Your BMR is how many calories your body uses to function at a resting position. So when you use your BMR to determine your daily caloric requirements for a routine which is considered moderately active, the value is going to based on the fact that you will not lose or gain weight. It is a maintainence value. In your case, you have calculated a daily caloric requirement with moderate activity as 2880 calories. This is the value you would consume to maintain your current weight at this level of activity.
If you wanted to lose weight then these would be your options:
1. Decrease your caloric intake to 2380 per day and maintain your level of activity as moderate.
2. Maintain your caloric intake at 2880 per day but increase your level of activity to very active.
3. Decrease your caloric intake to 2380 per day and increase your level of activity to very active.
By decreasing your caloric intake by 500 calories per day (3500 total calories per week) you will lose one pound (minimum) in bodyweight. By introducing physical activity, primarily through cardio, you will increase the weight loss. The more you decrease your caloric intake and increase your level of activity, the more bodyweight you will lose. A loss of one to two pounds per week is considered healthy. It is important to lift heavy during this time to help maintain and define the mass which you currently have but expect to lose some body mass (muscle) during this time. Excessive weight loss over a short period will also mean an excessive loss in mass too, so take your time.
If you wanted to add mass then these would be your options:
1. Increase your caloric intake to 3380 per day and maintain your level of activity as moderate.
2. Increase your caloric intake to 3880 per day and increase your level of activity to very active.
3. Maintain your caloric intake at 2880 per day but decrease your level of activity to lightly active.
In this case, your level of activity would be based around resistance training (weights) and not cardio. Any type of cardio should be limited to warming up muscle groups prior to working out.
The above values are only general guides as the levels of activty (lightly active, moderately active, very active) are open to interpretation based on an individual's capabilities. For example, mederate exercise to me, after training for 7 years, is different to someone else who is just starting out. Play about with the numbers to find out what produces the best, long-term, results for you.
But get your BFP sorted out first.
___________________
KP--Fitness Basics
.