The interesting NYT article below, about recent studies on the efficacy of intense interval training for weight loss and weight management, is well written. It clearly states that this study is preliminary, used a small sample of young males only, and so no long term conclusions for the general population should be assumed.
It also pointed out that these intense intervals (which many people erroneously conclude last 4 minutes or 7 minutes only) actually last 30 minutes alternating between short bursts of 100% intensity with longer intervals of low intensity activity in-between.
These conclusions are not new or earth shaking. Any track and field athlete or coach engaged in sprinting events could have told you most of what this study says. Read on.
NYTimes: How Exercise Can Help Us Eat Less
Strenuous exercise seems to dull the urge to eat afterward better than gentler workouts, several new studies show, adding to a growing body of science suggesting that intense exercise may have unique benefits.