 [accepted]
PHST- 2019/05/30 06:00 [pubmed]
PHST- 2021/07/20 06:00 [medline]
PHST- 2019/05/30 06:00 [entrez]
AID - ijsnem.2019-0029 [pii]
AID - 10.1123/ijsnem.2019-0029 [doi]
PST - ppublish
SO  - Int J Sport Nutr Exerc Metab. 2019 Nov 1;29(6):612-619. doi: 
      10.1123/ijsnem.2019-0029.