PMID- 11993622
OWN - NLM
STAT- MEDLINE
DCOM- 20021025
LR  - 20191105
IS  - 1526-484X (Print)
IS  - 1526-484X (Linking)
VI  - 12
IP  - 1
DP  - 2002 Mar
TI  - Energy balance during an ironman triathlon in male and female triathletes.
PG  - 47-62
AB  - Energy balance of 10 male and 8 female triathletes participating in an Ironman 
      event (3.8-km swim, 180-km cycle, 42.2-km run) was investigated. Energy intake 
      (EI) was monitored at 7 designated points by dietary recall of food and fluid 
      consumption. Energy expenditure (EE) during cycling and running was calculated 
      using heart rate-VO, regression equations and during swimming by the multiple 
      regression equation: Y = 3.65v+ 0.02W- 2.545 where Yis VO,in L x min(-1), v is 
      the velocity in m s(-1), Wis the body weight in kilograms. Total EE (10,036 +/- 
      931 and 8,570 +/- 1,014 kcal) was significantly greater than total EI (3,940 +/- 
      868 and 3,115 +/- 914 kcal, p <.001) for males and females, respectively, 
      although energy balance was not different between genders. Finishing time was 
      inversely related to carbohydrate (CHO) intake (g x kg(-1) x h(-1)) during the 
      marathon run for males (r = -.75,p <.05), and not females, suggesting that 
      increasing CHO ingestion during the run may have been a useful strategy for 
      improving Ironman performance in male triathletes.
FAU - Kimber, Nicholas E
AU  - Kimber NE
AD  - Department of Human Biology and Nutritional Sciences at the University of Guelph, 
      ON, Canada.
FAU - Ross, Jenny J
AU  - Ross JJ
FAU - Mason, Sue L
AU  - Mason SL
FAU - Speedy, Dale B
AU  - Speedy DB
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
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  - 0 (Sodium, Dietary)
SB  - IM
MH  - Adult
MH  - Bicycling/physiology
MH  - Body Composition
MH  - Dietary Carbohydrates/*administration & dosage/metabolism
MH  - Energy Intake/*physiology
MH  - Energy Metabolism/*physiology
MH  - Female
MH  - Humans
MH  - Male
MH  - Mental Recall
MH  - Middle Aged
MH  - Oxygen Consumption
MH  - Running/physiology
MH  - Sex Characteristics
MH  - Sodium, Dietary/administration & dosage
MH  - Sports/*physiology
MH  - Swimming/physiology
EDAT- 2002/05/08 10:00
MHDA- 2002/10/31 04:00
CRDT- 2002/05/08 10:00
PHST- 2002/05/08 10:00 [pubmed]
PHST- 2002/10/31 04:00 [medline]
PHST- 2002/05/08 10:00 [entrez]
AID - 10.1123/ijsnem.12.1.47 [doi]
PST - ppublish
SO  - Int J Sport Nutr Exerc Metab. 2002 Mar;12(1):47-62. doi: 10.1123/ijsnem.12.1.47.