O2 debt and epoc?
This physiological effect is called excess post-exercise oxygen consumption, or EPOC. Also known as oxygen debt, EPOC is the amount of oxygen required to restore your body to its normal, resting level of metabolic function (called homeostasis).
The EPOC is the oxygen uptake above resting values used to restore the body to the preexercise condition. There are only small to moderate relationships between the oxygen deficit and the EPOC; the oxygen deficit may influence the size of the EPOC, but the two are not equal (6).
Oxygen debt is the oxygen required (after vigorous exercise, using up the oxygen faster than it can be breathed in) to oxidize lactic acid, created from anaerobic cellular respiration.
It can be described as the amount of oxygen consumed during recovery in excess of that which would have ordinarily been consumed at rest. Some factors that contribute to EPOC include the replenishment of CrP and ATP, the metabollism (i.e., conversion) of lactate to pyruvate, and hormone recovery.
An understanding that EPOC (oxygen debt) is caused by anaerobic exercise (producing lactic acid) and requires the performer to maintain increased breathing rate after exercise to repay the debt.
These data imply that the EPOC is more than mere repayment of the O2 deficit because metabolism is increasingly disturbed from resting levels as exercise intensity and duration increase due to other physiological factors occurring after the steady-state has been attained.
The classical "oxygen debt" hypothesis formulated by Hill and associates in the 1920s was an attempt to link the metabolism of lactic acid with the O2 consumption in excess of resting that occurs after exercise.
Repaying this oxygen debt is vital as lactic acid is toxic and a build up in our cells and muscles can lead to harmful effects if not converted to CO2 and water quickly enough. The existence of an oxygen debt explains why we continue to breathe deeply and quickly for a while after exercise.
To repay this debt, the body will increase its oxygen intake through an increase in respiration rate.
To compensate for the shortfall, your body taps into anaerobic metabolism — a process that allows you to produce energy without oxygen, but this comes at a cost. It's a bit like using a credit card; you get the energy now, but you have to pay back that oxygen debt later. That repayment process is EPOC.
How do you get out of oxygen debt?
Increase in oxygen delivery by augmenting cardiac output or by increasing fraction of inspired oxygen (FiO2) can help reduce oxygen debt.
Oxygen deficit and oxygen debt go hand in hand. When an oxygen deficit occurs, an oxygen debt will automatically take place, as well. During oxygen debt, our bodies work to replenish the oxygen stored in our muscles, and to remove waste products such as lactic acid that were produced during exercise.
EPOC scores < than 100 is slight, more than 300 is moderate, > 500 is high.
The key to inducing significant EPOC is to partake in high-intensity interval training, or HIIT. These short rounds of intense work are broken up with equally short recovery periods. Recovery is used to replenish the ATP that your body depleted during the active interval.
Answer and Explanation: Fatigued muscles repay an oxygen debt by oxidizing lactic acid back to pyruvate.
HR and BR only fall when lactic acid levels fall. When lactic acid levels fall, there is no longer oxygen debt and so the heart rate and breathing rate falls. The liver helps to break down lactic acid. The high heart rate also allows the blood to transport lactic acid from the muscle cells to the liver.
oxygen debt. noun. : a lack of oxygen that develops in the body during periods of intense activity and must be made good when the body returns to rest.
Due to the need for a lot of energy to conduct strenuous exercises like running, cycling, weightlifting, and so on, which results in a temporary oxygen deficit in the muscle cells. In the absence of oxygen, the cell of the organism undergoes anaerobic respiration, which converts glucose in muscle cells to lactic acid.
Running; boxing; swimming /any correct example of strenuous activities.
Summary: Mentally and physically demanding tasks trigger functional hypoxia across the brain. This oxygen shortage activates Epo, which stimulates the growth of new neurons and synapses. Oxygen deficit, also called hypoxia, in the brain is actually an absolute state of emergency and can permanently damage nerve cells.
What are the two stages of EPOC?
Below is a graph that shows EPOC with two stages of recovery: The initial rapid recovery stage (Alactacid Debt) The slow recovery stage (Lactacid Debt)
The name given to the volume of extra oxygen consumed after exercise. This is most obvious immediately after short bursts of intense activity when a person breathing heavily is said to be 'paying off the oxygen debt'.
Also known as oxygen debt, EPOC is the amount of oxygen required to restore your body to its normal, resting level of metabolic function (called homeostasis). It also explains how your body can continue to burn calories long after you've finished your workout.
An oxygen deficit occurs when the body needs more oxygen than that which is immediately available to produce energy. This means that the body is not getting enough oxygen from breathing and must find another way to make up the difference. As we exercise, our bodies use oxygen to create energy for movement.
The oxygen deficit was defined as the sum of the minute differences between the measured oxygen uptake and the oxygen uptake occurring during steady state work at that same rate.
