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Originally Posted by 0311
For cardio, I've seen both low intensity/high duration and high intensity/low duration recommended. In my own experience, and according to the required reading of UD2.0 and Cut Diet, I'd lean towards 40-60 minutes worth of low to moderate intensity cardio.
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Here's an answer from a Q and A with By Chuck Rudolph, Med, RD
Marc Lobliner and Derek Charlebois: Article found
here
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Q. I have heard conflicting information on which cardio is better while dieting, high-intensity or low-intensity. I also heard that you put a lot of your athletes looking for fat loss on programs that consist of long-duration, low-intensity cardio. I am trying to lose fat and currently weight train 5 days per week. Which should I do?
A. Cardio: Why we recommend it
While we believe that diet is 90% of getting lean and reducing bodyfat, we still recommend 30-45 minutes of cardio (130-150 Heart Rate which is equivalent to 55-65% VO2 Max age/gender pending) four to five days per week depending on body type and bodyfat percentage while on the Cut Diet. Cardio is essential for supplying oxygen to your muscles for maximum growth. Our entire approach to dieting is based on muscle preservation. Too much cardio or cardio at a high level of intensity will eat at muscle tissue. This is counterproductive because we are trying to lose fat and keep as much muscle as possible. Long duration cardio is more geared toward cardiovascular training (at or above 80% VO2 Max). Therefore, lower intensity cardio increases fat oxidation (burns bodyfat) and does not catabolize (waste) nearly as much muscle as high intensity cardio, especially on a reduced calorie/low carbohydrate diet. We usually recommend light walking on a treadmill with an incline.
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