LMD, firstly thank you for giving this program a go. And secondly, there's no need to walk briskly when in the active recovery mode section of the exercise. As long as you're not sitting down, then moving around is what is needed and what is meant by active recovery. So please don't kill yourself during the 50 seconds of active recovery, but instead, use the time to prime... the beast within, for the next 10 seconds all-out effort!
I would not even think "lose" weight as much as I would focus on how I feel and look in my clothes first and foremost. Everyone is different depending on their metabolic engine. In addition, who says that you have to lose any weight? I mean, if you weigh a certain weight, and that weight is not excessive but has its ratio in favour of fat over muscles, then a recompositioning of weight (a shift in fat to muscle ratio in favour of lean bodyweight) may be what the doctor ordered.
The moral of the story LMD, is think looks and feel, before getting bogged down with the devil... ahhh, I mean weight scale!
Take care Champ, and remember the best weapon of all is consistency of effort and focus on goal.
PS: As far as the myth goes: your cells are more sensitive to insulin when you exercise as opposed to when you are sedentary. So what? Insulin is a double edged anabolic hormone, great for both muscle as well as fat gains. Eat and sit, and you will get fat. Eat and move and it would be a lot harder to get fat. What happens to your V8 engine when you switch it off after a nice drive around town? Does it instantly get cold simply because the pistons are not moving anymore, or does it take some time to cool down.
Fadi.