PMID- 10997956
OWN - NLM
STAT- MEDLINE
DCOM- 20001107
LR  - 20191104
IS  - 1526-484X (Print)
IS  - 1526-484X (Linking)
VI  - 10
IP  - 3
DP  - 2000 Sep
TI  - Carbohydrate supplementation attenuates muscle glycogen loss during acute bouts 
      of resistance exercise.
PG  - 326-39
AB  - The effects of carbohydrate (CHO) supplementation on muscle glycogen and 
      resistance exercise performance were examined with eight highly resistance 
      trained males (mean +/- SEM, age: 24.3 +/- 1.1 years, height: 171.9 +/- 2.0 cm, 
      body mass: 85.7 +/- 3.5 kg; experience 9.9 +/- 2.0 years). Subjects participated 
      in a randomized, double blind protocol with testing sessions separated by 7 days. 
      Testing consisted of an initial isokinetic leg exercise before and after an 
      isotonic resistance exercise (IRT) session consisting of 3 leg exercises lasting 
      approximately 39 min. Subjects consumed a CHO (1.0 g CHO.kg body mass(-1)) or 
      placebo treatment (PLC), prior to and every 10-min (0.5 g CHO.kg body mass(-1)) 
      during the IRT. Muscle tissue was obtained from the m vastus lateralis after a 
      supine rest (REST) immediately after the initial isokinetic test (POST-ISO) and 
      immediately after the IRT (POST-IRT). The CHO treatment elicited significantly 
      less muscle glycogen degradation from the POST-ISO to POST-IRT (126.9 +/- 6.5 to 
      109.7 +/- 7.1 mmol.kg wet weight(-1)) compared to PLC (121.4 +/- 8.1 to 88.3 +/- 
      6. 0 mmol.kg wet weight(-1)). There were no differences in isokinetic performance 
      between the treatments. The results of this investigation indicate that the 
      consumption of a CHO beverage can attenuate the decrease in muscle glycogen 
      associated with isotonic resistance exercise but does not enhance the performance 
      of isokinetic leg exercise.
FAU - Haff, G G
AU  - Haff GG
AD  - Exercise Physiology Laboratory, Appalachian State University, Boone, NC 28608, 
      USA.
FAU - Koch, A J
AU  - Koch AJ
FAU - Potteiger, J A
AU  - Potteiger JA
FAU - Kuphal, K E
AU  - Kuphal KE
FAU - Magee, L M
AU  - Magee LM
FAU - Green, S B
AU  - Green SB
FAU - Jakicic, J J
AU  - Jakicic JJ
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 (Blood Glucose)
RN  - 0 (Dietary Carbohydrates)
RN  - 0 (Fatty Acids, Nonesterified)
RN  - 33X04XA5AT (Lactic Acid)
RN  - 9005-79-2 (Glycogen)
SB  - IM
MH  - Adult
MH  - Blood Glucose/metabolism
MH  - Cross-Over Studies
MH  - Dietary Carbohydrates/*pharmacology
MH  - Double-Blind Method
MH  - Exercise/*physiology
MH  - Fatty Acids, Nonesterified/metabolism
MH  - Glycogen/*metabolism
MH  - Humans
MH  - Lactic Acid/metabolism
MH  - Male
MH  - Muscle, Skeletal/*drug effects/metabolism
EDAT- 2000/09/21 11:00
MHDA- 2001/02/28 10:01
CRDT- 2000/09/21 11:00
PHST- 2000/09/21 11:00 [pubmed]
PHST- 2001/02/28 10:01 [medline]
PHST- 2000/09/21 11:00 [entrez]
AID - 10.1123/ijsnem.10.3.326 [doi]
PST - ppublish
SO  - Int J Sport Nutr Exerc Metab. 2000 Sep;10(3):326-39. doi: 
      10.1123/ijsnem.10.3.326.