Final answer:
Adapting or grading an activity involves modifying it to match the client's maximum performance level. This helps prevent injury, optimize performance, and ensure progress towards goals.
Step-by-step explanation:
Adapting or grading an activity refers to modifying the activity to match the client's maximum performance level. It can be done by adjusting the intensity, duration, or complexity of the activity to ensure it is challenging but manageable for the client.
For example, if a client is unable to perform a high-intensity exercise, the trainer may adapt it by decreasing the intensity or providing modifications or alternatives.
Adapting or grading activities is important to prevent injury, optimize performance, and ensure the client continues to make progress towards their goals.