Final answer:
The intensity for stage 2 will depend on the heart rate achieved during the first stage. If the heart rate at the end of the 1st stage is 90-100 bpm, it indicates a moderate intensity level.
Step-by-step explanation:
The intensity for stage 2 can be determined by looking at the steady state heart rate (HR) at the end of the 1st stage. If the steady state HR is 90-100, it indicates a moderate intensity level. In terms of percentage of maximum heart rate, this would be around 50-60%.
To calculate the intensity for stage 2, it's important to consider the target heart rate range for maximum cardiovascular benefit. According to the information provided, individuals are advised to stay within a target heart rate range of 120-160 bpm. This corresponds to approximately 60-80% of maximum heart rate.