Essay On Caffeine

1129 Words5 Pages
Caffeine is a widely used substance that is known to provide wakefulness and allow for better concentration in the workspace or classroom. SYMPTOMS OF INGESTING CAFFEINE

Caffeine is absorbed within the gastrointestinal tract and within 30 to 60 minutes’ maximum levels of caffeine are in your blood stream and symptoms can last for up to 12 hours (Thein, L. A., 1995). Since caffeine increases your metabolic rate and it also increases oxygen consummation it can increase heat production within your body during exercise because your body is exploiting more work causing more heat to be emitted (Cureton, K. J., 2007). Caffeine is also known to increase sweat and urine production, which in return can wave red flags to scientists, coaches and even
…show more content…
These runners completed four randomized, double blind, random tests. The seven volunteers for this study consisted of six men and one woman, they were between the ages of 19 to 38 years old, weighing between 56 to 83 kg. Before testing began, all subjects completed a VO2 max test on a treadmill or a bike. After resting for 30 minutes, the subjects exercised for 10 to 15 minutes at 85% of their VO2 max, that was given from their VO2 max results. Once the baseline testing was complete they moved on to the actual trial and testing. Each subject showed up to the lab four times throughout the time of the experiment. Each trial was completed at the same time of the day, separated by a one week break to allow for suitable rest and recovery (Graham, T. E., 1995). During this break, the subjects were allowed to continue with their normal training outside of the experiment, but they were also asked to refrain from caffeine use 48 hours before the start of each trial.
Before each trial a urine sample, a resting blood sample were collected along with the implant of a saline drip in the arm. Each athlete then ingested either a placebo pill, which would have no effect on their results, or a caffeine pill one hour before the trial. The caffeine pill contained 9 mg/kg of their body weight. An hour after the caffeine and placebo pills were taken scientists retrieved another blood

More about Essay On Caffeine

Get Access