slower rate???
cardio for fatloss is about heartrate, not speed.
well maybe myself, david palumbo and the research journals are wrong.
quick heart rate is great for those into overall fitness BUT NOT MAXIMUM MUSCLE RETAINING. because the quick heartrate burns fat for hours after the cardio session, whereas as slow cardio burns more fat during the exercise but no more fat after the session. (eg- intense cardio boosts ur metabolism for hours after the session some say days, slow cardio does not) - so overall more FAT is burned by quick cardio as a result of the exercise - not during but overall including the metabolism boost after the exercise is finish..
However, u burn muscle/protein when doing the higher intensity cardio. for a bodybuilder doing a show, whats the best pay off? i think retaining the muscle, while still burning significant fat.
do u ever see ROnnie coleman sprinting in his training or going high intensity cardio, i also dont think jay cutler does higher intensity cardio either (i am sure they dont, but maybe someone else knows that they do).