Another anaerobic question for those who have the knowledge.

just because the oxygen is being used, doesnt mean your windpipe is cut off. yes, you are breathing as hard as you can during the 800, but the majority of the physiology that takes place isnt necessarily in done through breathing, its done through the heart/blood lactate levels that jump extrememly high when running an anaerobic event such as the 800meters.

I assume when you say anaerobic intervals, you mean things like mile pace and faster repetitions.

In general terms, you are never "all or none" in terms of anaerobic and aerobic metabolism. It's always a combination of sources in action to produce muscular movement.

When you hear things like, "the 800 is 60% aerobic/ 40% anaerobic" it's simply an average of the testing results on the runners in the study: an overall average of the energy contribution. 60/40 doesn't mean the first 60% of the race was aerobic and the last 40 was anaerobic, it just means the overall energy cost was paid 60% by the aerobic system and 40% by the anaerobic system.

"Aerobic" or "Anaerobic" are laymen's terms used to define an effort range. They are not physiological terms. They do not properly define what is going on in the muscles.

In general terms, "Anaerobic" intervals should train your ability to produce energy "Anaerobically". This is used to describe Fast Glycolysis, or Incomplete Glycolysis, with the end result being the production of lactate. Also, since it takes more time to replenish the system the rest should be longer. Long rests train your "anaerobic" energy pathways. Short rest train your "aerobic" energy pathways.

Alan

Please, Chris Hall, can´t you leave the physiology to the experts?

i am. thats why i replied. i am an expert.

Thanks for you comments. Any other?

according to what institution or based on what certification?

the430miler wrote:

i am. thats why i replied. i am an expert.

what are your credentials