|
|
| Author |
Message |
CRON4healthyfuture
Guest
|
 Posted: Mon Feb 13, 2006 4:02 am Post subject: Effects of carbohydrates vs. Essential Amino Acids during Exercise |
 |
|
This is an interesting study of the effects of different types of energy during exercise.
Carbohydrates or Essential Amino Acids seem to increase insulin. They also increase insulin quite a bit when combined, in fact, the researchers state that insulin was "still increasing" at their last measurement time in the group that did took carbohydrate and essential amino acids at the same time.
However, carbohydrates tended to decrease cortisol the most. This could be considered bad.......
On the other hand, essential amino acids tended to promote Growth Hormone more than carbohydrates. Like most endocrinological issues, this could "cut both ways".
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
Click Here to see Abstract
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
| Quote: |
"Effects of liquid carbohydrate/essential amino acid ingestion on acute hormonal response during a single bout of resistance exercise in untrained men
Methods
After a 4-h fast, 32 subjects performed a single bout of resistance exercise (60 min), during which they consumed a 6% carbohydrate (CHO) solution, a 6-g essential amino acid (EAA) mixture, a combined CHO+EAA supplement, or a placebo beverage. Blood samples were collected every 15 min throughout the exercise bout, immediately after exercise, and 15 and 30 min after exercise for analysis of total testosterone, cortisol, growth hormone, insulin, and glucose.
Results
No significant change in glucose or insulin was observed for placebo. CHO and CHO+EAA ingestion resulted in significantly (P < 0.001) increased glucose and insulin concentrations above baseline, whereas EAA resulted in significant postexercise increases (P < 0.05) in insulin only. Placebo exhibited a significant increase in cortisol within 30 min (P < 0.01), with a peak increase of 105% (P < 0.001) immediately after exercise, and cortisol remained 54% above baseline at 30 min after exercise (P < 0.05). Conversely, the treatment groups displayed no significant change in cortisol during the exercise bout, with CHO and CHO+EAA finishing 27% (P < 0.01) and 23% (P < 0.05), respectively, below baseline at 30 min after exercise. No between-group differences in exercise-induced growth hormone or testosterone concentrations after nutritive intervention were present.
|
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- |
|
| Back to top |
|
 |
|
|
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
|
|
|
Search
Log in
