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Nutrition Through The Life Cycle

7th Edition
Brown + 1 other
ISBN: 9781337919333

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FindFindarrow_forward

Nutrition Through The Life Cycle

7th Edition
Brown + 1 other
ISBN: 9781337919333
Textbook Problem
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After four years of experiencing amenorrhea, Tonya seeks medical care to help her become pregnane. She is convinced that her lack of menstrual periods is the cause of her infertility. Tonya’s height is 5 ft 5 in.; her weight is 107 pounds, which she has maintained for four years (she previously weighed 121 pounds). Her FSH and LH levels are both abnormally low, and she is not ovulating. When the importance and methods of weight gain are explained to her, Tonya agrees to gain some weight. After she regains 7 pounds, her LH level is normal, but her FSH level is still low, and the luteal phase of her cycles is abnormally short. When her weight reaches 119 pounds, Tonya’s LH and FSH levels, ovulation, and menstrual cycles are normal.

Can you determine Tonya’s body fat content based on her BMI?

Summary Introduction

To determine: Person T's body fat content based on her BMI.

Introduction: Body mass index (BMI) is obtained by dividing weight (in Kg) by the square of height (in m). The following criteria are related to various values of BMI.

1. BMIs <18.5 are considered underweight,

2. BMIs of 18.5-24.9 normal weight and 25-29.9 overweight,

3. BMIs of 30 and higher under obesity.

Explanation

Person T is 5 ft. 5 in.(1.65 m) and her weight is 107 pounds (48.53 kg). Her previous weight was 121 pounds (54.88 kg). Both FSH and LH levels are low, and she cannot ovulate. After some time, she regains 7 pounds and her LH level becomes normal, but her FSH level is still low, and the luteal phase of her cycles is abnormally short. When her weight reaches 119 pounds (53.97 kg), her LH and FSH levels, ovulation, and menstrual cycles are normal...

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