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Olav Aleksander Bu

👤 Person
734 total appearances

Appearances Over Time

Podcast Appearances

The Peter Attia Drive
#331 ‒ Optimizing endurance performance: metrics, nutrition, lactate, and more insights from elite performers | Olav Aleksander Bu (Pt. 2)

forces that are preventing the blood returning to the heart could make that high heart rate really a product of tiny tiny little ineffective beats yes that's also we've done some studies on that in high g-force athletes no actually in similar because it's quite interesting to see that what happens also with the muscles so when you do work you produce a certain amount of power obviously two there are forces involved and there is velocity involved

The Peter Attia Drive
#331 ‒ Optimizing endurance performance: metrics, nutrition, lactate, and more insights from elite performers | Olav Aleksander Bu (Pt. 2)

forces that are preventing the blood returning to the heart could make that high heart rate really a product of tiny tiny little ineffective beats yes that's also we've done some studies on that in high g-force athletes no actually in similar because it's quite interesting to see that what happens also with the muscles so when you do work you produce a certain amount of power obviously two there are forces involved and there is velocity involved

The Peter Attia Drive
#331 ‒ Optimizing endurance performance: metrics, nutrition, lactate, and more insights from elite performers | Olav Aleksander Bu (Pt. 2)

These forces require a certain amount of recruitment of muscle fibers, and these muscle fibers at a certain point will actually start to cause vasoconstrictions. So they actually start squeezing off the blood supply. They normally act also as a pump. They actually help pumping blood around in the body, promoting preloading.

The Peter Attia Drive
#331 ‒ Optimizing endurance performance: metrics, nutrition, lactate, and more insights from elite performers | Olav Aleksander Bu (Pt. 2)

These forces require a certain amount of recruitment of muscle fibers, and these muscle fibers at a certain point will actually start to cause vasoconstrictions. So they actually start squeezing off the blood supply. They normally act also as a pump. They actually help pumping blood around in the body, promoting preloading.

The Peter Attia Drive
#331 ‒ Optimizing endurance performance: metrics, nutrition, lactate, and more insights from elite performers | Olav Aleksander Bu (Pt. 2)

But the interesting thing is that we do see that where you also get in the area of anaerobic threshold is actually where you are starting to come to the point where you're squeezing off the blood flow as well in the muscles. And this happens around ballpark-ish. Obviously, there is a fairly large range, but ballpark-ish around 30% of your 1RM.

The Peter Attia Drive
#331 ‒ Optimizing endurance performance: metrics, nutrition, lactate, and more insights from elite performers | Olav Aleksander Bu (Pt. 2)

But the interesting thing is that we do see that where you also get in the area of anaerobic threshold is actually where you are starting to come to the point where you're squeezing off the blood flow as well in the muscles. And this happens around ballpark-ish. Obviously, there is a fairly large range, but ballpark-ish around 30% of your 1RM.

The Peter Attia Drive
#331 ‒ Optimizing endurance performance: metrics, nutrition, lactate, and more insights from elite performers | Olav Aleksander Bu (Pt. 2)

Yeah, for sustained efforts. For short efforts, you can get very, very close. But for sustained ones, yes, I would agree. But coming back to running versus the bike, which was, let's say, the place where it started. Normally, I would say that, yes, in running, you would at least at submaximal efforts have a higher view to max.

The Peter Attia Drive
#331 ‒ Optimizing endurance performance: metrics, nutrition, lactate, and more insights from elite performers | Olav Aleksander Bu (Pt. 2)

Yeah, for sustained efforts. For short efforts, you can get very, very close. But for sustained ones, yes, I would agree. But coming back to running versus the bike, which was, let's say, the place where it started. Normally, I would say that, yes, in running, you would at least at submaximal efforts have a higher view to max.

The Peter Attia Drive
#331 ‒ Optimizing endurance performance: metrics, nutrition, lactate, and more insights from elite performers | Olav Aleksander Bu (Pt. 2)

The only thing is that we see that in people that are, let's say, somewhat balanced trained, so they spend some time on the bike, they spend some time on running, then normally there are more muscles involved for a longer duration in cycling than it is in running.

