PMID- 23070826
OWN - NLM
STAT- MEDLINE
DCOM- 20130923
LR  - 20191112
IS  - 1543-2742 (Electronic)
IS  - 1526-484X (Linking)
VI  - 23
IP  - 2
DP  - 2013 Apr
TI  - Dietary tendencies as predictors of marathon time in novice marathoners.
PG  - 170-7
AB  - BACKGROUND: The effects of dietary factors such as carbohydrate (CHO) on 
      endurance-running performance have been extensively studied under 
      laboratory-based and simulated field conditions. Evidence from "real-life" 
      events, however, is poorly characterized. The purpose of this observational study 
      was to examine the associations between prerace and in-race nutrition tendencies 
      and performance in a sample of novice marathoners. METHODS: Forty-six college 
      students (36 women and 10 men) age 21.3 +/- 3.3 yr recorded diet for 3 d before, 
      the morning of, and during a 26.2-mile marathon. Anthropometric, physiological, 
      and performance measurements were assessed before the marathon so the 
      associations between diet and marathon time could be included as part of a 
      stepwise-regression model. RESULTS: Mean marathon time was 266 +/- 42 min. A 
      pre-marathon 2-mile time trial explained 73% of the variability in marathon time 
      (adjusted R2 = .73, p < .001). Day-before + morning-of CHO (DBMC) was the only 
      other significant predictor of marathon time, explaining an additional 4% of the 
      variability in marathon time (adjusted R2 = .77, p = .006). Other factors such as 
      age, body-mass index, gender, day-before + morning-of energy, and in-race CHO 
      were not significant independent predictors of marathon time. CONCLUSIONS: In 
      this sample of primarily novice marathoners, DBMC intake was associated with 
      faster marathon time, independent of other known predictors. These results 
      suggest that novice and recreational marathoners should consider consuming a 
      moderate to high amount of CHO in the 24-36 hr before a marathon.
FAU - Wilson, Patrick B
AU  - Wilson PB
AD  - School of Kinesiology, University of Minnesota, Minneapolis, MN, USA.
FAU - Ingraham, Stacy J
AU  - Ingraham SJ
FAU - Lundstrom, Chris
AU  - Lundstrom C
FAU - Rhodes, Gregory
AU  - Rhodes G
LA  - eng
PT  - Journal Article
DEP - 20121011
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)
SB  - IM
MH  - Adolescent
MH  - Anthropometry
MH  - Body Mass Index
MH  - *Diet
MH  - Diet Records
MH  - Dietary Carbohydrates/administration & dosage
MH  - Female
MH  - Humans
MH  - Male
MH  - Minnesota
MH  - Nutrition Assessment
MH  - *Physical Endurance
MH  - Prospective Studies
MH  - Recreation
MH  - Running/*physiology
MH  - Young Adult
EDAT- 2012/10/17 06:00
MHDA- 2013/09/24 06:00
CRDT- 2012/10/17 06:00
PHST- 2012/10/17 06:00 [entrez]
PHST- 2012/10/17 06:00 [pubmed]
PHST- 2013/09/24 06:00 [medline]
AID - 2012-0135 [pii]
AID - 10.1123/ijsnem.23.2.170 [doi]
PST - ppublish
SO  - Int J Sport Nutr Exerc Metab. 2013 Apr;23(2):170-7. doi: 10.1123/ijsnem.23.2.170. 
      Epub 2012 Oct 11.