In his latest piece for Outside, Alex Hutchinson writes about a guy who took 12 weeks totally off and his VO2 max declined by 10%. But then after 12 weeks of training, his VO2 max was 5% ABOVE what it was before he took the time off.
I remember reading that Mark Nenow would take completely off training from Thanksgiving to new years. I started doing something similar myself in the last few years and I definitely noticed a improvement as opposed to just keeping grinding it out year round.
In his latest piece for Outside, Alex Hutchinson writes about a guy who took 12 weeks totally off and his VO2 max declined by 10%. But then after 12 weeks of training, his VO2 max was 5% ABOVE what it was before he took the time off.
I think these validates what I used to hear about the Kenyans. Don't the Kenyans always take a full month off at the ned of the year
What this doesn't mention though is that his running economy and cycling economy was much lower after the re-training period than it was before the rest period. Whilst his VO2max bounced back quickly, other important variables for running did not.
I think it’s fairly common for recreational athletes to overtrain. Sounds like this guy needed the break. If you’re training appropriately, you probably don’t need a 12 week break.
In his latest piece for Outside, Alex Hutchinson writes about a guy who took 12 weeks totally off and his VO2 max declined by 10%. But then after 12 weeks of training, his VO2 max was 5% ABOVE what it was before he took the time off.
I think these validates what I used to hear about the Kenyans. Don't the Kenyans always take a full month off at the ned of the year
What this doesn't mention though is that his running economy and cycling economy was much lower after the re-training period than it was before the rest period. Whilst his VO2max bounced back quickly, other important variables for running did not.
Are you saying this happened and you read it elsewhere? Or are you speculating that might be the case? It says nothing about economy being lower so no idea what you’re talking about
Noakes, T. D., Myburgh, K. H., & Schall, R. (1990). Peak treadmill running velocity during VO2max test predicts running performance. Journal of Sports Sciences, 8, 35-45.
Marathon runners (N = 20) and ultra-marathoners (N = 23) were tested for VO2max, peak treadmill running velocity, velocity at lactate turnpoint, and VO2 at 16 km/h using an incremental (1 min) treadmill test. Results. Race times at 10, 21.1, and 42.2 km of the specialist marathoners were faster than those of the ultra-marathoners, however, only the 10 km time differed significantly. Lactate turnpoint occurred at 77.4% of VO2max and at 74.7% of peak treadmill velocity. The average VO2 at 16 km/h was 51.2 ml/kg/min which represented 78.5% of VO2max.
For all distances, performance time in other races was the best predictor of performance (r = .95 to .98). The best laboratory predictors were: (a) peak treadmill running velocity (r = -.89 to -.94); (b) running velocity at lactate turnpoint (r = -.91 to -.93); and (c) fractional use of VO2max at 16 km/h (r = .86 to .90). The predictive value of the lactate turnpoint measure increased as the distance increased. The poorest predictors were: VO2max (r = -.55 to -.81) and VO2 at 16 km/h (r = .40 to .45).
Conclusion. There may be no unique physiological characteristics that distinguish elite long-distance (10 km or longer) runners as is often promoted. Other factors determine success in high level sports among exclusive groups of superior athletes. Implication. Running performance is the best predictor of running capability in elite long-distance runners. Physiological laboratory testing gives less information than does actual performance. Even the fastest speed of running on the treadmill is a better predictor than any physiological measure. This suggests that for at least endurance-dominated sports, actual performances in a variety of performance-specific situations will give more useful information than that which can be obtained in any physiology laboratory test.
VO2 Max doesn't mean anything It's an oft-used and little understood term used by grad students to justify to their parents that their efforts and money have not gone to waste. University administrators have been duped by this sciolistic fog-machine, as well. How else could the waste of valuable resources, time and money, be covered-up with impunity? Parents and other intelligent, rational thinking adults could not possibly decipher this code. Do not try to yourself. You'll only make yourself look foolish reciting the catechism of the exercise-physio-geeks.
This nascent science of exercise physiology was born out of a failed genetics experiment in the early 60s; the breeding of an economist and a sociologist. The offspring from this pairing would say more and mean less than the combined blather of the two parents put together. Common sense would have told us how this experiment would have ended, but stubborn researchers pushed ahead, nonetheless.
The only numbers that matter are the ones that you receive at the end of the race. The most important of these is called place, and is represented as an ordinal. A '1' is the best indicator of your performance. If you get a '1' then you've done excellent. It's no small coincidence that '1' is a homophone for 'won'. Other excellent numbers to receive are '2' and '3'. Not nearly as good as a '1', but by tradition and convention the numbers '1', '2' and '3' are deemed to be the 'supreme ordinals'; that is to say, worthy of gold, silver and bronze, and are segregated from the other ordinals. The rest of the ordinals are represented by the formula: n + 1...(to infinity). There is a direct, inverse relationship between ordinal value and its worth. The closer to the supreme ordinals, the better you've done, the closer to infinity, the worse you've done.
