You shouldn't base this on one study of 262 people.
What it looks like is the people with rapid weight loss made a more "intense" change in lifestyle. So the science behind losing the weight might not be justified, but the mental side of it might be better. It takes more change, hard work and sacrifice to lose more weight faster, therefore perhaps these women had more of a positive change on their lifestyle compare to the women that lost weight more moderately.
On Science: Rapid Weight Loss Leads To Extra Thinness
You shouldn't base this on one study of 262 people.
What it looks like is the people with rapid weight loss made a more "intense" change in lifestyle. So the science behind losing the weight might not be justified, but the mental side of it might be better. It takes more change, hard work and sacrifice to lose more weight faster, therefore perhaps these women had more of a positive change on their lifestyle compare to the women that lost weight more moderately.
Hope this makes sense.