PMID- 8933487
OWN - NLM
STAT- MEDLINE
DCOM- 19970220
LR  - 20190830
IS  - 0195-9131 (Print)
IS  - 0195-9131 (Linking)
VI  - 28
IP  - 11
DP  - 1996 Nov
TI  - Influence of carbohydrate supplementation early in exercise on endurance running 
      capacity.
PG  - 1373-9
AB  - The aim of this study is to examine the effect of carbohydrate (CHO) ingestion 
      during the first hour of treadmill running on endurance capacity. Eleven male 
      subjects ran at 70% VO2max to exhaustion on three occasions one week apart. On 
      two occasions two CHO-electrolyte solutions (a 5.5% (E) and a 6.9% (L) were 
      ingested for the first hour of exercise; water was ingested until exhaustion. On 
      the third occasion water (W) was ingested throughout the run. The order testing 
      was randomly assigned. Exhaustion times for the W, E, and L trials were 109.6 +/- 
      9.6 min, 124.5 +/- 8.4 min, and 121.4 +/- 9.4 min, respectively. There was no 
      difference between the two CHO trials, but time to exhaustion was longer only for 
      the E trial (P < 0.05), compared with the W trial. Nevertheless the average 
      performance times for the combined results of the two CHO trials were longer than 
      the water trial. Carbohydrate ingestion resulted in higher blood glucose 
      concentration (P < 0.01) at 20 min in the E trail only and lower (P < 0.05) serum 
      growth hormone and plasma FFA and glycerol concentrations at 60 min but not at 
      exhaustion in both E and L trials compared with the W trial. Blood lactate, 
      plasma ammonia, electrolytes, catecholamines, and serum insulin and cortisol 
      concentrations were not different in the three trials. In conclusion, CHO 
      ingestion during the first hour of exercise improves endurance capacity go a 
      greater extent compared with water alone.
FAU - Tsintzas, O K
AU  - Tsintzas OK
AD  - Department of Physical Education, Sports Science and Recreation Management, 
      Loughborough University, Leicestershire, United Kingdom.
FAU - Williams, C
AU  - Williams C
FAU - Wilson, W
AU  - Wilson W
FAU - Burrin, J
AU  - Burrin J
LA  - eng
PT  - Clinical Trial
PT  - Journal Article
PT  - Randomized Controlled Trial
PT  - Research Support, Non-U.S. Gov't
PL  - United States
TA  - Med Sci Sports Exerc
JT  - Medicine and science in sports and exercise
JID - 8005433
RN  - 0 (Dietary Carbohydrates)
RN  - 0 (Rehydration Solutions)
SB  - IM
MH  - Adult
MH  - *Dietary Carbohydrates
MH  - Exercise/*physiology
MH  - Heart Rate
MH  - Humans
MH  - Male
MH  - Oxygen Consumption
MH  - Physical Endurance/*physiology
MH  - *Rehydration Solutions
MH  - Running/*physiology
MH  - Time Factors
EDAT- 1996/11/01 00:00
MHDA- 1996/11/01 00:01
CRDT- 1996/11/01 00:00
PHST- 1996/11/01 00:00 [pubmed]
PHST- 1996/11/01 00:01 [medline]
PHST- 1996/11/01 00:00 [entrez]
AID - 10.1097/00005768-199611000-00005 [doi]
PST - ppublish
SO  - Med Sci Sports Exerc. 1996 Nov;28(11):1373-9. doi: 
      10.1097/00005768-199611000-00005.