9. Tabata Jump Squats
This four-minute miracle drill burns major calories both during a workout and after. In an Auburn University at Montgomery study, participants who did eight rounds of all-out jump squats—20 seconds of hard work, separated by 10 seconds of rest—burned 13.4 calories per minute and doubled their post-exercise metabolic rate for at least 30 minutes.
10. Battling Ropes
In a recent College of New Jersey study comparing various workout styles, battling-rope exercises came in first in terms of total oxygen consumption and an average calorie burn of 10.3 calories per minute. It’s the easiest and most effective way to drop 20, 30, or even 50 pounds (and flatten your belly forever).