Basically, the individual lifestyle approach to health promotion blamed the individual for their poor health. It was thought bad health was a result of poorly made decisions and it was strictly up to the person to make a change.
This failed to explain WHY people made bad health choices in the first place, so the "New Public Health Approach" was brought in. The difference is that it takes into account all the different factors that contribute to a persons health; such as access to health care facilities, lack of education, public policies etc etc. (This is where the Ottawa Charter and Jakarta Declaration come in, where these things are addressed). This new approach also looked at health holitically (spiritual, mental, emotional and physical health as opposed to just physical).
Health promotion now works accordingly to the new approach, it no longer blames individuals, but helps them make better decisions and attacks whatever causes people bad health or to make bad decisions (eg, no smoking in clubs -- healthy public policy, warning on cigarette packets). The impact of this, obviously, is better health for the population. More successful than the invidual lifestyle approach.
That's basically it, hope I helped.
