It is defined as weight in kilograms divided by height in meters squared, or in terms of pounds and inches,. This measurement is commonly used to classify people into weight categories, according to the ranges given in Table 4 , which were published by the World Health Organization in Obesity: Preventing and Managing the Global Epidemic: Report of a WHO Consultation.
This is, of course, why the show has been so popular: So many Americans struggle with their weight and can relate to the contestants on the show. Figure 7. Evidence from the data set showing that a women contestants tend to be shorter than men and b taller contestants tend to weigh more.
The clustered bar chart in Figure 8 and corresponding Table 5 display the frequency or count of the different weight categories of contestants at the first weigh-in and the finale. The difference in the distributions reflects the dramatic transformation that contestants experience during the half-year.
Figure 8. Clustered bar chart of different weight categories at the first weigh-in and the finale. Table 5. Frequency of contestants in each weight category at the finale and the first weigh-in.
A couple points of interest: First, the only two contestants not in the obese category at the initial weigh-in were part of the first season. After the popularity of the first season, it seems the producers aimed for more dramatic weight loss in subsequent seasons more on this later. Second, of the two contestants to end the show in the underweight category, one was Rachel Frederickson, whom we discussed earlier.
So she is something of an extreme case in that sense. However, her final BMI of As discussed earlier, though the contestants of The Biggest Loser undergo a dramatic, life-changing transformation in a short time, such extreme weight loss is not necessarily healthy.
A New York Times article highlighted the results of a study that tracked Season 8 participants over the next six years. Thirteen of 14 contestants participating in the study regained some of the weight lost during the show. In fact, the average weight gain was 90 pounds! The study found that the metabolic rate of many of the contestants was permanently slowed as a result of the dramatic weight loss, and this made it extremely difficult for former contestants to maintain the weight they had achieved at the finale of the show.
Each has had his or her personal philosophy of exercising and a unique approach to motivating the contestants to put forth maximum effort in their daily workouts. A natural question is then: Is trainer effectiveness the same, or are there trainers who are more effective in helping the contestants lose weight?
This is due to contestants frequently training with different trainers over the course of one season. Additionally, eliminated contestants train by themselves at home. By focusing only on the percentage of weight lost during the first week, we can associate each contestant with a single trainer except for the cases when trainers paired up, which we treat as a separate different trainer. Table 6 gives the number of contestants for each trainer and Figure 9 displays comparative boxplots of the week one percentage of weight loss for the contestants by trainer.
Figure 9. Comparing week one percentages of weight lost for the contestants by trainer. If we examine Figure 9 , we can see the contestants trained by Anna, Jessie, and Kim typically achieved the lowest weight loss percentages during the first week focusing on the medians of the boxplots.
Out of these three trainers, the contestants trained by Jessie have the lowest median percentage of weight loss. Overall, it seems the percentage weight loss of contestants is related to the experience of their trainer. Anna, Jessie, and Kim have trained a tiny number of contestants as compared to Bob, Jillian, and Dolvett see Table 6 , and contestants of the former trainers tend to lose a smaller weight percentage than contestants of the latter trainers. Jennifer is an exception, however.
Experience also does not seem to matter when the trainers are paired. Although Brett and Cara have only jointly trained nine contestants, whereas 62 contestants have been jointly trained by Bob and Jillian, the weight loss percentage distributions for both trainer pairs are similar.
We may wish to determine if there is a correlation between the percentage of weight lost after one week and the percentage of weight lost at the finale. Figure 10 displays a scatterplot for these two variables. Figure Percentage of weight loss at finale vs. Comparing finale weight loss percentages for the seasons. The scatterplot shows a positive linear relationship between percentage of weight loss after one week and the percentage of weight loss at the finale; that is, contestants with a higher percentage of weight loss during week one tended to have a higher percentage of weight loss at the finale and contestants with a low week one percentage tended to have a low percentage at the finale.
It is interesting to compare the finale weight loss percentages over the seasons. Biggest Loser. The Biggest Loser. TV Show. Percentage weight loss: Episode Recaps Image. Biggest Loser Kournikova. Biggest Loser Bob. The Biggest Loser, Jillian Michaels. Kind of a lot of it. Contestants battle the bulge and each other in the competitive weight-loss series.
All rights reserved. Look at all the fat you have on you. Hibbard had the same experience. One production assistant told a contestant to take up smoking because it would cut her appetite in half.
Meanwhile, their calories were severely restricted. The recommended daily intake for a person of average height and weight is 1, to 1, calories per day. The contestants were ingesting far less than 1, per day. Hibbard says the bulk of food on her season was provided by sponsors and had little to no nutritional value. Such extreme, daily workouts and calorie restriction result in steep weight losses — up to 30 pounds lost in one week.
Benson later gained back all the weight and was disowned by the show. In , two contestants were hospitalized — one via airlift. Then add that exercise load on top of it. The joints of someone who has never exercised absorbing the force of pounds of jumping or bouncing? But they edited her to make her look lazy and bitchy and combative.
I was only sleeping three hours a night. It could be more than that, depending on what kind of footage cameras got for that period of time, Radar says. When she was finally able to, it was only for five minutes. Former contestants Marty Wolff and Amy Hildreth had an affair during the show and later married in , People reports. Instead, they were made to wear sports bras, Kai told XO Jane.
So while they enjoyed Christmas with their families, all the contestants sat in the White House with a security guard and a supervisor.
We were not allowed to leave the house, and we only got five minutes each to call our partners on Christmas Day. And we do our own laundry—just like home. The show wanted people to focus just on losing weight, so they were pretty much cut off.
When she got to her hotel, she was met by a production assistant, who checked her in and took away her key card. Producers just didn't show it all on air. If it was a challenge day, contestants would wake up and work out on their own, Nicole told A. Club that contestants would give an assistant a list of groceries and they would just buy it as long as it was healthy.
I had no concept of how expensive the food was. I didn't spend any money at all. I paid off my credit card bill.
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