PMID- 12834574
OWN - NLM
STAT- MEDLINE
DCOM- 20031112
LR  - 20191107
IS  - 1537-890X (Print)
IS  - 1537-890X (Linking)
VI  - 2
IP  - 4
DP  - 2003 Aug
TI  - The role of dietary macronutrients in optimizing endurance performance.
PG  - 194-201
AB  - We have evaluated the evidence underlying certain key nutritional recommendations 
      for endurance sporting activities. A relatively high daily carbohydrate (CHO) 
      intake (> 6 g/kg/d) and CHO ingestion (30-60 g/h) during exercise appears to 
      delay the onset of fatigue. However, the mechanisms of this effect are governed 
      in part by an attenuation of effort perception, rather than solely as a 
      consequence of delaying an impending energy crisis. CHO loading and ingestion 
      also impart some neuroprotection from fatigue during prolonged exercise, as well 
      as high-intensity, intermittent exercise. In addition, the individual response to 
      short-term (5- to 6-day) ingestion of a high-fat diet (> 60% of calories from 
      fat) followed by 1-day CHO loading seems to vary widely, and is most likely to be 
      of benefit only during ultra-endurance activities. Furthermore, CHO and protein 
      intake in the postexercise period aid in protein synthesis and restoration of 
      muscle glycogen stores. However, athletes and their advisors must be prepared to 
      try various nutritional strategies in order to optimize both performance and 
      training.
FAU - Lambert, Estelle V
AU  - Lambert EV
AD  - UCT/MRC Research Unit for Exercise Science and Sports Medicine, Departments of 
      Human Biology, Faculty of Health Sciences, University of Cape Town, PO Box 115, 
      Newlands, 7725 South Africa. vlambert@sports.uct.ac.za
FAU - Goedecke, Julia H
AU  - Goedecke JH
LA  - eng
PT  - Journal Article
PT  - Review
PL  - United States
TA  - Curr Sports Med Rep
JT  - Current sports medicine reports
JID - 101134380
RN  - 0 (Dietary Carbohydrates)
RN  - 0 (Dietary Fats)
RN  - 0 (Dietary Proteins)
SB  - IM
MH  - *Diet
MH  - Dietary Carbohydrates/metabolism
MH  - Dietary Fats/metabolism
MH  - Dietary Proteins/metabolism
MH  - Humans
MH  - Physical Endurance/*physiology
MH  - Sports
RF  - 54
EDAT- 2003/07/02 05:00
MHDA- 2003/11/13 05:00
CRDT- 2003/07/02 05:00
PHST- 2003/07/02 05:00 [pubmed]
PHST- 2003/11/13 05:00 [medline]
PHST- 2003/07/02 05:00 [entrez]
AID - 10.1249/00149619-200308000-00005 [doi]
PST - ppublish
SO  - Curr Sports Med Rep. 2003 Aug;2(4):194-201. doi: 
      10.1249/00149619-200308000-00005.