ATP-PCr energy system

Summary

In this 'Whiteboard Wednesday' episode, the focus is on the ATP-PCr energy system, also known as the anaerobic alactic system, which powers quick, high-intensity movements without oxygen. The video explains how ATP stored in muscles provides immediate energy for about 2-3 seconds, after which phosphocreatine replenishes ATP, extending high-intensity activity to around 10 seconds. The session clarifies misconceptions about this energy system, emphasizing its interdependence with others, and hints at the upcoming discussion on the anaerobic glycolytic energy system.

Takeaways

• 🏋️‍♂️ The ATP-PCr energy system is responsible for fast, instantaneous movements without the reliance on oxygen.
• ⏱️ This system provides energy for about 2 to 3 seconds of high-intensity movement initially from stored ATP in the muscle.
• 🔄 ATPase cleaves off an inorganic phosphate molecule from ATP, releasing energy for various bodily functions.
• 🔋 The ATP-PCr system acts as a reservoir, using phosphocreatine (PCR) to regenerate ATP and extend high-intensity activity to about 10 seconds.
• 💊 Creatine supplementation can increase the body's PCR levels, thus enhancing the capacity of the ATP-PCr system.
• 🔄 The byproducts of the ATP-PCr system, such as ADP and inorganic phosphate, trigger the breakdown of glycogen and glucose for the next energy system.
• 🔗 The energy systems of the body are interdependent, with one system's byproducts often activating the next.
• 🔬 The analogy of three pots simmering on a stove top is used to explain how energy systems can be dialed up or down depending on the body's needs.
• 🏃‍♂️ The ATP-PCr system initiates all movements and is crucial for activities requiring quick bursts of energy, like sprinting or jumping.
• 📚 Understanding the ATP-PCr system is essential for athletes and coaches to optimize training and performance in sports requiring explosive power.

Q & A

What is the primary focus of the video?

The video focuses on explaining the ATP-PCr energy system, also known as the anaerobic alactic system, which is responsible for fast and immediate movements without the reliance on oxygen.

How long can the ATP stored in the muscle sustain movement?

The ATP stored in the muscle can sustain movement for about 2 to 3 seconds, depending on the individual and their training status.

What happens when ATP is cleaved by ATPase?

When ATPase cleaves ATP, a phosphate molecule is released, and energy is released for various bodily functions such as movement, digestion, and neural stimulus.

What is the role of phosphocreatine (PCr) in the ATP-PCr energy system?

Phosphocreatine acts as a reservoir to resupply ATP by combining with ADP and creatine kinase to produce more ATP, extending high-intensity movement time to about 10 seconds.

How can the capacity of the ATP-PCr system be increased?

The capacity of the ATP-PCr system can be increased through creatine supplementation, which provides more PCr to convert ADP back into ATP.

What is the significance of the byproducts of the ATP-PCr energy system?

The byproducts of the ATP-PCr energy system, such as ADP and phosphate, activate the breakdown of glycogen and glucose, preparing the body to switch to the next energy system, the anaerobic glycolytic system.

How does the ATP-PCr system integrate with other energy systems?

The ATP-PCr system integrates with other energy systems by producing byproducts that signal the need to activate the next energy system, ensuring a continuous supply of energy for the body during high-intensity activities.

What is the analogy used in the video to describe the interaction between different energy systems?

The analogy used is that of three pots simmering on a stove top, where the heat (energy demand) is adjusted by dialing up a different pot, representing the activation of various energy systems as needed.

What is the next energy system that kicks in after the ATP-PCr system?

After the ATP-PCr system, the anaerobic glycolytic energy system kicks in to provide energy for sustained high-intensity activities.

Why is it important for the body to have multiple energy systems?

Multiple energy systems are important for the body to meet the varying energy demands of different activities, ensuring that there is a continuous supply of energy for both short, high-intensity bursts and longer, less intense efforts.

How can one enhance their ATP-PCr energy system capacity through training?

One can enhance their ATP-PCr energy system capacity through high-intensity interval training, which stimulates the muscles to store more ATP and PCr, thus improving the system's efficiency.

Outlines

00:00

🏋️‍♂️ Introduction to ATP-PCr Energy System

The video begins with an introduction to the ATP-PCr energy system, also known as the anaerobic alactic system, which is crucial for fast movements and initiating all movements without the need for oxygen. The speaker emphasizes that energy systems work interdependently, like pots on a stove, and the ATP-PCr system is the first to be activated. It provides immediate energy through the breakdown of ATP stored in muscles, which lasts for about 2 to 3 seconds. The process involves ATPase cleaving off a phosphate molecule, releasing energy for various bodily functions. The speaker also explains the role of phosphocreatine (PCR) as a reservoir to regenerate ATP, extending the energy supply for high-intensity movements up to 10 seconds.

05:02

🔁 ATP-PCr System's Role in High-Intensity Movements

This paragraph delves deeper into how the ATP-PCr system extends high-intensity movement capabilities. It discusses the role of supplementation with creatine to increase PCR levels, which in turn can regenerate more ATP from ADP, thus sustaining intense exercise for about 10 seconds. The speaker also mentions an alternative pathway involving DNA kinase to produce ATP from two ADP molecules. The byproducts of ATP-PCr, such as phosphate and ADP, trigger the breakdown of glycogen and glucose, preparing the body to switch to the next energy system, the aerobic glycolytic system. The video concludes with an invitation for viewers to ask questions about the ATP-PCr energy system.

