Research Article
Jafar Ali Ghaderi
Abstract
The world anti-doping organization removed caffeine from the banned list of substances in 2004; yet, research shows over recent years caffeine has become one of the most widely used ergogenic aids by athletes. Caffeine is a substance that is found naturally in many plants and is often found in many of the drinks and foods we consume. Caffeine is often administered as a liquid or in a capsule, but new research has shown that caffeine gum has a faster absorption rate and a higher relative bioavailability. The purpose of this study is to determine the Effect of caffeine gum and capsule ingestion on blood lactate and glucose during mid-endurance running. Fifteen well-trained male runners completed a double-blind, placebo controlled experiment. The runners (mean±SD] weight, height, age, and percentage body fat were 64.7±4.91 kg, 174.5±2.73 cm, 21.7±4.76 years, and 13.7±5.08 %, respectively. Chewing gum and capsule (5 mg.kg-1 of caffeine] or a placebo was administered at three time points (Thirty-five minutes pre-exercise, 5 minutes pre-exercise, and immediately following exercise]. The participants were instructed to chew caffeine gum for five minutes and swallow caffeine capsule. Participants raced 1500-m distance. Blood glucose and lactate were measured via a finger prick in any three stages, 5 minutes pre-1500-m running, and immediately following 1500-m running. The rest Interval between any measurement stages was one week. The results indicated no significantly different between that blood glucose (p