Final answer:
The Just Right Challenge components for clients are to increase the intensity and frequency of the exercises and alter the exercise target to promote muscular strength and endurance in a balanced and challenging workout routine.
Step-by-step explanation:
The three components you'll use to create a Just Right Challenge for your clients are: increase the intensity, increase the frequency, and alter the target. These components are crucial when designing an exercise program that improves both muscular strength and muscular endurance. Muscular strength is defined as the ability of a muscle to exert force during a contraction. On the other hand, muscular endurance refers to a muscle's capability to continue contracting over an extended period without excessive fatigue. Exercises can be categorized into three types based on their effects on the body, and tailoring these components helps in achieving specific fitness goals while keeping the workout challenging yet achievable.