Athletes May Be Experiencing Placebo Effect
More athletes are taking human growth hormone (HGH) with no scientific evidence to support its efficacy in improving performance. In a small Australian study involving 64 adult recreational athletes, some subjects were given HGH while others received a placebo. The study was randomized and double-blind. The researchers found that participants who believed they were taking growth hormone felt that their performance was improving—and actually did experience improvement—even when they were taking a placebo. All subjects in the study experienced a small performance boost, typically between 1% and 2%.
“Among those who wrongly thought that they received growth hormone, the performance enhancement was between 3% and 5%,” Dr. Kenneth Ho from the Garvan Institute of Medical Research in Sydney, Australia, told Reuters News. “This phenomenon was far greater in men than in women.”
The study results were announced at the Endocrine Society’s annual meeting in San Francisco in June 2008.
For the latest research, statistics, sample classes, and more, "Like" IDEA on Facebook here.
© 2008 by IDEA Health & Fitness Inc. All rights reserved. Reproduction without permission is strictly prohibited.
|Extreme Interval Training
In this course you'll learn goal-focused intervals and over 50 dynamic exercises and drills to create extensive and intensive training formats.
|Cut to the Core
This is a raw, unedited video filmed live at the 2009 IDEA World Fitness Convention™. Cut to the Core is packed full of core-focused exercises that aim to improve the way you look, feel and live.
|September 2011 IDEA Fitness Journal Quiz 4: Plyometric Training
This continuing education quiz is an in-depth look at plyometric training. Plyometric exercises—jumping, bounding, hopping, arm pushing, and catching and throwing weighted objects such as machine balls—are movements that involve rapid eccentric and concentric muscle actions.