59. Based on the information presented in the President's Challenge Standards, which of the following statements is true concerning the body mass index (BMI) of boys and girls?
Answer: A
BMI increases as children get older.
As children develop, their body mass index (BMI) tends to increase, reflecting the natural growth patterns associated with aging. This trend is consistent across both boys and girls.
A) BMI increases as children get older.
This statement is correct. Research indicates that as children grow, their body composition changes, leading to an increase in BMI. This increase is a normal part of physical development as children transition through different growth stages.
B) BMI decreases as children get older.
This statement is incorrect. While some children may experience fluctuations in BMI during certain growth phases, the general trend shows that BMI typically increases as children age, particularly during periods of rapid growth.
C) Boys have a lower BMI than girls.
This statement is misleading. While there may be variations in BMI between boys and girls at certain ages, it is not universally true that boys have a lower BMI. Factors such as growth spurts and body composition changes can lead to different BMI values throughout development.
D) There is no difference in BMI between boys and girls.
This statement is also incorrect. Although boys and girls may have similar BMI values at some points in their development, differences can emerge due to variations in growth rates, body composition, and physical activity levels. Therefore, it is not accurate to claim there is no difference.
Conclusion
The assertion that BMI increases as children get older is supported by developmental research, making option A the correct choice. Other options fail to accurately reflect the established trends in BMI changes during childhood, reinforcing that growth and age are critical factors in understanding BMI variations between children.