High intensity exercise burns energy stores that are quickly broken down, like glycogen. Fat stores take time to break into and are done through non-aerobic activities.

Low impact activities like walking are also a lot easier on a 250 pound body.

I disagree. Even though walking burns fat at a higher percentage than glycogen, it's still burning a lot less calories than running or even doing HIIT. Even if glycogen is mostly burned during exercise above 70% intensity, it's still burning much more calories than walking, and even with the fat not being burned much the higher calories burned still makes the fat higher. Furthermore, the body conserves the energy source that it used during exericse and burns it's counter-part after exercise. Meaning, if fat was burning primarily during exercise then glycogen will be burned afterwards, and vice versa. That's why HIIT is so good because since it burns lots of glycogen during the exericse and since it raises your metabolic rate, insulin sensitivity, and FFA oxidation, the body burns mostly fat for up to 24 hours after exericse (if you do it hard enough).

Walking is definately fine to add to a cardio routine that's low impact but it shouldn't be the main cardio exercise. However, I can't speak for those people that have 230+ pounds of muscle - when low intensity cardio is preffered. But even at that point, walking really is only helping a little due to the fact that with all that muscle theyre burning fat like crazy all day because of all the muscle around. For those that aren't like them they shouldn't train like them.

Low impact activities like walking are also a lot easier on a 250 pound body.

i think that's proper bullshit.

Yes your heart does more work but you still will burn the fat cells for needed energy.
Jogging/running is better than walking becuase it is more intense = you will need to use up more energy stored in fat cells.

Just becuase the guy is 250lbs and 6% bodyfat (probably exaggerated figure anyway) does not confirm this theory to hold any substance

By the way the guy says he is 250lbs at 6% bodyfat, if he dropped 1/2% bodyfat and at 235lbs or so he would be good enough to compete at the Mr.O as long as he doesn't look like Gregg Valentino, so i doubt he is telling the whole truth.

High intensity exercise burns energy stores that are quickly broken down, like glycogen. Fat stores take time to break into and are done through non-aerobic activities.

Low impact activities like walking are also a lot easier on a 250 pound body.

he said either 6% or 8%, im guessing its 8. He said he was still cutting though. I started walking to all my classes. That is 4 sessions of a mile walk in each session. I will also do cardio in addition to that. I lift weights 3-4 times a week so that should help too. Working on the diet.

most people drastically underestimate their bf%. i doubt he's at 6% at this stage. that's very difficult to maintain. not to mention most testing methods are off by +/- 3% give or take.

and all this is not important. If this guy has 10% B/F at 250 lbs he's going to look good to about 99% of the people posting here.
All Agree?