Question

explain why a marathon runner would be unlikely to take growth hormone or anabolic steroid?

Answer 1

The marathon is a long-distance race.In running,Marathon runners need to increase oxygen delivery. Growth hormone and anabolic steroids increase muscle mass, which adds strength but not endurance.

GH had become widely known in competitive sport as a “doping agent” often used in combination with testosterone or other androgenic anabolic steroids. Due to its anabolic and lipolytic actions,there has been high expectation that GH enhances physical performance . In fit people, GH in doses does not affect muscle strength or aerobic capacity in otherhands,it improves anaerobic capacity. This suggests that GH is unlikely to benefit power or endurance in sports but likely to benefit sprint events.