Blood turns red when we start bleeding because the chemical composition of our blood changes when it reaches the air. This is known as oxidation, and no, it is probably not okay if your blood doesn't turn red once it reaches the outside of your body.
Since someone would be performing wind sprint activities, it is guaranteed when performing any activity is to get better overtime so I would say to "work above your target heart rate"
Answer:
it may improve the neural efficiency pls mark brainliest if correct Ty!