PMID- 14967870
OWN - NLM
STAT- MEDLINE
DCOM- 20040610
LR  - 20220409
IS  - 1526-484X (Print)
IS  - 1526-484X (Linking)
VI  - 13
IP  - 4
DP  - 2003 Dec
TI  - Endurance capacity and high-intensity exercise performance responses to a high 
      fat diet.
PG  - 466-78
AB  - The effects of adaptation to a high-fat diet on endurance performance are 
      equivocal, and there is little data regarding the effects on high-intensity 
      exercise performance. This study examined the effects of a high-fat/moderate 
      protein diet on submaximal, maximal, and supramaximal performance. Twenty 
      non-highly trained men were assigned to either a high-fat/moderate protein (HFMP; 
      61% fat diet) (n = 12) or a control (C; 25% fat) group (n = 8). A maximal oxygen 
      consumption test, two 30-s Wingate anaerobic tests, and a 45-min timed ride were 
      performed before and after 6 weeks of diet and training. Body mass decreased 
      significantly (-2.2 kg; p < or = .05) in HFMP subjects. Maximal oxygen 
      consumption significantly decreased in the HFMP group (3.5 +/- 0.14 to 3.27 +/- 
      0.09 L x min(-1)) but was unaffected when corrected for body mass. Perceived 
      exertion was significantly higher during this test in the HFMP group. Main time 
      effects indicated that peak and mean power decreased significantly during bout 1 
      of the Wingate sprints in the HFMP (-10 and -20%, respectively) group but not the 
      C (-8 and -16%, respectively) group. Only peak power was lower during bout 1 in 
      the HFMP group when corrected for body mass. Despite significantly reduced RER 
      values in the HFMP group during the 45-min cycling bout, work output was 
      significantly decreased (-18%). Adaptation to a 6-week HFMP diet in non-highly 
      trained men resulted in increased fat oxidation during exercise and small 
      decrements in peak power output and endurance performance. These deleterious 
      effects on exercise performance may be accounted for in part by a reduction in 
      body mass and/or increased ratings of perceived exertion.
FAU - Fleming, Jesse
AU  - Fleming J
AD  - Department of Kinesiology, University of Connecticut, Storrs, CT 06269-1110, USA.
FAU - Sharman, Matthew J
AU  - Sharman MJ
FAU - Avery, Neva G
AU  - Avery NG
FAU - Love, Dawn M
AU  - Love DM
FAU - Gomez, Ana L
AU  - Gomez AL
FAU - Scheett, Timothy P
AU  - Scheett TP
FAU - Kraemer, William J
AU  - Kraemer WJ
FAU - Volek, Jeff S
AU  - Volek JS
LA  - eng
PT  - Clinical Trial
PT  - Journal Article
PT  - Randomized Controlled Trial
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 (Carbohydrates)
RN  - 0 (Dietary Fats)
RN  - 9005-79-2 (Glycogen)
SB  - IM
MH  - Adaptation, Physiological
MH  - Adult
MH  - Carbohydrate Metabolism
MH  - Carbohydrates/administration & dosage
MH  - Dietary Fats/*administration & dosage/*metabolism
MH  - Glycogen/metabolism
MH  - Humans
MH  - Male
MH  - Middle Aged
MH  - Muscle, Skeletal/metabolism
MH  - Oxidation-Reduction
MH  - Oxygen Consumption
MH  - Physical Endurance/*physiology
MH  - Weight Loss/drug effects/*physiology
EDAT- 2004/02/18 05:00
MHDA- 2004/06/21 10:00
CRDT- 2004/02/18 05:00
PHST- 2004/02/18 05:00 [pubmed]
PHST- 2004/06/21 10:00 [medline]
PHST- 2004/02/18 05:00 [entrez]
AID - 10.1123/ijsnem.13.4.466 [doi]
PST - ppublish
SO  - Int J Sport Nutr Exerc Metab. 2003 Dec;13(4):466-78. doi: 
      10.1123/ijsnem.13.4.466.