So what's necessary for these near miraculous achievements? Prior to entering the show, the participants watched 5-6 hours of TV daily although, to their credit, they also exercised approximately 120 minutes each week, close to standard recommendations. During the show, their TV & computer time dropped down to just 1-2 hours/day (that excludes me!) while they engaged in 4 hours of exercise daily: 1 hour of intense aerobics, 2 hours of moderate aerobics, and 1 hour of intense resistance training . In other words, exercise became their part-time job! And while doing so, they consumed at least 70% of their estimated resting daily energy expenditure.
Newsweek recently published an article suggesting that obesity isn't as simple as calories in vs calories out . Apparently, exercise isn't as important as eating the appropriate foods while avoiding high fructose corn syrup. While I agree that refined sugars and high glycemic foods should best be left off the grocery list, I can't help but believe that exercise is still a necessary component of a healthy weight loss program. Now, if we could only set our priorities to make the time & effort these Biggest Loser participants did.