Final answer:
The main reasons for female athlete triad are low energy availability, menstrual dysfunction, and low bone density. This triad of conditions can have serious consequences for female athletes, including increased risk of bone fractures, hormonal imbalances, and fertility issues.
Step-by-step explanation:
The main reasons for female athlete triad are low energy availability, menstrual dysfunction, and low bone density. When energy availability is low, females shift energy away from reproduction and toward their own survival. On the other hand, when energy availability is high, females cannot both produce viable offspring and maintain their own survival. This triad of conditions can have serious consequences for female athletes, including increased risk of bone fractures, hormonal imbalances, and fertility issues.