If kevin performs self-monitoring during a cardiovascular routine, he may be concerned with
1.losing weight
2.the intensity of his workout
3.his goal setting
4.his lack of habits

2. the intensity of his workout

Explanation:

Self-monitoring how much the body is working on in a physical exercise can help to adjust the intensity of the activities. For this reason, we can say that when Kevin performs self-monitoring during a cardiovascular routine, he may be concerned about the intensity of his training.

In addition to monitoring the intensity of exercise, another very important aspect of physical training that must be monitored is the training load. The training load differs from the intensity in that the training load considers, besides the feeling of effort, the time of the effort accomplishment.