One of the other numbers that matters much more than VO2 Max is time. Time is always secondary to place in it's value. Neither place nor time are given in the gerbil-wheel lab tests conducted by the exercise-physio-geeks. You will only receive them in the experiment that the real experts call competition. Time does not supercede place, but it is a way of comparing the place of two or more experiments from different venues and eras. The juxtaposition of time and place is the business of track statisticians, who, by the way, are also the progeny from the aforementioned failed genetics experiment.
Long ago, time was measured as a fraction of the earth's rotation in base 60: hours, minutes and seconds. It's still expressed as such, however, the predecessors to the exercise-physio-geeks have determined that time should now be measured in terms of the vibration frequency of irradiated Cesium atoms. Your watch has quartz crystals in it that will simulate this experiment for you (without the attendant radiation and disposal problems) and convert the results automatically, presenting them to you in the form of easily recognizable numerical glyphs. No complicated formulae to memorize!
Through complex mathematical machinations, physicists have proven that it is physically impossible for VO2Max to supersede either time or place in value. Physicist Richard Feynman once said, "VO2Max and five bucks will get you a cup of joe at Starbucks."
So far, in the history of sports, not one award has been given, nor has there ever been remuneration, for VO2Max results.
There are many other factors that are much more indicative of athletic performance, or the potential for performance, than VO2 max. I couldn't possibly begin to list them all: height, weight, hair color, skin color, shoe size, favorite TV show...the list is endless.
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What is VO2 max? Simply put, the oxygen consumption capacity of the body during exercise. It's value is expressed as: Volume of oxygen (O2) consumed, per Unit Body mass, per time interval or: milliliters O2/Kg body/minute. Check that out, two variables and one constant in the formula. Look at the denominator of the formula: Kg body mass. Want to improve VO2 max without training? Lose weight.
At rest, the human body has a VO2 of 3-4 ml/kg/min. According to the exercise physiologists: sedentary individuals have a VO2 max of 40-50. Trained recreational runners 55-65. Competitive runners 65-80, and elite runners 84-92. The truth of the matter is that there are no distinct boundaries separating these groups. Many recreational runners have higher VO2 max (80s) than competitive and elite runners. Many elite runners have lower VO2 max (70s) values than some of the recreational runners.
Take a sampling of runners with PR differences of just 2% in their specialties. For example, that would be three sets of athletes collected together like so: 1) 1500m (3:29.7-3:34.0) 2) 5000m (13:00-13:16) 3) 10,000m (26:57-27:30) Now fly in exercise physiologists from around the world and geek-out: treadmills, oxygen ventilators, calipers, rectal probes! Collect the data, crunch the numbers and what do you get? Sets of highly-trained runners with similar PRs (2% differentials) with VO2 max values that vary wildly: 10 to 15 percent (sometimes more)! Runners with slower PRs having higher VO2 max. How is that predictive of performance?
As a broad generalization, I'll agree that trained runners will have higher VO2 max than the sedentary. That is called the common sense doctrine. Within sampling sets of like-performing athletes, there is no direct correlation.
Triathletes, especially Ironman athletes, are known to often be in a state of overtraining. Not surprising at all that a long break would help them climb out of an overtraining hole.
What this doesn't mention though is that his running economy and cycling economy was much lower after the re-training period than it was before the rest period. Whilst his VO2max bounced back quickly, other important variables for running did not.
Are you saying this happened and you read it elsewhere? Or are you speculating that might be the case? It says nothing about economy being lower so no idea what you’re talking about
This study examined the physiological effects of 12 weeks of detraining and retraining in a highly trained master triathlete (age 53.8 years). Variables associated with swimming, cycling, and running performance, including V˙...
My break is speed work Nov-Dec are all about speed development. No long runs, only small recovery runs, small hill work and speed work 2days/week. That’s my break for me.
Thanks for the link. I read part and skimmed over the rest of this study. It has some significant shortcomings.
1. n=1. Obviously, to draw any meaningful conclusions, we would need more subjects.
2. Was the subject overtrained? Specifically,
a. What were cortisol levels before the break? After detraining? After 12-weeks of training?
b. What were testosterone levels before the break? After detraining? After 12 weeks of training?
We know that intense endurance exercise reduces T-levels.We know that high cortisol levels reduce T levels. These could be factors, but they weren't studied.
3. BF% declined from 10.1% pre-break to 8.7% after retraining. He was also 2.6kg lighter. That's a lot for a top level masters athlete who is already in great shape. This body reshaping could also be a factor.
This post was edited 55 seconds after it was posted.
Thanks for the link. I read part and skimmed over the rest of this study. It has some significant shortcomings.
1. n=1. Obviously, to draw any meaningful conclusions, we would need more subjects.
2. Was the subject overtrained? Specifically,
a. What were cortisol levels before the break? After detraining? After 12-weeks of training?
b. What were testosterone levels before the break? After detraining? After 12 weeks of training?
We know that intense endurance exercise reduces T-levels.We know that high cortisol levels reduce T levels. These could be factors, but they weren't studied.
3. BF% declined from 10.1% pre-break to 8.7% after retraining. He was also 2.6kg lighter. That's a lot for a top level masters athlete who is already in great shape. This body reshaping could also be a factor.
Oh, and one other thing. The percentage of time training each sport changed. In the retraining cycle, he spent more time on the bike and less swimming and running. That could also be a factor.
