After exploring a few ways athletes can improve their VO2max, we have learned that coaches and athletes can maneuver around limitations a human’s physiology might have. Despite all the adaptations, training methods, and ergogenic aids an athlete may have access to, there is one thing that they cannot escape. Age.
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Physiological responses to exercise have age-related differences between the young and the old. VO2max will decline with age without regard to whether or not an individual is trained or untrained.1 A study by Grey et al. showed that untrained young, middle age, and older individuals had a VO2max of 50, 45, and 30 ml•kg-1•min-1, respectively. Trained young, middle aged, and older individuals had a VO2max of 67, 55, and 45 ml•kg-1•min-1, respectively. 1 Although there is a significant difference in values in the corresponding ages, there was still a decrease in VO2max. An individual can lose around 1% of maximal aerobic power per year from its peak value (age 20 – 40 years). 2 In an earlier blog, we learned that VO2max (maximal aerobic capacity) is determined by the uptake of oxygen of the tissues as well as cardiac output.2 Aging causes a decline in maximal cardiac output and maximal a-v O2 difference, which both contribute to the decline in VO2max.2
Although long-term endurance exercise cannot halt the declining effects of aging on VO2 max, it can slow it down. Long-term endurance training can prevent the slowing of VO2 kinetics. This is shown by the absence of age-related slowing of VO2 kinetics, presented by the oxygen delivery to oxygen utilization ratio in trained older individuals.1 As a result, the trained older individual will experience a lower decline in VO2max.1
No one can outrun the effects of age, but with the help of long-term endurance training, it can be slowed down. An individual's VO2max will decrease without regard to if they are trained or untrained, but the individual who is trained can prevent the slowing of VO2 kinetics.1 For the majority, a decline in VO2max is usually due to a decline in physical activity. With this decrease comes a decline in being able to engage in physical activity comfortably. This initiates a snowball effect and affect quality of life, and could lead to even more health problems.2 Things like asthma, bronchitis, and emphysema can also cause a significant decrease in oxygen uptake kinetics. This will be discussed more in the upcoming blog.
References:
1Grey, T. M., Spencer, M. D., Belfry, G. R., Kowalchuk, J. M., Paterson, D. H., and Murias, J. M. Effects of Age and Long- Term Endurance Training on VO2 Kinetics. Medicine & Science In Sports & Exercise. 2015; 47 (2); 289-298.
2Powers, S.K. and Howley, E. T. Exercise Physiology. Theory and Application
to Fitness and Performance. 2015; (9): 383-386, 509-512.
I was able to overcome senile dementia via a complete naturopathic process.
ReplyDeleteAbout two years ago, when I was 56, I started feeling foggy and had occasional memory lapses. My wife, Mary, started to notice it, too, but I also have hearing issues so she thought that was the problem. My memory worsened very gradually over the years, and we lived with it, compensating as needed. I became less social. After some months thereafter, it got to the point where we couldn’t keep making excuses or ignoring it. I had gone from doing our grocery shopping without a list to going with a list, to having the list but not buying what was on it.
Mary went online to do some research, and it was during this process we had been fortunate enough to come across Dr. Utu Herbal Cure: an African herbalist and witch doctor whose professional works had majored on the eradication of certain viral conditions, especially dementia, ( improving the memory capacity positively), via a traditional, naturopathic process and distinguished diet plan. It was by the administration of this herbal specialist that I had been able to improve my condition for better. So to say, the encounter with the above-mentioned herbal practitioner was the first time we ever heard there was something that possibly can be done to improve my memory functionality.
By the existence of such an encounter, I was able to learn of the new approach by which this herbalist successfully treated dementia conditions, which included a distinguished herbal therapy and lifestyle changes of which I had undergone to a tremendous, positive effect.
It was after the completion of the herbal therapy I had started to experience a great deal of cognitive improvement when it came to rational decision making.
In brief, I was able to go through the dreadful hollows of senile dementia without any further hazardous damage to my health condition, and within a short period. Had it not been for the support of my wife, of whom had encouraged me to undergo the above-mentioned therapy and that of the herbal practitioner of whom now happens to be benefactor - I would have been long exposed to the further perils of this condition and of which had been apt to result to a calamitous end.
I would also wish for the same positiveness upon patients who may happen to be suffering from this debilitating disease, and would warmly beseech them to find a confidant like this herbal specialist with whose professional service I was able to attain a divine recovery.
For further information about this African traditional cure for Alzheimer's illness; feel free to contact this herbal practitioner directly via email: drutuherbalcure@gmail.com.
I was able to overcome senile dementia via a complete naturopathic process.
ReplyDeleteAbout two years ago, when I was 56, I started feeling foggy and had occasional memory lapses. My wife, Mary, started to notice it, too, but I also have hearing issues so she thought that was the problem. My memory worsened very gradually over the years, and we lived with it, compensating as needed. I became less social. After some months thereafter, it got to the point where we couldn’t keep making excuses or ignoring it. I had gone from doing our grocery shopping without a list to going with a list, to having the list but not buying what was on it.
Mary went online to do some research, and it was during this process we had been fortunate enough to come across Dr. Utu Herbal Cure: an African herbalist and witch doctor whose professional works had majored on the eradication of certain viral conditions, especially dementia, ( improving the memory capacity positively), via a traditional, naturopathic process and distinguished diet plan. It was by the administration of this herbal specialist that I had been able to improve my condition for better. So to say, the encounter with the above-mentioned herbal practitioner was the first time we ever heard there was something that possibly can be done to improve my memory functionality.
By the existence of such an encounter, I was able to learn of the new approach by which this herbalist successfully treated dementia conditions, which included a distinguished herbal therapy and lifestyle changes of which I had undergone to a tremendous, positive effect.
It was after the completion of the herbal therapy I had started to experience a great deal of cognitive improvement when it came to rational decision making.
In brief, I was able to go through the dreadful hollows of senile dementia without any further hazardous damage to my health condition, and within a short period. Had it not been for the support of my wife, of whom had encouraged me to undergo the above-mentioned therapy and that of the herbal practitioner of whom now happens to be benefactor - I would have been long exposed to the further perils of this condition and of which had been apt to result to a calamitous end.
I would also wish for the same positiveness upon patients who may happen to be suffering from this debilitating disease, and would warmly beseech them to find a confidant like this herbal specialist with whose professional service I was able to attain a divine recovery.
For further information about this African traditional cure for Alzheimer's illness; feel free to contact Dr. Utu directly via email: drutuherbalcure@gmail.com.