(25 Mins 40 Secs)

Summary Points: Growth hormone increased lean body mass but not muscle in a study with recreational athletes. Growth hormone supplementation did not improve physical performance. Doping with growth hormone can be detected by particular proteins in the blood, a study found.

Presenters:

• Marc R. Blackman, MD, Chief of the Endocrine Section, Laboratory of Clinical Investigation, National Institutes of Health.
• Dr. Ken Ho, Garvan Institute of Medical Research, Sydney, Australia.
• Dr. Anne Nelson, Garvan Institute of Medical Research, Sydney, Australia