PMID- 7967586
OWN - NLM
STAT- MEDLINE
DCOM- 19941223
LR  - 20170126
IS  - 0022-4707 (Print)
IS  - 0022-4707 (Linking)
VI  - 34
IP  - 2
DP  - 1994 Jun
TI  - Carbohydrate drinks and cycling performance.
PG  - 161-8
AB  - We compared the effects of similarly tasting orange flavored drinks containing 0% 
      (P), 6.4% (E1), and 10% (E2) carbohydrate (CHO) using 12 well-trained cyclists 
      (VO2max = 5.0 l/min-1) on metabolic responses to exercise (EX) and a sprint type 
      performance ride (PR). Each subject completed 3 separate 2 h EX bouts at 65% 
      VO2max followed by a PR identified as the time in sec to complete 500 revolutions 
      at a constant belt resistance of 29.4 N (ANOVA*). The CHO feedings or placebo of 
      3 ml/kg body weight were given double blind and counter-balanced at 0 min and 
      every 20 min thereafter during EX. Blood samples were drawn and core temperature 
      (Tr) was recorded at 0, 30, 60, 90, and 120 min of EX and 1 min post PR. Blood 
      samples were analyzed for glucose (G) and lactate [LA-]. Blood G at 0 min were 
      similar; however, at 120 min, G was 3.96 mM for P*, 4.57 mM for E1, and 4.77 mM 
      for E2. Blood [LA-] remained similar throughout EX averaging (P, 2.6 mM; E1, 2.9 
      mM; E2, 2.5 mM). Tr at 120 min was also similar (P, 38.5 degrees C; E1, 38.6 
      degrees C; E2, 38.3 degrees C). Mean PR times for P(264.4 s)**, E1 (255.3 s)*, E2 
      (252.4 s)* indicate consumption of a CHO drink during EX improves PR. 
      Furthermore, a 10% CHO drink improves PR more than a 6.4% CHO drink.
FAU - Bacharach, D W
AU  - Bacharach DW
AD  - Human Performance Laboratory, Syracuse University, NY.
FAU - von Duvillard, S P
AU  - von Duvillard SP
FAU - Rundell, K W
AU  - Rundell KW
FAU - Meng, J
AU  - Meng J
FAU - Cring, M R
AU  - Cring MR
FAU - Szmedra, L
AU  - Szmedra L
FAU - Castle, J M
AU  - Castle JM
LA  - eng
PT  - Comparative Study
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
PL  - Italy
TA  - J Sports Med Phys Fitness
JT  - The Journal of sports medicine and physical fitness
JID - 0376337
RN  - 0 (Blood Glucose)
RN  - 0 (Dietary Carbohydrates)
RN  - 0 (Rehydration Solutions)
SB  - IM
MH  - Adolescent
MH  - Adult
MH  - Beverages
MH  - Bicycling/*physiology
MH  - Blood Glucose/metabolism
MH  - *Dietary Carbohydrates
MH  - Double-Blind Method
MH  - Exercise/*physiology
MH  - Humans
MH  - Male
MH  - Oxygen Consumption/drug effects
MH  - Rehydration Solutions/*pharmacology
EDAT- 1994/06/01 00:00
MHDA- 1994/06/01 00:01
CRDT- 1994/06/01 00:00
PHST- 1994/06/01 00:00 [pubmed]
PHST- 1994/06/01 00:01 [medline]
PHST- 1994/06/01 00:00 [entrez]
PST - ppublish
SO  - J Sports Med Phys Fitness. 1994 Jun;34(2):161-8.