PMID- 1299496
OWN - NLM
STAT- MEDLINE
DCOM- 19930520
LR  - 20191028
IS  - 1050-1606 (Print)
IS  - 1050-1606 (Linking)
VI  - 2
IP  - 3
DP  - 1992 Sep
TI  - The effects of a carbonated carbohydrate drink on gastric emptying, 
      gastrointestinal distress, and exercise performance.
PG  - 239-50
AB  - To determine the effect of a carbonated carbohydrate (CHO) drink on gastric 
      function and exercise performance, eight male cyclists completed four 120-min 
      bouts of cycling. Each bout consisted of a 105-min ride at 70% VO2max followed by 
      a 15-min self-paced performance ride. During each trial, one of four test 
      solutions was ingested: carbonated CHO (C-10%), noncarbonated CHO (NC-10%), 
      carbonated non-CHO (C), and noncarbonated non-CHO (NC). Following the performance 
      ride, the subjects had their stomach contents removed by aspiration. There were 
      no significant differences in gastric emptying (GE) except for Trial C-10%, which 
      averaged 13.3% less than NC. However, there was no difference in the perception 
      of gastrointestinal comfort between this trial and any other. Average power 
      output during the performance ride was not significantly different between 
      carbonated and noncarbonated trials, or between CHO-fed and no-CHO trials; 
      however, the subjects worked at a greater intensity when fed CHO. Finally, acid 
      base status did not change when a carbonated drink was ingested. This indicates 
      that adding carbonation to a sport drink does not significantly alter gastric 
      function, the perception of GI comfort, or exercise performance.
FAU - Zachwieja, J J
AU  - Zachwieja JJ
AD  - Div. of Metabolism, Washington U. School of Medicine, St. Louis, MO 63110.
FAU - Costill, D L
AU  - Costill DL
FAU - Beard, G C
AU  - Beard GC
FAU - Robergs, R A
AU  - Robergs RA
FAU - Pascoe, D D
AU  - Pascoe DD
FAU - Anderson, D E
AU  - Anderson DE
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
PL  - United States
TA  - Int J Sport Nutr
JT  - International journal of sport nutrition
JID - 9307702
RN  - 0 (Blood Glucose)
RN  - 0 (Carbohydrates)
RN  - 142M471B3J (Carbon Dioxide)
SB  - IM
MH  - Adult
MH  - Bicycling
MH  - Blood Glucose/metabolism
MH  - Carbohydrates/administration & dosage/*pharmacology
MH  - Carbon Dioxide/blood
MH  - *Carbonated Beverages
MH  - Digestive System/drug effects
MH  - *Digestive System Physiological Phenomena
MH  - Exercise/*physiology
MH  - Gastric Emptying/*drug effects
MH  - Humans
MH  - Hydrogen-Ion Concentration
MH  - Male
MH  - Oxygen Consumption/drug effects
EDAT- 1992/09/01 00:00
MHDA- 1992/09/01 00:01
CRDT- 1992/09/01 00:00
PHST- 1992/09/01 00:00 [pubmed]
PHST- 1992/09/01 00:01 [medline]
PHST- 1992/09/01 00:00 [entrez]
AID - 10.1123/ijsn.2.3.239 [doi]
PST - ppublish
SO  - Int J Sport Nutr. 1992 Sep;2(3):239-50. doi: 10.1123/ijsn.2.3.239.