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- Title
Recovery of Endurance Running Capacity: Effect of Carbohydrate-Protein Mixtures.
- Authors
Betts, James A.; Stevenson, Emma; Williams, Clyde; Sheppard, Catrin; Grey, Edwin; Griffin, Joe
- Abstract
Including protein in a carbohydrate solution may accelerate both the rate of glycogen storage and the restoration of exercise capacity following prolonged activity. Two studies were undertaken with nine active men in study A and seven in study B. All participants performed 2 trials, each involving a 90 min run at 70% VO2max followed by a 4 h recovery. During recovery, either a 9.3% carbohydrate solution (CHO) or the same solution plus 1.5% protein (CHO-PRO) was ingested every 30 min in volumes providing either 1.2 g CHO · kg-1 · h-1 (study A) or 0.8 g CHO · kg-1 · h-1 (study B). Exercise capacity was then assessed by run time to exhaustion at 85% VO2max. Ingestion of CHO-PRO elicited greater insulinemic responses than CHO (P ≤ 0.05) but with no differences in run times to exhaustion. Within the context of this experimental design, CHO and CHO-PRO restored running capacity with equal effect.
- Subjects
DIETARY carbohydrates; EXERCISE; RUNNING; DIETARY proteins; GLYCOGEN; EXPERIMENTAL design; NUTRITION; METABOLISM; INGESTION
- Publication
International Journal of Sport Nutrition & Exercise Metabolism, 2005, Vol 15, Issue 6, p590
- ISSN
1526-484X
- Publication type
Article
- DOI
10.1123/ijsnem.15.6.590