Final answer:
The statement is true. For females, a healthy body fat percentage ranges from 20% to 30%, and maintaining this range is crucial for overall health.
Step-by-step explanation:
The statement that Sophie's total body fat is 30%, which places her in the healthy body fat range, is true. According to medical standards, the optimal fat content for females is between 20% and 30% of their total weight. This range is essential for reproductive functions and is influenced by hormone levels, physical activity, and age.
Techniques for measuring body fat content can vary, with the skin-fold test using calipers as one of the simplest and noninvasive methods. It should be noted that body fat distribution and the associated health implications can vary significantly between individuals, influenced by hormones, genetic factors, and lifestyle.
Maintaining a healthy body fat percentage is crucial for overall health, as excess body fat accumulation, or obesity, is linked with numerous medical conditions like diabetes and heart disease.