If they are complaing about chest pain...
Answer: heat stroke
Explanation: I'm thinking that's the correct answer. Because that's the only way you can pass out if your running.
Answer:
the center of gravity will shift
Explanation:
Every single body and thus the athletes themselves, is made up of individual components each of which has its own weight. ... So if the same body is to take a different shape, the position of the center of gravity will shift. An athlete that bends his/her legs will lower his/her center of gravity position.