PMID- 18562774
OWN - NLM
STAT- MEDLINE
DCOM- 20080922
LR  - 20191110
IS  - 1526-484X (Print)
IS  - 1526-484X (Linking)
VI  - 18
IP  - 3
DP  - 2008 Jun
TI  - Hormonal response to carbohydrate supplementation at rest and after resistance 
      exercise.
PG  - 260-80
AB  - This investigation examined the anabolic-hormone response to carbohydrate (CHO) 
      supplementation at rest and after resistance exercise. Nine recreationally 
      trained men randomly underwent 4 testing conditions: rest with placebo (RPL), 
      rest with CHO (RCHO), resistance exercise with placebo (EPL), and resistance 
      exercise with CHO (ECHO). The resistance-exercise protocol was four sets of Smith 
      machine squats with a 10-repetition-maximum load, with 90-s rests between sets. 
      Participants then consumed either a placebo or CHO (24% CHO, 1.5 g/kg) drink. 
      Blood was taken before exercise (Pre), immediately after testing (Post), and then 
      15 (15P), 30 (30P), and 60 (60P) min after drink ingestion. Blood was analyzed 
      for cortisol, glucose, insulin, and total testosterone (TTST). Cortisol did not 
      change significantly in any condition. Glucose concentrations increased 
      significantly from Pre to 15P and 30P during RCHO and Pre to 15P, 30P, and 60P in 
      ECHO (p <or= .05). Insulin concentrations increased significantly from Pre to 
      15P, 30P, and 60P in the RCHO and ECHO conditions (p <or= .05). There were no 
      significant changes in TTST concentrations during RPL or RCHO. Both EPL and ECHO 
      demonstrated a significant elevation in TTST concentrations from Pre to Post (p 
      <or= .05). During ECHO, TTST concentrations at 60P were significantly lower than 
      Pre levels (p <or= .05), but there were no significant treatment differences in 
      TTST concentrations at any time point during the EPL and ECHO conditions. 
      Ingesting CHO after resistance exercise resulted in decreased TTST concentrations 
      during recovery, although the mechanism is unclear.
FAU - Schumm, Sean R
AU  - Schumm SR
AD  - Dept. of Health, Leisure, and Exercise Science, Appalachian State University, 
      Boone, NC, USA.
FAU - Triplett, N Travis
AU  - Triplett NT
FAU - McBride, Jeffrey M
AU  - McBride JM
FAU - Dumke, Charles L
AU  - Dumke CL
LA  - eng
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 (Insulin)
RN  - 3XMK78S47O (Testosterone)
RN  - WI4X0X7BPJ (Hydrocortisone)
SB  - IM
MH  - Adolescent
MH  - Adult
MH  - Area Under Curve
MH  - Blood Glucose/analysis/*metabolism
MH  - Cross-Over Studies
MH  - Dietary Carbohydrates/*administration & dosage
MH  - Dietary Supplements
MH  - Double-Blind Method
MH  - Humans
MH  - Hydrocortisone/blood
MH  - Insulin/*blood
MH  - Male
MH  - Middle Aged
MH  - Rest/*physiology
MH  - Testosterone/blood
MH  - Weight Lifting/*physiology
EDAT- 2008/06/20 09:00
MHDA- 2008/09/23 09:00
CRDT- 2008/06/20 09:00
PHST- 2008/06/20 09:00 [pubmed]
PHST- 2008/09/23 09:00 [medline]
PHST- 2008/06/20 09:00 [entrez]
AID - 10.1123/ijsnem.18.3.260 [doi]
PST - ppublish
SO  - Int J Sport Nutr Exerc Metab. 2008 Jun;18(3):260-80. doi: 
      10.1123/ijsnem.18.3.260.