Re: Cardio/Resistance Question
There is no such thing as "cardio" Cooper's "aerobics" was and is bullshit. All exercise, if it's meaningful, i.e., if it provides stimulation to the muscular/skeletal system simultaneously stimulates the cardio/respiratory system (by meaningful I mean something other than sleep or rest).
As the muscular/skeletal system is more and more taxed, for that taxing to take place, the heart and lungs and associated metabolic systems are recruited. The duration of time over which those systems can be recruited varies as a function of their exposure to prior stimulation.
So... if you want to enhance your cardio/respiratory systems response to muscular/skeletal exercise, then up the intensity of the exercise. You can up the intensity by upping the duration, upping the frequency, or, by directly upping the resistance, as in strength training. Strength training is by far the most efficient way to improve the C/R's ability to support the intensity of the exercise, provided that it is specific for efficiency, i.e., the biggest bang for one's buck.
Don't fall into the useless trap of believing or thinking that "burning calories" is at all important in terms of fat loss. It isn't. Take a look in the gym and see the fatso's, pumping away on the freaking exercycles, C2 rowers, treadmills: they've been there every Sunday for years, and they're still fatsos.Nutritional composition at intake is what matters.
useful resources:
www.wheatbellyblog.com
www.bodybyscience.net
www.crossfit.com (just be aware of the real potential for significant injury in this method)
Tabata I, Nishimura K, Kouzaki M, et al. (1996). "Effects of moderate-intensity endurance and high-intensity intermittent training on anaerobic capacity and VO2max". Med Sci Sports Exerc 28 (10): 1327–30. doi:10.1097/00005768-199610000-00018. PMID 8897392.