MELBOURNE, Nov. 5 (Xinhua) -- Lacking a common protein may affect how muscles respond to testosterone, potentially affecting athletic performance and age-related muscle loss, according to a new study led by an Australian research institute.
The research has uncovered a surprising link between ACTN3, the gene for speed, and the body's response to testosterone, the hormone that helps maintain muscle mass, according to a statement released Wednesday by Australia's Murdoch Children's Research Institute (MCRI).