Keywords

💡ATP-PCr Energy System

The ATP-PCr Energy System, also known as the anaerobic alactic system, is the primary focus of the video. It is the energy system responsible for providing immediate, high-intensity energy for physical activities. The video explains that this system allows for fast movements without the reliance on oxygen, highlighting its role in initiating all movements and providing energy for about 10 seconds of high-intensity exercise. It is crucial for activities that require a quick burst of energy, such as sprinting or lifting heavy weights.

💡Adenosine Triphosphate (ATP)

ATP, or adenosine triphosphate, is the molecule that stores and transfers energy within cells. In the context of the video, ATP is described as the immediate energy source for muscle contractions and other cellular functions. The video mentions that there is a small amount of ATP stored in the muscle, which can be used instantly for about 2 to 3 seconds of activity before it needs to be replenished.

💡Phosphocreatine (PCr)

Phosphocreatine, or PCR, acts as a reservoir to replenish ATP. The video explains that when ATP is used, it leaves behind ADP (adenosine diphosphate) and a free phosphate molecule. Phosphocreatine combines with ADP to reform ATP, thus extending the duration of high-intensity activity to about 10 seconds. This process is facilitated by the enzyme creatine kinase.

💡Creatine Kinase

Creatine kinase is an enzyme that plays a vital role in the ATP-PCr energy system by catalyzing the transfer of a high-energy phosphate group from phosphocreatine to ADP, forming ATP. This reaction is crucial for rapidly regenerating ATP during high-intensity exercise, as explained in the video.

💡Anaerobic

The term 'anaerobic' refers to processes that occur without the use of oxygen. In the video, the ATP-PCr energy system is described as anaerobic, meaning it can provide energy for muscle contractions without oxygen. This is important for activities that require a quick burst of energy where oxygen supply might not be sufficient.

💡Adenosine Diphosphate (ADP)

ADP, or adenosine diphosphate, is the byproduct of ATP when it releases energy. The video describes how ATP is broken down into ADP and a free phosphate molecule, which then can be used in the ATP-PCr system to regenerate ATP. ADP is a key molecule in the energy transfer process within cells.

💡Energy Systems

The video discusses the concept of energy systems, which are the body's mechanisms for producing energy. The ATP-PCr system is one of these systems, and the video explains how it works in conjunction with other systems, such as the aerobic glycolytic system, to meet the body's energy demands during different types of physical activity.

💡Glycogen

Glycogen is a form of glucose storage in the body, primarily in the liver and muscles. The video mentions that the byproducts of the ATP-PCr system, such as ADP and inorganic phosphate, can activate the breakdown of glycogen to glucose, which is then used as a source of energy in the next energy system, the aerobic glycolytic system.

💡High-Intensity Movement

High-intensity movement is a type of physical activity that requires a lot of energy in a short amount of time. The video explains that the ATP-PCr energy system is responsible for fueling these types of movements, which typically last for about 10 seconds, until other energy systems can kick in.

💡Supplementation

Supplementation refers to the practice of ingesting substances to enhance performance or health. In the context of the video, creatine supplementation is mentioned as a way to increase the body's phosphocreatine levels, thereby extending the capacity of the ATP-PCr energy system and potentially improving high-intensity exercise performance.

💡Aerobic Glycolytic Energy System

While not the main focus of this particular video, the aerobic glycolytic energy system is mentioned as the next energy system that kicks in after the ATP-PCr system. This system uses glucose and oxygen to produce ATP during sustained, high-intensity exercise. The video suggests that the byproducts of the ATP-PCr system help activate this next energy system.

Highlights

Introduction to the ATP-PCr energy system, also known as the anaerobic alactic system, which is responsible for fast movements and initiates all movements without the reliance on oxygen.

The ATP-PCr system allows for instant movement and is the first energy system utilized when we start any physical activity.

There is a small amount of ATP stored in the muscle, which can sustain high-intensity movement for about 2 to 3 seconds.

ATPase enzyme cleaves off an inorganic phosphate molecule from ATP, releasing energy for various bodily functions.

The ATP-PCr system has two components: ATP storage in the muscle and the resynthesis of ATP from ADP and phosphocreatine (PCr).

Phosphocreatine acts as a reservoir to resupply ATP, extending the duration of high-intensity movement to about 10 seconds.

Creatine supplementation can increase the body's PCr levels, thus enhancing the capacity of the ATP-PCr energy system.

The byproducts of the ATP-PCr system, such as ADP and inorganic phosphate, activate the breakdown of glycogen and glucose, preparing the body for the next energy system.

The energy systems of the body are not independent; they work in concert with each other, with one system's byproducts often triggering the next.

The ATP-PCr system integrates with other energy systems, such as the anaerobic glycolytic system, to meet the body's energy demands during sustained activity.

