AFAA Personal Trainer Certification Practice Exam

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What is the consequence of an insufficient response to insulin in the body?

Increased muscle mass
Effective glucose metabolism
Diabetes mellitus
Improved endurance performance

The correct answer is: Diabetes mellitus

An insufficient response to insulin in the body leads to the condition known as diabetes mellitus. This situation occurs when the body either does not produce enough insulin or when the cells become resistant to the effects of insulin, resulting in high levels of glucose in the bloodstream. Over time, this can lead to various health complications, including damage to the cardiovascular system, kidneys, nerves, and eyes. In diabetes mellitus, the effective transport of glucose into the cells is impaired, and glucose metabolism becomes disrupted. Therefore, strength gains or improved endurance performance are not a direct consequence of insufficient insulin response; instead, they relate to overall metabolic health, which is negatively impacted by diabetes. Hence, recognizing the role of insulin in glucose regulation is crucial for understanding the development and management of diabetes mellitus.