PMID- 1844402
OWN - NLM
STAT- MEDLINE
DCOM- 19930513
LR  - 20191028
IS  - 1050-1606 (Print)
IS  - 1050-1606 (Linking)
VI  - 1
IP  - 1
DP  - 1991 Mar
TI  - Muscle glycogen loading with a liquid carbohydrate supplement.
PG  - 52-60
AB  - This study compared two high carbohydrate (CHO) diets in 14 male runners for 
      effects on muscle glycogen deposition, endurance, and sensations of 
      gastrointestinal discomfort. Muscle glycogen was measured in the vastus lateralis 
      at rest and run time to exhaustion at 75% VO2max was measured following 3-1/2 
      days on a 50% CHO diet. After 14 days the subjects consumed a 20% CHO diet and 
      continued training to reduce glycogen. During the next 3-1/2 days, subjects ran 
      less and consumed a 90% CHO diet emphasizing pasta and rice (Pasta, n = 7) or 
      lesser amounts of pasta and rice supplemented by a maltodextrin beverage 
      (Supplement, n = 7). Glycogen was again measured, followed by a second run to 
      exhaustion. Compared to the 50% CHO diet, Pasta increased muscle glycogen by 27.1 
      +/- 12.2 mmoles/kg muscle (M +/- SE; P < 0.05) and run time by 15.7 +/- 5.9 min; 
      Supplement increased glycogen by 43.2 +/- 13.5 mmoles/kg (P < 0.05) and run time 
      by 29.0 +/- 7.4 min (P < 0.05). Total glycogen concentrations and run times were 
      not significantly different for Pasta versus Supplement. Subjects reported less 
      gastrointestinal discomfort and greater overall preference for Supplement than 
      for Pasta. Thus, glycogen loading can be accomplished at least as effectively and 
      more comfortably by substituting a maltodextrin drink for some of the pasta and 
      rice in a glycogen loading diet.
FAU - Lamb, D R
AU  - Lamb DR
AD  - School of HPER, Ohio State University, Columbus 43210.
FAU - Snyder, A C
AU  - Snyder AC
FAU - Baur, T S
AU  - Baur TS
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 (Dietary Carbohydrates)
RN  - 0 (Polysaccharides)
RN  - 7CVR7L4A2D (maltodextrin)
RN  - 9005-79-2 (Glycogen)
SB  - IM
MH  - Adult
MH  - *Beverages
MH  - Consumer Behavior
MH  - Dietary Carbohydrates/*administration & dosage
MH  - Gastrointestinal Diseases/*prevention & control
MH  - Glycogen/*metabolism
MH  - Humans
MH  - Male
MH  - Muscles/*metabolism
MH  - Physical Endurance/physiology
MH  - Polysaccharides/administration & dosage
MH  - Running/*physiology
EDAT- 1991/03/01 00:00
MHDA- 1991/03/01 00:01
CRDT- 1991/03/01 00:00
PHST- 1991/03/01 00:00 [pubmed]
PHST- 1991/03/01 00:01 [medline]
PHST- 1991/03/01 00:00 [entrez]
AID - 10.1123/ijsn.1.1.52 [doi]
PST - ppublish
SO  - Int J Sport Nutr. 1991 Mar;1(1):52-60. doi: 10.1123/ijsn.1.1.52.