High g-forces experienced by athletes like Formula 1 drivers cause significant physiological stress, mobilizing muscles to counteract the forces.

“if you just P pushing really high g-forces uh in One Direction then it would maybe not be as even if it's a prolonged one the reason for that is because I think that the gForce is obviously you're trying to counteract that so you're mobilizing every bit of muscles that are in your body order to to to to to stay exactly where you need to stay and to be but there's a slight difference which maybe you're about to get to so apologize if you are there's got to be also a part of that heart rate that is coming from the compromised Venus return to the heart due to either the Vol Salva or the actual impeding of the inferior vnea right”