The Peter Attia Drive
#331 ‒ Optimizing endurance performance: metrics, nutrition, lactate, and more insights from elite performers | Olav Aleksander Bu (Pt. 2)

The only thing is that we see that in people that are, let's say, somewhat balanced trained, so they spend some time on the bike, they spend some time on running, then normally there are more muscles involved for a longer duration in cycling than it is in running.

The Peter Attia Drive
#331 ‒ Optimizing endurance performance: metrics, nutrition, lactate, and more insights from elite performers | Olav Aleksander Bu (Pt. 2)

Actually, when I started working with them, then it was close to a significant difference between cycling and running and even more in swimming. Higher in swimming? No, lowest in swimming, actually. And that comes also back to one other thing. One thing is also when we talk about preloading and how this also affects it.

The Peter Attia Drive
#331 ‒ Optimizing endurance performance: metrics, nutrition, lactate, and more insights from elite performers | Olav Aleksander Bu (Pt. 2)

Actually, when I started working with them, then it was close to a significant difference between cycling and running and even more in swimming. Higher in swimming? No, lowest in swimming, actually. And that comes also back to one other thing. One thing is also when we talk about preloading and how this also affects it.

The Peter Attia Drive
#331 ‒ Optimizing endurance performance: metrics, nutrition, lactate, and more insights from elite performers | Olav Aleksander Bu (Pt. 2)

I actually were stupid enough to teach Christian and Gustav this a long time ago. And that is if they wanted to have a very high view to max, obviously, if you're trained, you will see this immediately on the breathing patterns.

The Peter Attia Drive
#331 ‒ Optimizing endurance performance: metrics, nutrition, lactate, and more insights from elite performers | Olav Aleksander Bu (Pt. 2)

I actually were stupid enough to teach Christian and Gustav this a long time ago. And that is if they wanted to have a very high view to max, obviously, if you're trained, you will see this immediately on the breathing patterns.

The Peter Attia Drive
#331 ‒ Optimizing endurance performance: metrics, nutrition, lactate, and more insights from elite performers | Olav Aleksander Bu (Pt. 2)

But what you can do to create an artificially high view to max is that you basically, when you come pretty close to your all out effort, if you try to restrict your breathing, let's say for a short, short time there, you will create a depth and this depth will actually boost the numbers even higher.

The Peter Attia Drive
#331 ‒ Optimizing endurance performance: metrics, nutrition, lactate, and more insights from elite performers | Olav Aleksander Bu (Pt. 2)

But what you can do to create an artificially high view to max is that you basically, when you come pretty close to your all out effort, if you try to restrict your breathing, let's say for a short, short time there, you will create a depth and this depth will actually boost the numbers even higher.

The Peter Attia Drive
#331 ‒ Optimizing endurance performance: metrics, nutrition, lactate, and more insights from elite performers | Olav Aleksander Bu (Pt. 2)

And even there, you can even train yourself also to the point where you're not talking about marginal differences in your VO2. You can spike the numbers up to extreme numbers if you practice this a little bit. That aside, I think it's important here to remember that that's not equivalent to getting fitter.

The Peter Attia Drive
#331 ‒ Optimizing endurance performance: metrics, nutrition, lactate, and more insights from elite performers | Olav Aleksander Bu (Pt. 2)

And even there, you can even train yourself also to the point where you're not talking about marginal differences in your VO2. You can spike the numbers up to extreme numbers if you practice this a little bit. That aside, I think it's important here to remember that that's not equivalent to getting fitter.

The Peter Attia Drive
#331 ‒ Optimizing endurance performance: metrics, nutrition, lactate, and more insights from elite performers | Olav Aleksander Bu (Pt. 2)

It's just a way of basically manipulating something in the body and you're cheating a protocol. And it's not your, let's say, VO2 max.

The Peter Attia Drive
#331 ‒ Optimizing endurance performance: metrics, nutrition, lactate, and more insights from elite performers | Olav Aleksander Bu (Pt. 2)

It's just a way of basically manipulating something in the body and you're cheating a protocol. And it's not your, let's say, VO2 max.