Final answer:
The number of sets for an exercise should increase as long as the client's movement quality improves, ensuring a balance between challenge and maintaining good form.
Step-by-step explanation:
The number of sets a client should perform for a specific exercise should increase if his/her movement quality improves. This implies that over time, as the client's ability to perform the movement with good form and control gets better, the challenge can be progressively increased by adding more sets. It's essential to ensure that the increase in volume does not compromise movement quality, as this could lead to injury or ineffective training.
However, if the client's movement quality decreases or plateaus, it's important to assess whether they are experiencing fatigue, lack of motivation, or if the workout is too intense. Adjustments might include reducing the number of sets, focusing on recovery, or re-evaluating the overall training program. It's critical to balance volume and intensity to foster continual progress while maintaining safety and effectiveness in the workout regime.