IGF-I was the accommodated factor of GH.IGF-I was littleaffected by such factors as training ,age and sex, but it was much affected by ectogenesis GH.

研究表明,IGF-I是生长生长作用调节子,IGF-I运动训练、年龄、性别等影响很小,但对外源性生长有很高敏感性。