"A lot's changed in the last 15 years or so in terms of pre contest prep for bodybuilding shows. One of the new mainstays is cardio. The mantra is; cardio burns fat so it should rip you up. But does it? My experience is that there is a happy medium to be followed and it's truly a fine line. Don't do enough and you wont be in shape (possibly...there's always the right diet which can get you there with almost no cardio) Do too much and your muscles lose that "hard" look and lack the "pop" and eye catching roundness.
I recently worked with Troy Alves who won the Europa pro show and he did far less cardio then earlier in the year where he was 11th in the Ironman. How did he do it? He did cardio on the right days, at the right intensity and allowed a better diet to strip away the body fat. The end result; his muscles had that "pop" that gave him an edge over the competition.
I am a believer in less food and less cardio. Its sort of the opposite of conventional thinking; more cardio and more food. ... He (Troy) was eating about 2000 calories a day."