Teams of scientists are researching the unique ways that elite sport affects the female body – how breasts alter the way you run, but the right sports bra could give you the edge; how the menstrual cycle could impact performance and what role period trackers could play; and why is there a higher risk of some injuries, and what can be done to avoid them?
There’s several paragraphs about ACL injuries that does discuss the hormonal effect of estrogen. The amount of relaxin produced by the corpus luteum is fairly minimal compared to the amount produced by the placenta though.