Long-term endurance training alters the hypothalamic-pituitary axes for gonadotropins and growth hormone

AD Rogol, JY Weltman, WS Evans, JD Veldhuis… - … and metabolism clinics …, 1992 - Elsevier
This article reviews some of the relevant epidemiologic and hormonal data relating exercise
to reproductive dysfunction, explores some of the possible mechanisms, and describes a
recent prospective, longitudinal study in which eumenorrheic, relatively sedentary women
were followed and tested periodically over 1 year of graded endurance training. All
remained eumenorrheic, and there were only minimal changes in the pulsatile pattern of
luteinizing hormone release and in the duration of the follicular and luteal phases of their …