well, why don’t they move? If one weights 100 lbs more than one should, then a small 20 min walk a day makes a diff — extend that after 2 weeks to 30 min, then after another 2 weeks to an hour’s walk, even a slow one, then get a faster pace.
That is metabolically true. And, effective.
I suppose, that they are exhasted.
For instnae. I have always done physical work, for work. Most of my friends are educated office dwellers. On the week ends, they want to get out and ‘do’ something. Me? I want to sit down and do nothing.
Fatties feel that they are in a work out, all the time. They are, or feel they are, exhausted.
Depending on their cardio vascular system, they may well be exhausted, or maxed out.
Regardless of fat, their body is signaling that they are a heart beat away from stroke ville, and to sit down. So, doing even more, may be, at a deeper level to them, against their body signals.