The 35 hours to lose 1 lb. of fat is VERY questionable to me. There are ~3500 calories in a lb. of fat. Walking or running 1 mile consumes at LEAST 100 calories but usually closer to 120 calories. So they are walking 1 hour miles? Not all "cardio" is equal. I generally run 20 to 40 miles per week at 7:30/ mile pace. So my caloric burn is 120 calories per mile x 1 hour (8 miles) = 960 calories. So I could lose 1 pound…
I've never lost weight via cardio. I lost 30 lbs over 6 months without any exercise at all (too busy with school and would just forget to eat until the end of day.) 3 years later, I'm back up at the same weight. I worked out 5 days a week for 3 months (~1000 calories per day) and didn't lose any weight.
Completely anecdotal, but I think it's a good data point. I'm going to give the no cardio work out a shot.