Buzz
While diet typically plays a more crucial role in weight reduction than physical activity, findings indicate that Biggest Loser participants who successfully maintained their weight loss had to engage in significant amounts of exercise. But for the average person, does this hold any relevance?
According to Yoni Freedhoff, an obesity expert unrelated to the study, likely not. Most individuals who achieve weight loss don’t rely on extreme, short-term programs broadcasted nationally. Many former contestants now work as motivational speakers or fitness trainers, he notes, requiring them to maintain intense exercise routines to sustain their livelihoods. In contrast, most people face the challenge of fitting exercise into their schedules after fulfilling work obligations.
The study involved researchers—including an obesity specialist who had also been a Biggest Loser contestant—dividing 14 participants into two categories. One group had largely regained their weight over six years, while the other had maintained significant weight loss. On average, the latter group was 81 pounds lighter than their starting weight. (The initial average weight loss was 120 pounds.)
Researchers employed methods such as urinalysis to measure (not just estimate) real-time calorie intake and expenditure. Unsurprisingly, those who maintained their weight loss were exercising far more than those who didn’t. It’s well-documented that individuals—including Biggest Loser contestants—experience a slower metabolism after substantial weight loss. While dietary adjustments may be key to losing weight, sustaining it appears to rely more heavily on physical activity.
The calorie expenditure of successful contestants equaled 80 minutes of moderate activities, such as walking, or 35 minutes of intense workouts. Daily. “While everyone has the same 24 hours, not everyone will allocate their time identically,” Freedhoff explains. “Dedicating 35 to 80 minutes daily to exercise is unrealistic for the majority of people.”
However, this doesn’t render exercise futile. Freedhoff stresses that any level of physical activity you can incorporate benefits your health, regardless of its impact on weight loss or maintenance. The same applies to healthy eating, adequate sleep, and moderating alcohol consumption. So, engage in exercise—but do it for your well-being, not because a television program dictates it.