The concept of energy systems is likened to pots simmering on a stove top, with the body adjusting the 'heat' to different pots based on the energy demands of the activity.

The ATP-PCr system is crucial for activities that require short bursts of intense energy, such as sprinting or weightlifting.

The video provides a detailed explanation of the molecular makeup and reactions involved in the ATP-PCr energy system.

The role of creatine kinase in the resynthesis of ATP from ADP and PCr is highlighted, emphasizing its importance in the energy system.

The video clarifies common misconceptions about the ATP-PCr energy system and its relationship with other energy systems in the body.

The upcoming video in the series will discuss the anaerobic glycolytic energy system, which is triggered by the byproducts of the ATP-PCr system.

An invitation for viewers to ask questions about the ATP-PCr energy system, demonstrating an interactive approach to education.

Transcripts

hey do they make Smitty Graham here from

exponential performance coaching welcome

back to another whiteboard Wednesday and

today we're going to jump into the

second video of our energy systems

series and we're going to be talking

about that in aerobic ATP PCR energy

systems let's get into it

[Music]

do they mate welcome back to another

whiteboard Wednesday in today's episode

we are going to be digging into the

first of our energy systems in this

energy systems series the first energy

system we're going to be covering is the

ATP PCR energy system or as it's

sometimes known that anaerobic electic

system now this unity system is

responsible for all of our fast

movements but it also initiates all of

our movements as well and what it allows

us to do is to move instantly without

the reliance of oxygen once we get

moving our other energy systems kick in

too and to gear so to speak and we and

we move through into those more

sustainable energy systems but this

instantaneous energy system allows us to

spring into life move if we need to

these kind of two components of it and I

find that a lot of people get confused

about that ATP PC our energy system so

what I want to do today is try and break

it down a little bit and hopefully

explain it in a way that you can that

you can grasp now just remember none of

our energy systems work independently of

each other and I like the analogy of

three pots simmering on a stove top and

then what we do is we just dial up the

heat on a different pot depending on

what we're trying to cook so to speak

and hopefully that becomes a little bit

clearer as we move through things but

there's a dependency between the energy

systems so ATP PC our energy system

there's quite a two components of it and

that's why I've got this dashed line

down the middle of the board here to try

and hopefully get that concept over to

you first of all we've got what's

happening in the muscle the ATP storage

if you remember back to our last video

there's a small amount of ATP stored in

the muscle about two to three seconds

depending on who you are and your

training status so this ATP will

remember this molecular makeup here

this ATP can be used instantly so what

happens is ATPase this here Cleaves off

this in phosphate molecule and so this

phosphate molecule now is floating free

in that process energy over here this

big lightning arrow

energy is released okay that is energy

for movement for digestion for neural

stimulus whatever it might be and in the

process we're left with an ADP and a

free phosphate molecule because this guy

here is now floating around so that is

the first instantaneous energy that we

get

we've got enough energy to do that for

about 2 to 3 seconds of movement after

that the ATP runs out so what we need to

do is we need a bit of a reservoir and

this is what the PCR aspect over here

does it acts as a bit of a reservoir to

resupply this so that this process can

happen a few more times so what we do is

we take this ADP over here and we come

over to this side and what we do is if

we get an ATP molecule what's remember

there's just an ATP adenosine

triphosphate

but with this molecule gone this

phosphate molecule so now there's the

adenosine SV and then two phosphate

molecules adenosine diphosphate so we've

got our adenosine diphosphate over here

if we couple that with phosphocreatine

or PCR using creatine kinase to help

this reaction along what actually

happens as we produce another ATP

molecule which is pretty cool so we're

left with ATP molecule over here and a

free creatine floating around in the

system so this here gives us some more

energy and this process here can happen

again

so the ATP cleave off one of those

phosphate molecules bond more energy is

released and what this allows us to do

is extend out our movement time to about

10 seconds of high-intensity movement we

can increase the capacity with

supplementation if we have a look at PCR

if we have more PCR floating around in

our system then we have more PCR to pick

up the ADP molecules and turn them back

into ATP and we can do that by consuming

creatine okay and some of you are

probably quite familiar with creatine

supplementation the other way we can do

this is that we can take to ADP

molecules and with the help of a DNA

kinase we're able to actually make

another ATP molecule as well and then

that feed back over here

and we were able to get that system

happening again so this allows us about

10 seconds of energy we've got about 2

to 3 seconds stored in the muscle when

that runs out we dip into this reservoir

over here and that allows that high

intensity exercise intensity to be

maintained out to about 10 seconds now

the really cool part of this is the

whole system's integrate with each other

as the products

ANP which is released over here after

this reaction happens phosphate what you

can see is released over here when this

reaction happens and adp again released

over here in this reaction happens these

all activate the breakdown of glycogen

and glucose to mobilize them our next

energy system to

to get an aerobic glycolytic energy

system because if there's a lot of work

happening and our body knows that we're

going to need to repay this energy

deficit so we've been a spark up and

next energy system which is our

anaerobic oolitic energy system and the

byproducts of this energy system check

this mixed one into gear and that's what

we're going to talk about in a next

video if you've got any questions about

the ATP PCR energy system fire them

through and I'll do my best to answer

them I hope that helped