BIOD 121 LEARNING PORTAGE NUTRITION MODULE 3 PROBLEM SET

BIOD 121 LEARNING PORTAGE NUTRITION MODULE 3 PROBLEM SET which person is at a greater risk for health issues related to being overweight or obese? Janet has a BMI of 28 and a waist to hip ratio of 0.95. Fred has a BMI of 28.9 and a waist to hip ratio of 0.78. - CORRECT ANSWER-Janet. Both have a BMI that indicates being overweight, but Janet has a more at-risk waist to hip ratio as her value is greater than 0.8. (Women should have a waist to hip ration less than 0.8 and males should have less than 0.9.) What range of BMI values represents a person with a healthy weight? - CORRECT ANSWER-18.5-25 What shape has the greatest health risks and why? - CORRECT ANSWER-Apple, because the fat in the abdominal tissues interferes with the liver's ability to use insulin. What are some factors that can influence an individual's BMR? (list at least 5) - CORRECT ANSWER-The BMR varies per person based on a number of factors such as; gender, lean body mass, body size, temperature, age, nervous system activity, caffeine, smoking, pregnancy, and diet. The following can be used to determine a person's body fat: - CORRECT ANSWER-calipers, underwater weighing, electrical resistance, direct calorimetry Anthropometrics estimates a person's percentage of fat by: - CORRECT ANSWER-using a caliper What range of BMI values represents a person that is obese? - CORRECT ANSWER- 30 Indirect calorimetry estimates a person's energy requirements by: - CORRECT ANSWER-comparing the amount of oxygen consumed with the amount of carbon dioxide expired Ignoring factors other than age, how does BMR change as a person grows older? What does this mean for their dietary intake? - CORRECT ANSWER-As we age our BMR declines by 1-2% per decade. If no change in diet or activity level occurs from one decade to the next, a slow weight gain will be the result. Calculate the Estimated Energy Requirement (EER) for a female who is 23 years old, 5 feet 4 inches tall, and 130 pounds with a sedentary lifestyle. Use BMR and an activity factor to find the EER. - CORRECT ANSWER-BMR Calculations: Male BMR = 66 + (6.23 x weight in pounds) + (12.7 x height in inches) - (6.8 x age) Female BMR = 655 + (4.35 x weight in pounds) + (4.7 x height in inches) - (4.7 x age) Physical Activity (PA) Estimates 1.2 = little to no exercise 1.375 = light exercise 1-3 days per week 1.55 = moderate exercise 3-5 days per week 1.725 = hard exercise 6-7 days per week 1.9 = hard daily exercise/job Female BMR = 655 + (4.35 x weight in pounds) + (4.7 x height in inches) - (4.7 x age) BMR = 655 + (4.35 x 130) + (4.7 x 64) - (4.7 x 23) Complete calculations in parenthesis first BMR = 655 + (565.5) + (300.8) - (108.1) BMR = 1413.2 EER = BMR x activity factor EER= 1413.2 x 1.2= 1695.84 EER= 1696 calorie