Optimize how much coffee you drink!

coffee beans

More frequently (especially after long flights) I find myself heading to the break room for a pick-me-up, but more and more a single cup of Joe doesn’t get it done anymore. There are moments I’m struggling to keep my eyes open after 3 or 4 full cups of the caffeine goodness coming out of the coffee machine. Though my problem’s likely to be desensitization, research does indicate there is an optimal dose of caffeine.

Researchers from the University of Limburg in the Netherlands published findings on how different doses of caffeine affect athletic endurance. By administering 9 different doses of caffeine to well-trained cyclists (VO2max 65.1 + 2.6 ml · kg-1 · min-1), they analyzed how dose affects performance.

One hour after capsule ingestion, subjects cycled until exhaustion at 80 % Wmax on an electromagnetically braked cycle ergometer. Blood samples were taken before, during and after the exercise test. Before and after the test a urine sample was obtained.

caffeine structure

caffeine structure

Unsurprisingly they note that taking caffeine significantly improves endurance in at all dose levels. However, it doesn’t seem to matter how much caffeine is taken.

 No differences were found in endurance performance between the three caffeine dosages which indicates that no dose-response relation of caffeine and endurance performance was found. An increased free fatty acid and glycerol concentration was found after caffeine consumption compared with placebo. It is concluded that caffeine is an ergogenic aid that stimulates endurance performance.

OLYMPUS DIGITAL CAMERA

Notably only the lowest administered dose of caffeine tested below the legal doping limit set by the International Olympic Committee, advantageous since research indicates the lowest dose of 5 mg per kg body weight is equally effective at enhancing endurance.

Source

Supeding

Pastry Chef (https://butterhub.org), software engineer (http://jamesding.org), and fitness enthusiast.

You may also like...

Leave a Reply

Read more:
Hexagonal water debunked! What Chemistry Has to Say

I've seen these hexagonal water stations hanging around near Asian supermarkets. They claim to filter or process water into "hexagonal"...

Debate! Does cold weather make you sick?

This is a highly contested question among scientists and physicians. One one hand, its hard to deny that at least...

lift-in-space-430x300
Think it’s hard making gains? Try lifting in space

CSA astronaut and ISS commander Chris Hadfield demonstrates how it is astronauts lift in space. But he notes they're not...

Figure-3-1024x608
Do computers make physicians obsolete?

As someone employed in medical research, I'm a little bothered when my friends self-diagnose using webMD or self-medicate rather than...

Close