PMID- 10477362
OWN - NLM
STAT- MEDLINE
DCOM- 19991117
LR  - 20191103
IS  - 1050-1606 (Print)
IS  - 1050-1606 (Linking)
VI  - 9
IP  - 3
DP  - 1999 Sep
TI  - A comparison of the gastric emptying characteristics of selected sports drinks.
PG  - 263-74
AB  - The purpose of this study was to determine the effects of repeated ingestion of 
      drinks containing varying concentrations of carbohydrate on gastric emptying rate 
      during steady-state exercise. On five separate occasions, 14 subjects cycled for 
      90 min at an average power output of 151 +/- 2 W. At 15-min intervals, subjects 
      ingested 227 +/- 3 ml of either water, 4% carbohydrate (CHO), 6% CHO, or 8% CHO. 
      Gastric volume was determined prior to each drink and at 90 min using the 
      modified double-sampling technique. Gross gastric volumes were significantly 
      greater and mean gastric emptying rates and the percentage of ingested beverage 
      emptied from the stomach were significantly less for 8% CHO. These data indicate 
      that repeated ingestion of an 8% CHO beverage during exercise significantly 
      reduces gastric emptying rate, whereas lower concentrations of carbohydrate do 
      not. In addition, beverage osmolality is not as important as beverage energy 
      content in influencing gastric emptying rate at these carbohydrate 
      concentrations.
FAU - Murray, R
AU  - Murray R
AD  - Gatorade Exercise Physiology Laboratory, Barrington, IL 60010, USA.
FAU - Bartoli, W
AU  - Bartoli W
FAU - Stofan, J
AU  - Stofan J
FAU - Horn, M
AU  - Horn M
FAU - Eddy, D
AU  - Eddy D
LA  - eng
PT  - Comparative Study
PT  - Journal Article
PL  - United States
TA  - Int J Sport Nutr
JT  - International journal of sport nutrition
JID - 9307702
RN  - 0 (Dietary Carbohydrates)
RN  - 059QF0KO0R (Water)
SB  - IM
MH  - Adult
MH  - *Beverages
MH  - Bicycling
MH  - Dietary Carbohydrates/*administration & dosage
MH  - Energy Intake
MH  - Exercise/*physiology
MH  - Female
MH  - *Gastric Emptying
MH  - Humans
MH  - Male
MH  - Osmolar Concentration
MH  - Oxygen Consumption
MH  - Water
EDAT- 1999/09/08 00:00
MHDA- 1999/09/08 00:01
CRDT- 1999/09/08 00:00
PHST- 1999/09/08 00:00 [pubmed]
PHST- 1999/09/08 00:01 [medline]
PHST- 1999/09/08 00:00 [entrez]
AID - 10.1123/ijsn.9.3.263 [doi]
PST - ppublish
SO  - Int J Sport Nutr. 1999 Sep;9(3):263-74. doi: 10.1123/ijsn.9.3.263.