The aerobic mechanism

[Guest guest]

Colleagues,

We need to be careful when inferring energy system contributions to activity.

The interaction between the three energy systems is pretty remarkable. Consider:

•The PC shuttle is the conduit through which oxidative energy production (in the

mitochondria) is transported to the contractile site (cross bridges)where it's

utilized. So here's an 'anerobic' fuel playing a pivotal role in 'aerobic'

metabolism.

•Glycolysis, that long and complicated fermentation pathway, is essentially a

mechanism where two more high-energy phosphates (PEP and 1,3DPG) spit out

energy. And, of course, with one more step its end products can be oxidized. The

lactate shuttle mechanism turns out to be a hugely beneficial way to extract

'aerobic' energy from an 'anerobic' pathway, massively increasing total energy

yield (at the expense of some pH changes and time lags).

•Oxidative metabolism is a shell built around a nonoxidative hub (whereas

conventional wisdom seems to have it the other way around).Cellular metabolism

is fundamentally 'anaerobic', supported by an 'aerobic' system that seems to

have originated as an O2 detox mechanism. The beauty of this system is that we

simultaneously extract energy from the detoxification process. Don't take my

word for it: do some homework on the creatine trigger hypothesis.

When you step back and connect the dots, a simple picture emerges: For all

intents and purposes, all three energy systems contribute to everything. That

was the real thrust behind the idea of " tactical metabolic training " . Identify

the work:relief intervals and effort distribution of the target activity, and

the energy system contributions will take care of themselves.

Regards,

Plisk

Excelsior Sports •Shelton CT

www.excelsiorsports.com

Prepare To Be A Champion!

[Guest guest]

I agree with the content of this post. The esteemed members of this

list should take careful note of S. Plisk's insight in this matter.

Dan Partelly

Oradea, Romania

>

> Colleagues,

>

> We need to be careful when inferring energy system contributions to

activity. The interaction between the three energy systems is pretty

remarkable. Consider:

>

> •The PC shuttle is the conduit through which oxidative energy

production (in the mitochondria) is transported to the contractile

site (cross bridges)where it's utilized. So here's an 'anerobic' fuel

playing a pivotal role in 'aerobic' metabolism.

>

> •Glycolysis, that long and complicated fermentation pathway, is

essentially a mechanism where two more high-energy phosphates (PEP and

1,3DPG) spit out energy. And, of course, with one more step its end

products can be oxidized. The lactate shuttle mechanism turns out to

be a hugely beneficial way to extract 'aerobic' energy from an

'anerobic' pathway, massively increasing total energy yield (at the

expense of some pH changes and time lags).

>

> •Oxidative metabolism is a shell built around a nonoxidative hub

(whereas conventional wisdom seems to have it the other way

around).Cellular metabolism is fundamentally 'anaerobic', supported by

an 'aerobic' system that seems to have originated as an O2 detox

mechanism. The beauty of this system is that we simultaneously extract

energy from the detoxification process. Don't take my word for it: do

some homework on the creatine trigger hypothesis.

>

> When you step back and connect the dots, a simple picture emerges:

For all intents and purposes, all three energy systems contribute to

everything. That was the real thrust behind the idea of " tactical

metabolic training " . Identify the work:relief intervals and effort

distribution of the target activity, and the energy system

contributions will take care of themselves.

>

> Regards,

>

> Plisk

> Excelsior Sports •Shelton CT

> www.excelsiorsports.com

> Prepare To Be A Champion!

>