Re: 2004... respond

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: Hi Dan : Thanks for showing in: : Again a lot of questions and after our weekend I will publish some numbers here. : Now short some back questions. : The O. Andersen study of Dudly and Holl. : If you read his article carefully , so you see ,that they compared different values: : Summary : Holl. check for mitochondria density ( numbers ) structural change : Dudley checked for a functional change ( Cytochrome c ) : As usual you have atn a higher intensity a better functional respond. Question is only , how long can you go that high before you come in our discussion off over reaching , underperforming and overtraining /fatigue. : I suggest to you to read Dudleys study ( original )and see how Andersens summary ended up on his own interpretation of going hard. : There are actuall benefits for some harder training, but they are on very specific muscle fibers. : I like to take a part out of a study of Hormonal response to exercises a methodological consideration by M. Tremblay Length of training intervention. : " There is a lack of research that provides time-course changes in basal or resting hormone levels in response to exercise training. Because information in this area is lacking, it is difficult to interpret research results from short- term intervention studies. In 8 weeks studies there was no change in hormonal response. : " : Problem 2 is : out of Exercise and GH - Insulin -like GH Axis : : Several previous studies reported that GH response to exercise is greater in less fit subjects. However, in those earlier studies, subjects were asked to perform exercise test at the same absolute , rather than relative power. Since fitness varies so greatly in any population, the use of an absolute rather than relative work intensity can lead to thepotentially confounding circumstance in which subjects exercise belo, whereas others exercise above their lactic/anaerobic threshold (LAT. This is an important distinction, since hormonal and metabolic response to exercise are not related to exercise in a simple linear manner. " : Wow : this may as discussed before opens a whole lot of questions about a lot of research papers , based on groups training with for example 70 % of the VO2 max. : Are they all training in the same intensity , metabolically spoken. : What do you think. ? : I have to find the last puzzle to put out for you : : A lot of research where the respond in rats was tested show a complete different respond in humans ? : Would you accept a heart valve from a rat experiment ? : Big question little answer of the full value of transfering result from animals to humans. : Thats' why we are thank ful to our athletes , that they have the nerves to stick with us and give us some long tern research results. : Have to go for the moment . Juerg

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