Physiological and performance effects of carbohydrate gels consumed prior to the extra-time period of prolonged simulated soccer match-play

Abstract

18Objectives: The physiological and performance effects of carbohydrate-electrolyte gels consumed 19 before the 30 min extra-time period of prolonged soccer-specific exercise were investigated. 20Design: Randomised, double-blind, crossover.

The influence of a 12% carbohydrate-electrolyte beverage on self-paced soccer-specific exercise performance

“…However, in the absence of cerebral glucose measurement, these proposed mechanisms should be interpreted with caution. Nevertheless, this study supports findings of impaired physical, technical and cognitive performance in the latter stages of soccer-specific exercise and the enhancement of selected physical and technical performance markers following carbohydrate supplementation 1,6,20 .…”

“…Improved sprinting (speed: +2.7% vs. Wat), soccer dribbling (speed: >+3% vs. Wat and PL) and selfpaced exercise (mean number of self-paced accelerations >1.5 m•s -2 : >+25% vs. Wat and PL) performance occurred throughout CHO; reflecting previous observations when carbohydrate was consumed in beverages 6 , gels 20 , or mouth rinses 12 . Despite improved high-intensity performance in CHO, no between-trial effects were observed for RPE.…”

Acute effect of low and moderate glycemic index drinks on plasma glucose level in professional football players during prolonged intermittent exercise

“…A similar, temporary decline in plasma glucose level and even hypoglycaemia has been observed in football players during the first half-time in studies by other authors (Russell et al 2011;Russell et al 2010;Kingsley et al 2014). This suggests that liver glycogen is sufficient to maintain plasma glucose level during a football game and even during the overtime period (Harper et al 2016). This is also one of the reasons why consumption of carbohydrate-rich drinks is not advised for team sport athletes during game/exercise, to maintain endogenous regulation of glycogen homeostasis and produce high performance of athletes even during the final stages of a prolonged exercise.…”

Prevalence, Adverse Events, and Factors Associated with Dietary Supplement and Nutritional Supplement Use by US Navy and Marine Corps Personnel

“…[52][53][54] Carbohydrate gels consumed before or during physical activity have been shown to improve some aspects of performance. 55,56 Like sport drinks, post-exercise consumption (within about 1 hour) of bars or gels will lead to greater repletion of muscle glycogen because post-exercise glucose transport and the activity of glycogen synthase (the ratelimiting enzyme for glycogen resynthesis) are considerably augmented. 57,58 Adverse Events…”