Which of the following indicates a moderate limitation to activities for individuals with asthma?

The indication of a moderate limitation to activities for individuals with asthma is represented by experiencing difficulty during physical activity. This reflects a compromise in the individual's ability to perform tasks that require exertion, which is a common characteristic of moderate asthma symptoms. When someone finds that physical activities cause discomfort or exacerbate their asthma, it suggests that their condition is not well-controlled, affecting their daily life and ability to participate fully in various activities.

In contrast, the other scenarios present different levels of asthma control. Exercising without issues indicates minimal limitation and good asthma management, while frequent trips to the emergency room suggest severe asthma that requires urgent care and is not characteristic of a moderate limitation. Engaging in sports competitively points toward a more favorable control of asthma, allowing individuals to perform at high levels without substantial restrictions. Thus, difficulty during physical activity accurately reflects a moderate limitation in this context.