To determine the target heart rate range for moderate intensity physical activity, we need to understand the typical percentages that correspond to moderate exercise intensity.
Moderate intensity physical activity is defined as 60-70% of an individual's maximum heart rate. This range is considered optimal for promoting cardiovascular health without overly straining the heart.
Considering the given options:
- Option A: 70-90%
- Option B: 75-85%
- Option C: 50-65%
- Option D: 60-70%
We can see that Option D, which ranges between 60-70%, aligns perfectly with the typical target heart rate range for moderate intensity physical activity.
Therefore, the correct answer is:
D. 60-70%
