Our expert says:
Did I write the article? Shape Magazine, maybe?
I think you may be taking a few articles and combining them - last year, Time magazine wrote a piece saying that exercise didn't help weight loss. I wrote a piece saying that in fact, it DID, and people who were serious about weight loss SHOULD consider both exercise AND diet. I think maybe the confusion is coming in because of the diet aspect, which is where many people falter.
They will exercise, but then either accidentally or on purpose, they over-compensate with their diets, and end up replacing the energy they burned. For example, they train for 45 minutes, and then grab a juice and a sandwich that they wouldn't have otherwise eaten, and the next thing you know, they gain weight. So that's maybe the point that you are thinking of, from those articles. People who combine exercise and diet tend to lose weight and keep it off better than those who just tackle one at a time.
So, in your case, you lose weight doing harder training, because you burn more energy, whereas the walking does not produce that same energy deficit. Also, harder exercise can switch off your appetite, and that helps too, obviously!
So don't worry, keep up what you're doing, if it works for you, and it's what you want, then just keep it going and enjoy!
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