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The Bill Hartman Podcast for The 16% - Season 17 - Number 8 Podcast
Bill:
Bill Hartman 0:00–0:12
Okay, it's very compressed, got a lot of concentration, not a lot of wiggle room, right? If I was to take that representation and mobilize it into IR, can you appreciate the fact that it would be emphasizing the current strategy?
joint mobilizationinternal rotationrepresentation
Bill Hartman 0:14–0:19
So I have a question regarding elongating bones using the late representation.
bone mechanicsrepresentationbiomechanics
Bill Hartman 0:19–0:20
Okay, one more time, sorry. Elongating bones using the late representation. Yeah. So a lot of times these bones proximal end twist to ER, distal end twist to IR and it gets screwed down. So eventually you want the differential to get in the back at IR approximately and ER distally. And when we use the late representation, that would be the opposite. And so I'm just wondering from like a, I guess, I don't know, practical or theoretical perspective. How does the late representation lengthen it while it's already too much of a differential?
bone mechanicsjoint rotationdifferential movementlate representationbone elongation
Bill Hartman 0:20–1:07
Elongating bones using the late representation. So a lot of times these bones have the proximal end twisting to external rotation, the distal end twisting to internal rotation, and it gets screwed down. Eventually you want the differential to get the proximal end in internal rotation and the distal end in external rotation. And when we use the late representation, that would be the opposite. So I'm just wondering from like a, I guess, I don't know, practical or theoretical perspective, how does the late representation lengthen it while it's already too much of a differential?
bone mechanicsrotation differentiallate representationbone elongationinternal/external rotation
Bill Hartman 1:07–1:15
Okay. So how much downward pressure would be in the compressed representation of a bone?
bone mechanicscompressed representationbiomechanics
Bill Hartman 1:16–1:17
A lot.
bone compressiondifferential movementearly representationlate representation
Bill Hartman 1:17–1:23
Okay. So all I gotta do is I gotta take the pressure off of it. There's two places where I can do that.
bone compressiondifferential rotationlate representation
SPEAKER_04 1:26–1:28
Approximately one distal one.
bone compressionpressure releasedistal positioning
Bill Hartman 1:28–1:38
No, no, no, no. Early or late. So that's the least amount of IR under both circumstances.
shoulder positioninternal rotationexternal rotation
SPEAKER_04 1:40–1:42
I'm going after early on the first try.
Bill Hartman 1:45–2:04
But there's a problem with that sometimes is I can't capture that position. So it's much easier for me to go to the late representation, which is the elongated decompressed representation, because it's still ER and it still has less IR on it.
joint movementexternal rotationinternal rotationbiomechanical representation
SPEAKER_04 2:08–2:24
Put your foot out in front of you, put your foot behind you, right? Those are ER representations. They have less IR on them. It's the left side going up on a wide ISA.
joint mechanicsinternal/external rotationlimb positioning
Bill Hartman 2:28–3:13
That's what you're shooting for. The ER to IR, let's use the femur as an example. It's always going to be an ER to IR under all circumstances. It's just a matter of degree of how much of each is represented when you twist it just to eliminate confusion. It's like when you pull on somebody's leg, can you appreciate the fact that you're in an ERD position and you do that, whether they're supine or whether they're prone? It's the same thing we're talking about with that with arm swing. It's like you're moving the limb into an ERD, less IRD representation to create the ERD position so I can capture eventually, if relative motion is a goal, the early propulsive representation.
femur motionER to IR mechanicslimb positioningrelative motionpropulsive representation
Bill Hartman 3:14–3:24
Okay. So there's like two types of things I might do manually. One, pulling on whatever in the other orientation. Pulling on whatever. I like that. OK. Yeah. Or two, try and push the proximal end into IR. OK. So think about this for a sec. To push down on the theme where you have to be over top of it, so to speak. Okay, and that's going to that's going to create a more IR representation most approximately so think about taking the neck from 120 degrees of of a straight plane representation to 90. Like just push down on it so so the neck would be this way and you push down and it's like that so if you're starting there if you're starting there okay and you try to push it into IR. You're going to be quite successful, number one, because it's already kind of getting pushed into that position. When you're going to mobilize into IR, you want to make sure that you do something that promotes the ER representation first. That make sense? Yeah. It may be as simple as just acquiring the position. So for instance, if I put you in a low oblique, And I put you in an ER position through the hips in the low oblique. The setup of the activity literally creates the starting conditions that I want to be able to mobilize your hip into an IR position. So I could take somebody that would be anteriorly oriented, I could put them in a right low oblique sit, immediately capture the ER representation. I've taken the pressure off, I have oriented them into ER, and then I can actually have them mobilize themselves into the IR representation to drive the IR towards the pelvis. Does that make sense?
joint mobilizationhip internal/external rotationpositioning for rehabilitationmanual therapy techniques
Bill Hartman 3:24–3:26
Pulling on whatever. I like that. OK.
