Corpus ID: 83820649

Oral presence of carbohydrate and caffeine: independent and combined effects on endurance performance

  title={Oral presence of carbohydrate and caffeine: independent and combined effects on endurance performance},
  author={Katherine Theresa Prumm},
14 Chapter One: Introduction 16 1.1. Aim of the Thesis 20 1.2. Study Aims 20 1.3. Hypothesis 20 1.4. Significance of the Study 20 Chapter Two: Literature Review 22 2. 


Caffeine, cycling performance, and exogenous CHO oxidation: a dose-response study.
Low and moderate doses of caffeine have failed to improve endurance performance in fed, trained subjects and failed to significantly alter maximal exogenous CHO oxidation. Expand
Influence of caffeine and carbohydrate feedings on endurance performance.
Data demonstrate an enhanced rate of lipid catabolism and work production following the ingestion of caffeine, and fat oxidation was elevated 31% and appeared to provide the substrate needed for the increased work production during this period of exercise. Expand
Effect of carbohydrate ingestion and ambient temperature on muscle fatigue development in endurance-trained male cyclists.
Cyclists tended to self-select an aggressive pacing strategy (initial high intensity) in the heat during a 16.1-km cycling time trial, and carbohydrate ingestion and environmental heat on the development of fatigue and the distribution of power output were determined. Expand
Influence of caffeine on perception of effort, metabolism and exercise performance following a high-fat meal
Perception of effort was reduced during exercise after caffeine ingestion and this may be attributed to the direct stimulatory effect of caffeine on the central nervous system, however, this caffeine-induced reduction in effort perception did not improve exercise performance. Expand
The effect of different dosages of caffeine on endurance performance time.
It is concluded that caffeine is an ergogenic aid that stimulates endurance performance and a dose-response relation between caffeine and endurance time was not found for the dose-range investigated. Expand
The effects of caffeine ingestion on time trial cycling performance.
Performance was improved with the use of a caffeine supplement and blood lactate levels were significantly higher at the end of the trials than either at rest or postingestion, but there were no differences between the three trial groups. Expand
Enhancement of 2000-m rowing performance after caffeine ingestion.
Ingestion of 6 or 9 mg x kg(-1) of caffeine produces a worthwhile enhancement of short-term endurance performance in a controlled laboratory setting. Expand
Effects of timing of pre-exercise ingestion of carbohydrate on subsequent metabolism and cycling performance
Investigating the metabolic and performance responses to the ingestion of carbohydrate at differing times before exercise resulted in differences in plasma glucose /insulin responses which disappeared within 10 min of exercise and which had no effect on performance. Expand
Improved cycling time-trial performance after ingestion of a caffeine energy drink.
It is demonstrated that consuming a commercially available energy drink before exercise can improve endurance performance and that this improvement might be in part the result of increased effort without a concomitant increase in perceived exertion. Expand
The effect of carbohydrate gels on gastrointestinal tolerance during a 16-km run.
Despite high CHO gel intake, and regardless of the blend (GLU vs. GLU+FRC), average scores for GI symptoms were at the low end of the scale, indicating predominantly good tolerance during a 16-km run, Nevertheless, some runners experienced serious problems, and individualized feeding strategies might be required. Expand