IB Evaluating BMI & Lipids
Lipids make up an important part of the human diet as they are energy dense molecules. It is actually essential to have a percentage of body weight be composed of fat for both men and women, approximately 14-24% in men and
21-31% in women1. Moving below or above can be dangerous to one’s health. One of the most often discussed national topics in the media is the problems of obesity in America. Obesity can be measured by a formula called body mass index that uses an individuals mass in kilograms and height in meters or by a nomogram, seen below.
Calculated values can be compared to the following chart to determine whether a person’s body mass is at a healthy level. In this activity, you will calculate your own BMI, compare it (anonusemly) it to other members of the class and evaluate some of the scientific evidence for the threats of excessive consumption of trans fats and saturated fatty acids. Objectives
● Application: Scientific evidence for health risks of trans fats and saturated fatty acids.
● Application: Evaluation of evidence and the methods used to obtain the evidence for health claims made about lipids.
● Skill: Determination of body mass index by calculation or use of nomogram.
Part A: Calculation of BMI
Directions
:
1. Determine your weight and height using the scale and rulers in the classroom.
2. Calculate your BMI using the following online calculator from the
National Heart, Lung, & Blood Institute
.
3. Turn in your BMI data to this form .
4. Select BMI and one other sets of data to graph from this spreadsheet by creating an X-Y scatter plot graph with BMI values and another variable of your choosing. Your graph should have a correlation test between the two variables and be correctly titled and labeled. Save your image as an image and upload/insert it here
(click here for instructions for how to do this).
Part B:
Evaluation of Evidence
Numerous studies have been conducted to evaluate the connection of health risks (coronary heart disease) and fats, particularly trans and saturated fats. Some studies suggest a positive correlation between consumption of these fats and CHD while others do not.
Directions
:
1. Open and use
Google Scholar
; Google Scholar is a way to search for primary literature source.
2. Find a primary literature source that examines the effect of either trans fats or saturated fatty acids on coronary heart disease (CHD). Your source needs to be a published study from a scientific journal.
3. Use
EasyBib
to create a MLA citation for your selected article; write it below.
1
Perry, Marc. "
Ideal Body Fat Percentage Chart: How Lean Should You Be
?"
Built Lean.com.
N.p., 11 Oct. 13. Web. 04 Aug. 2014.
1
4. Summarize the study, evidence (include data in your summary), and findings/conclusions of the
