LOL it must be frustrating when you get competing advice from so many people, all of whom obviously know the subject. Here's my take, to keep things confusing...
First, I agree that strength training and aerobic cardio are best done on different days. On a day you're doing strength/power work, which gets your body to try to maximize for IIb fibers and maximum CNS engagement in a short time, doing aerobic cardio which gets your body to maximize for type I fibers and long-haul endurance makes no sense. However, HIIT is extremely compatible with strength training. Do your strength training first, then a (say) 5 minute HIIT finisher ... HIIT training reinforces your strength work in that HIIT also trains strength, speed, and power, and hits the aerobic and anaerobic cardio systems to boot. Save your aerobic cardio for a different day ... or consider minimizing your aerobic cardio and seeing if your fat loss doesn't accelerate with an all-HIIT program (I know that made a big difference for me, plus HIIT is more consistent with my goals as a fighter).
A bit more on HIIT, this article also has a good bibliography: www.cyclecambridge.com/Smith-HIIT.pdf Some of the questions about "which burns more calories" is addressed in this paper
First, I agree that strength training and aerobic cardio are best done on different days. On a day you're doing strength/power work, which gets your body to try to maximize for IIb fibers and maximum CNS engagement in a short time, doing aerobic cardio which gets your body to maximize for type I fibers and long-haul endurance makes no sense. However, HIIT is extremely compatible with strength training. Do your strength training first, then a (say) 5 minute HIIT finisher ... HIIT training reinforces your strength work in that HIIT also trains strength, speed, and power, and hits the aerobic and anaerobic cardio systems to boot. Save your aerobic cardio for a different day ... or consider minimizing your aerobic cardio and seeing if your fat loss doesn't accelerate with an all-HIIT program (I know that made a big difference for me, plus HIIT is more consistent with my goals as a fighter).
A bit more on HIIT, this article also has a good bibliography: www.cyclecambridge.com/Smith-HIIT.pdf Some of the questions about "which burns more calories" is addressed in this paper
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