SPEAKER_04 50:24–53:33
Okay. All right. So let's use the golf swing because I think it's a little bit easier to see. So a couple of simple rules. We have to have an external rotation space to superimpose internal rotation on top of it because they happen at the same time. They are not separate entities. They are superimposed. So external rotation creates somewhere to go. Internal rotation gets us there. So that's how I want you to look at this. And again, because we've got two ends of the golf swing that are somewhat similar, it's very, very easy to see. Now, so we have an extra rotation position that is represented in the pelvis that we want to talk about. And so what this is, is this would be the counter-neutated representation of the sacrum against the ilium. That would be our representation of what the ER looks like. And so I actually had my pelvis handy, so I'm going to show you. Okay, so it's going to be that relationship there. So I have the counter-neutation of the sacrum. So it's moving back relative to the ilium or the ilium is moving forward rather on that. So I have two representations. I can use the ilium to push in that direction counter-neutation or I can move the sacrum back. So when we're talking about the backswing for a golfer, what that actually is, is a representation of early propulsion. So we're actually talking about how we take a step forward. So an early propulsive representation is ER, it's counter-neutation, but it's the sacrum moving back relative to the ilium. So what's creating this? So it's actually a delay strategy. So what happens is, if we talked about the left hip in the back swing, this side is actually going ahead of the right hip. So to create the delay on the backside hip, if we're talking about a right-handed golfer, we're talking about the right hip. So under this circumstance, to create the delay there, what I'm actually doing is creating a yielding action via the connective tissues. So I'm already in an ER representation, but to create the delay, so this side has to go slower than this side, otherwise there would be no turn. So to create a turn, both sides are in ER. One side is overcoming, which creates the turn away from this side. So on the left side, I have an overcoming action of those connective tissues, which moves that hip forward. This hip creates a delay and it moves back. That's what creates a turn.
golf swing mechanicsexternal rotationinternal rotationconnective tissue behaviorpelvic mobility