Final answer:
Participation in activities can be measured through various exercises and self-testing activities can help achieve fitness levels.
Step-by-step explanation:
1. To measure participation in activities, activities such as jogging in place, triceps stretch/under cuff stretch, forward and backward neck pivot, front cuff stretch, arm and shoulder stretch, back cuff stretch, shoulder stretch, sideward quadriceps stretch on a wall can be given.
2. Self-testing activities can help in achieving your level of fitness. Some examples of these activities include timed runs, push-ups, sit-ups, and flexibility tests. These activities can be done by setting specific goals, recording and tracking your performance, and gradually improving over time.
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