The FITT principle stands for Frequency, Intensity, Time, and Type, and it's a framework for designing an effective exercise plan. Rachel's goal is to improve her body composition and reduce her BMI. In this context, she should aim for a well-rounded plan that incorporates both cardiovascular training and strength training, along with a balanced diet.
A. "She should add more cardiovascular training and weight training to her exercise routine and eat several low-calorie meals throughout the day." This option is a balanced approach. It suggests adding both cardiovascular training and weight training to her exercise routine, which is a good way to improve body composition. Eating several low-calorie meals can also be helpful for controlling calorie intake.
B. "She should increase her swimming workouts to five days a week and eat a high-calorie diet that equals 2,500 calories." Increasing the frequency of swimming may not be as effective as adding variety with weight training. Eating a high-calorie diet is not necessary for someone aiming to reduce their BMI and improve body composition.
C. "She should add a few days of weight training to her exercise routine and consume 4,000 calories a day." Adding weight training is a good idea, but consuming 4,000 calories a day is excessive and not aligned with her goal of improving body composition. It's important to have a balanced calorie intake.
D. "She should eat a high-protein, low-carbohydrate diet and add five days of weight training to her exercise routine." While adding weight training is beneficial, following a high-protein, low-carb diet is a specific dietary approach that may not be suitable for everyone. It's important to maintain a balanced diet, especially when engaged in regular exercise.
So, option A is the most appropriate choice for Rachel to properly apply the FITT principles for her goal of improving body composition and reducing her BMI.