Discussion Board Assignment: Version 2A

Show all of your work details for these calculations. Please review this Web site to see how to type mathematics using the keyboard symbols. Body Mass Index

The United States is becoming more health-conscious, and as a result, the problem of obesity has gotten more attention. The body mass index (BMI) relates a person’s height and weight, and it is often used to determine if someone is overweight. The following table tells the weight status for a given BMI.

BMI Weight Status

Below 18.5 Underweight

18.5–24.9 Normal

24.9–29.9 Overweight

29.9 and above Obese

The BMI is calculated using the following formula:

703 × ? BMI =

ℎ2

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where w is the weight in pounds and h is the height in inches. Solving this formula for h, we see that h = sqrt[703w / BMI] or ℎ = 703BMI? Using the Internet, AIU’s library, or another research source, find the weight of your favorite celebrity. This could be a movie or television personality, athlete, or a politician. You may also use yourself.

I am using my own weight 200 lbs Using the weight you found in Question 1, determine the height the celebrity (or yourself) would need to be to fall into each of the four weight status categories listed in the table. In other words, select a BMI less than 18.5 (any value), and find h. Then, repeat using a new BMI in each range. Show all of your work for each of these calculations. Chosen BMI Value Calculated Height (in.)

Underweight 18.49 81.89 inches

Normal 24.9 70.57 inches

Overweight 29.9 64.40 inches

Obese 35 64.29 inches

h = √703w/BMI hu = √(703(200.00))/18.49 = √123988.11/18.49 =√6705.6846 = 81.89” for underweight hn= √(703(200.00))/24.9 = √123988.11/24.9 = √5646.59 = 70.57” for normal hov = √(703(200.00))/29.9 = √123988.11/29.9 =√4702.3411= 64.395” for overweight hob = √(703(200.00))/35 = √123988.11/35 = √4017.1428 = 59.52” for obese

Using your chosen BMI values and the corresponding four heights calculated in Question 2, and using Excel or another graphing utility, draw the graph of your celebrity’s heights as a function of the BMI. (The function being graphed is h = sqrt(703 × w / BMI), so BMI is the independent [or horizontal] variable.) Insert the graph into a Word document, and attach that Word document to the DB thread, or paste your graph into the DB thread.

Using the Internet or other library resource, find the actual height of your celebrity.

My height is 6’0 Using the height found in Question 4, calculate the person’s actual weight status (underweight, normal, overweight, or obese) using the original BMI formula above.

BMI for myself = BMI = 703w/h² = (703(200.00))/69² = 29.53 which puts me Overweight

What would be the height range (minimum and maximum heights) for your celebrity to be in the normal weight status? In other words, based on your celebrity’s weight, what would be the heights of the celebrity at BMIs of 18.5 and 24.9? (Show these calculations.) h = √703w/BMI = √(703(200.00))/18.5 = 81.87” (maximum)

h = √703w/BMI = √(703(200.00))/24.9 = 76.00” (minimum)

Based on the celebrity’s appearance, would you consider him or her to actually be in the weight status that this formula says based on his or her actual height and weight and considering his or her other physical characteristics?

Why or why not? Think about why there may be differences in your calculations and the actual figures.

No I do not feel or look over weight so I do not really go by the bmi. I feel that this does not concern me, if I drop to the weight this wants me to be I will look sick. The BMI formula was created by a Belgian statistician (not a physician), Lambert Adolphe Quetelet, in about 1832. Quetelet was trying to determine the “average” person’s weight relative to his or her height. His “Quetelet index” (later known as the BMI) was developed using height and weight data of Europeans in the early 1800s. Do you think that BMI is a fair indication of a person’s weight classification today? Why or why not?

No It does not seem fair to me, how can we really say whats right and what calculations and what race is this going by. Many of us who are big or small, we get out structure from genes which is in our dna, no matter how much exercise some do may never be able to lose weight even if they are eating healthy, When I was in the army there were some big men and even with bootcamp and 8 hours of exersice still couldn’t lose weight, so I feel that the bmi is

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biest.

According to data collected by the Centers for Disease Control (CDC) National Health and Nutrition Examination Survey III, the following quadratic functions approximately represent the median BMI values for men and women in the United States, where x is their age (Halls, 2008; Halls, 2008): Men: BMI = −0.0031?2

+

0.3256? + 20.2085 Women: BMI = −0.0036?2 + 0.3754? + 19.4353 For your celebrity’s age, calculate the median BMI from the appropriate quadratic function above. Is your celebrity’s actual BMI over or under this calculated median value? (Show all of your work.)

BMI = −0.0031?2 + 0.3256? + 20.2085

BMI = −0.0031(42)2 + 0.3256(42) + 20.2085

BMI = - 5.4684 + 13.6752 + 20.2085

BMI = 39.3521 = 26.04 which puts his weight status Overweight

BMI for myself = BMI = 703w/h² = (703(200.0))/69²

I am over the calculated median. After studying BMI, why do you think that BMI is so widely used by the federal government, health industry professionals, and insurance companies as a measure of a person’s overall health?

BMI is used to determine a person health.

Summarize your findings in writing using proper style and grammar.

The bmi is used all over the world to determoine weight and to show people where we should be.

Which intellipath Learning Nodes helped you with this assignment? All of them kind of helped me.