תזונה ותוספים Effects of carbohydrate and caffeine ingestion on performance during a rugby union si

[Mike Bikov]

J Sports Sci. 2010 May 31:1-10. [Epub ahead of print]
Effects of carbohydrate and caffeine ingestion on performance during a rugby union simulation protocol.

Roberts SP, Stokes KA, Trewartha G, Doyle J, Hogben P, Thompson D.

Sport and Exercise Science Research Group, School for Health, University of Bath, Bath, UK.
Abstract

In this study, we investigated the effect of ingesting carbohydrate alone or with caffeine on performance of a rugby union-specific shuttle running protocol. On three occasions, at least one week apart in a counterbalanced trial order, eight male rugby union forwards ingested either placebo or carbohydrate (1.2 g . kg(-1) body mass . h(-1)) before and during a rugby union-specific protocol, with pre-exercise caffeine ingestion (4 mg . kg(-1)) before one of the carbohydrate trials (carbohydrate + caffeine). The intermittent exercise protocol included walking, jogging, and cruising at pre-determined intensities, simulated contact events, a sustained high-intensity test of speed and agility (Performance Test), and a 15-m sprint. Ratings of perceived exertion (RPE) were recorded every 5 min and a motor skills test was performed after each 21-min block. Performance Test times were not significantly different between trials but the likelihood of 2% improvements for carbohydrate + caffeine over placebo and carbohydrate were 98% and 44%, respectively. For carbohydrate + caffeine, 15-m sprints were faster than for placebo (P=0.05) and the motor skills test was performed faster in the carbohydrate + caffeine trial than the carbohydrate and placebo trials (P < 0.05), while RPE was lower in the carbohydrate + caffeine trial than the carbohydrate and placebo trials (P < 0.05). The results indicate a likely benefit to rugby performance following co-ingestion of carbohydrate and caffeine.​

😈

 

[EMZ]

אווווו...איפה ילדי הAD? 😃

 

[Rhastago]

אז קפאין ופחמימה משפר יכולת יותר טוב מקפאין לבד?

נו טוב.

 

[Mike Bikov]

היה עוד מחקר לפני שנה וקצת שמראה שקפאין בהעמסת פחמימות שיפר את ספיגת הגליקוגן לשרירים. (רק ל 4 שעות אבל עדיין משהו)

 

[Rhastago]

זה פורסם פה?
כי לא מצאתי את זה בחיפוש תחת CAFFEINE..

אם תוכל להפנות אותי למחקר הרלוונטי, אני אשמח לקרוא וללמוד