Gröntvedt
2008-08-08, 20:41
"Essential amino acid and carbohydrate ingestion prior to resistance exercise does not enhance post-exercise muscle protein synthesis
We studied 22 young healthy subjects before, during, and for 2 hr following a bout of high-intensity leg resistance exercise. The Fasting control group (N=11) did not ingest nutrients and the EAA+CHO group (N=11) ingested a solution of EAA+CHO 1 hr prior to beginning the exercise bout.
We found that muscle FSR increased in the EAA+CHO group immediately following EAA+CHO ingestion (P<0.05), returned to basal values during exercise, and remained unchanged at 1 hr post-exercise. Muscle FSR decreased in the Fasting group during exercise and increased at 1 hr post-exercise (P<0.05). However, the 2 hr post-exercise FSR increased by ~50% in both groups with no differences between groups (P>0.05). Eukaryotic elongation factor 2 phosphorylation was reduced in both groups at 2 hr post-exercise (EAA+CHO: 39+/-7%; Fasting: 47+/-9%; P<0.05). We conclude that EAA+CHO ingestion prior to resistance exercise does not enhance post-exercise FSR as compared to exercise without nutrients"
Hur gjorde vi med pre-exercise drinken?
We studied 22 young healthy subjects before, during, and for 2 hr following a bout of high-intensity leg resistance exercise. The Fasting control group (N=11) did not ingest nutrients and the EAA+CHO group (N=11) ingested a solution of EAA+CHO 1 hr prior to beginning the exercise bout.
We found that muscle FSR increased in the EAA+CHO group immediately following EAA+CHO ingestion (P<0.05), returned to basal values during exercise, and remained unchanged at 1 hr post-exercise. Muscle FSR decreased in the Fasting group during exercise and increased at 1 hr post-exercise (P<0.05). However, the 2 hr post-exercise FSR increased by ~50% in both groups with no differences between groups (P>0.05). Eukaryotic elongation factor 2 phosphorylation was reduced in both groups at 2 hr post-exercise (EAA+CHO: 39+/-7%; Fasting: 47+/-9%; P<0.05). We conclude that EAA+CHO ingestion prior to resistance exercise does not enhance post-exercise FSR as compared to exercise without nutrients"
Hur gjorde vi med pre-exercise drinken?