Answer:The FITT principle is a helpful guide in creating an effective fitness plan because it gives structure and balance to your workouts. FITT stands for Frequency, Intensity, Time, and Type, and each part plays an important role in improving fitness safely and efficiently.Frequency is how often you work out. It helps you stay consistent. For example, exercising 3–5 times a week helps you build a habit and improve over time.Intensity is how hard you work during exercise. It makes sure you're pushing yourself enough to make progress, but not so much that you get hurt.Time refers to how long your workouts last. This helps you stay focused and make sure you're doing enough to see results. A good workout might be 30–60 minutes depending on your goal.Type means the kind of exercise you do, like running, weightlifting, or yoga. It keeps your workouts interesting and helps you target different areas of fitness like strength, endurance, or flexibility.By adjusting each part of the FITT principle, you can make a fitness plan that matches your goals, fits your lifestyle, and avoids boredom or injury.