There s a trade off mark, with regards to the optimal level of energy derived from fat, during aerobic activity (cardiovascular training).
At lower levels of intensity, your body does derive a higher percentage of its energy from fat over glycogen however as you re exercising at a lower intensity, your body requires less overall energy.
However, at high intensity, your body uses a predominantly glycogen driven energy derivation where you require a higher level of energy overall. This is where you may see the trade off for optimal intensity.
We all have various levels of intensity because we all perceive exertion differently, and because we re all at various levels of fitness ... therefore it would be remiss of me to discuss a specific setting . However, as a general level of intensity , aim for 60 . Your maximal effort is 100 , so roughly gauge your 60 effort, and utilise this as your speed of walking which likely will extend to jogging or running again, depending on your level of fitness.
It s important to be honest with yourself. Intensity often has direct correlations with your actual training gains.
As for your incline requirements you may use this if you wish ... however, as an incline will add difficulty, you d likely have to decrease your speed to maintain the same level of intensity (if you were jogging on a flat setting, you may wish to speed walk if you re on an incline).
While some cardiovascular training can possibly assist it greatly depends on the trainers goals where a bodybuilder has absolutely no requirement or necessity to training their aerobic system. Quite simply, they re after pure hypertrophy which in effect, will have strong impact on their body fat levels. The key for their body fat regulation actually stems from their nutrition / dietary factor, in conjunction with their heightened metabolic rate due to increased muscle.
As for the in theory there are some basics It is not theory, it s proven, practical and legitimate. You may ask different trainers and achieve different responses though this does not at all indicate more accurate, or applicable responses.
For example > You can ask a number of people regarding nutrition, and I m certain there ll be someone out there who ll suggest that a Lemonade Diet, or Low CHO diet would be useful for weight loss when in reality they re both terrible options.
Of course there are different strategies to reach the same (or similar) result that is the joy of exercise science and the ability to apply it in a range of ways however, there are certainly optimal or ideal solutions that would best fit ... (even though some body types are better suited to alternate methods).
While you may claim to already be aware of much of the basics (even though it s actually not that basic), you must realise there are others in the group that may benefit from extra information hence the reason some of this additional information was included.
Lastly, to address something from your original post the inference that fat burning doesn t occur in the first 20 25 minutes is completely untrue. Beyond the simplistic view that energy in v energy out dictates body fat levels, you re using energy immediately, and depending on the intensity level(s) will ofcourse burn fat immediately. Again, dietary and nutritional factors are a heavy influence on your results.
Author Resource:-
Chris McCombs is a fitness marketing specialist and you can learn more about his website at http://www.kickbacklife.com/
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