In Russia, Korea and China, deer antler velvet is widely used by athletes to enhance performance. In the United States, more and more athletes are looking to deer antler velvet as a training aid, a promoter of recovery after physical activity and injury, and possibly an injury preventative. Deer velvet could improve athletic performance in many ways, for example by assisting strength and endurance, by supporting the oxygen-carrying capacity of the blood, by facilitating minor tissue damage, and by boosting the immune system.
"I was diagnosed with Muscular Dystrophy at the age of 3. For those of you who do not know Muscular Dystrophy is a disease that essentially means muscles with bad nutrition. My results with this product have been phenomenal. I've definitely noticed an increase in energy, definitely strength. I went from 12 reps to 43 reps in just five weeks. There is something special about this product."*
I know of no scientific evidence to support any of the marketing claims made for these supplements. I discussed your question with Tieraona Low Dog, M.D., an internationally recognized expert in the fields of integrative medicine, dietary supplements and women’s health, and an authority on botanical medicine. She explains that IGF-1 in the velvet promotes rapid growth of the antler. Dr. Low Dog notes that the two studies examining the effects of deer antler velvet supplements taken by athletes have yielded conflicting results. One showed some improvements in endurance and knee strength in weightlifters, but the other found no differences in rowers after 10 weeks of supplementation.
A systemic review on human interventions makes note of a study conducted on patients of osteoarthritis (Edelman et al. 2000; cannot be located online) which found improvements in joint pain symptoms relative to baseline in the Velvet Antler group and not placebo, although a lack of information on blinding and randomization precludes results that can be drawn from this study.