Bill Hartman 3:26–3:33
Or two, try and push the proximal end into IR.
hip mobilizationinternal rotationexternal rotation
Bill Hartman 3:36–5:09
OK. So think about this for a moment. To push down on the theme where you have to be over top of it, so to speak. And that's going to create a more IR representation most approximately. So think about taking the neck from 120 degrees of a straight plane representation to 90. Like just push down on it, so the neck would be this way, and you push down and it's like that. So if you're starting there and you try to push it into IR, you're going to be quite successful, number one, because it's already kind of getting pushed into that position. When you're going to mobilize into IR, you want to make sure that you do something that promotes the ER representation first. That make sense? It may be as simple as just acquiring the position. So for instance, if I put you in a low oblique and I put you in an ER position through the hips in the low oblique, the setup of the activity literally creates the starting conditions that I want to be able to mobilize your hip into an IR position. So I could take somebody that would be anteriorly oriented, I could put them in a right low oblique sit, immediately capture the ER representation. I've taken the pressure off, I have oriented them into ER, and then I can actually have them mobilize themselves into the IR representation to drive the IR towards the pelvis. Does that make sense?
joint mobilizationinternal/external rotationpositioningstarting conditionsrepresentation
Bill Hartman 5:09–5:10
Yeah. Yeah.
Bill Hartman 5:11–5:12
Okay.
Bill Hartman 5:12–5:25
So as far as if there's like a pretty significant bony twist where it's starting to get pressed way down, you're going to spend some time on the ER elongation before trying to move them towards IR.
internal rotationexternal rotationjoint mobilization
Bill Hartman 5:26–6:26
Yes, because it's a compressed representation, right? And the concern that I have is that I don't want to take the fibers of the gluteus medius that go straight up from the trochanter and then take everything that's anterior. So all of those fibers would be concentrically oriented. Under that circumstance, there would be a downward compression on the femur that would bend the neck towards a 90-degree angle. That would be a representation where there's actually no movement in the hip joint itself. It's very compressed, with a lot of tension and not a lot of wiggle room. If I take that representation and mobilize it into internal rotation, it would be emphasizing the current strategy. The anterior gluteus medius would already be concentrically oriented, and I would push the trochanter into that same position, potentially doing nothing and gaining nothing. However, if I can recapture the external rotation representation, I now have an external rotation representation. When I mobilize it in that direction, I won't necessarily pick up the compensatory strategy and I will start to produce relative motion at the hip joint. The difference is the starting point of the mobilization. Do I want to start in a compensatory strategy and drive harder into it? Or do I want to start where I have greater relative motion? Then I can start to influence the synovial joint that I'm actually mobilizing because the first synovial joint I tried to mobilize didn't have any relative motion available. It was already in a compressed representation with no movement available.
hip joint mobilizationgluteus medius mechanicscompensatory strategiesjoint compressionexternal rotation representation
SPEAKER_08 6:27–6:27
Yeah.
Bill Hartman 6:27–7:32
Because the anterior glute medius would already be concentrically oriented. And I'm going to push the trochanter into that same position and potentially do nothing, gain nothing. However, if I can recapture the ERD representation, I now have an ERD representation. I mobilize it in that direction. I won't necessarily pick up the compensatory strategy and I will start to produce the relative motion at the hip joint. You see the difference? It's the representation of where you're starting that mobilization. It's like, do I want to start it in a compensatory strategy and drive harder into it? Or do I want to start where I have greater relative motion? And then I can start to influence the synovial joint that I'm actually mobilizing because the first synovial joint that was trying to mobilize didn't have any relative motion available to it. Like it was already in a compressed representation. There's no movement available.
hip joint mobilizationmuscle orientationcompensatory strategyrelative motion
Bill Hartman 7:33–7:39
So create space and then use the space to orient IR. And there you go.
hip mobilizationinternal rotation (IR)joint compressionrelative motion
Bill Hartman 7:39–7:54
Well, sorry, I knew what you meant. It's OK. And you're a paper and pen guy?
documentationclinical practice
SPEAKER_02 7:55–7:57
Oh, yeah.
Bill Hartman 7:57–8:00
OK. So here's this week's note card.
SPEAKER_03 8:03–8:52
Off topic, completely off topic. As you work with more and more people and over more time, you gather more and more information, and the program probably evolves more. How do you go about organizing? Because I'm a big fan of pen and paper and not good with technology at all. Apart from me trying to be a more well-organized person, is there something like a model I could use to categorize my information and add on to previous information? You know what I'm trying to describe?
information organizationprogram evolutiondocumentation systemsnote-taking methodsdata categorization
Bill Hartman 8:52–8:55
Are you trying to capture information, categorize it, and store it?
information managementorganizational systems
SPEAKER_02 8:56–8:57
Exactly, yeah.