Learning how to calculate calorie deficit can help you increase muscular definition, enhance performance and improve overall quality of life.
Whether transitioning from a bulking phase or taking the first step to improve muscular defintion, cutting calories and losing weight is not an easy task. If you're a warrior on a mission to cut calories, one of the first steps is to determine how many calories you need remove from your nutrition intake. Continue to read on to learn how to calculate calorie deficit.
Step 1: Track current weight and height
Write down your most recent weight and height in pounds (lbs.) and inches.
Step 2: Calculate your estimated basal metabolic rate (BMR) using the Mifflin-St. Jeor Formula.
Basal Metabolic Rate is the rate of energy expended while at rest; in other words, it’s the amount of calories burned to maintain vital functions such as breathing, blood flow, digestion etc.
Men BMR = 10 x weight kg + 6.25 x height cm – 4.92 x age yrs. + 5
Women BMR= 10 x weight kg + 6.25 x height cm – 4.92 x age yrs. - 161
Step 3: Calculate Total Daily Energy Expenditure
Total daily Expenditure determines how many calories your body burns in the day; keep in mind it does not state how many calories you need to lose weight. To calculate your TDEE, multiply your BMR by your activity multiplier from one of the formulas below:
TDEE Sedentary – BMR x 1.2 (little or no exercise, desk job)
TDEE Light Activity – BMR x 1.375 (light exercise/sports 1-3 days/wk)
TDEE Moderately Active – BMR x 1.55 (moderate exercise/sports 3-5 days/wk)
TDEE Very Active – BMR x 1.725 (difficult exercise/sports 6-7 days/wk)
TDEE Extremely Active – BMR x 1.9 (advance daily exercise/sports & physical job or 2x day training 6-7 days/wk
Total Daily Energy Expenditure (Maintenance Calories) = BMR x Activity Factor
Step 4: Adjust calorie intake for weight loss
Once you know your maintenance calories, we can calculate the calorie intake level needed for weight loss. Remember, 1lb. of body weight is about 3,500 calories and the goal is to aim for 1-2 lbs. of weight loss per week:
500 calorie deficit per day = 3,500 calorie deficit per week
EXAMPLE
Moderately active, 35 year old, male warrior who stands at 5'5 (60 in.) at 150lbs.
Step 1: Calculate BMR:
Men BMR = (10 x 66.96 kg) + (6.25 x 134.4 cm) – (4.92 x 35 yrs.) + 5
Men BMR = 669.6 kg + 840 cm + 172.2 + 5
Men BMR = 1,686.8
Men BMR = 1,686.8 calories. This is the amount of calories burned and your body requirements to maintain vital functions.
Step 2: Calculate TDEE:
TDEE Moderately Active = 1,686.8 x 1.55
TDEE = 2,614 total daily calories burned throughout the day with exercise (maintenance calories)
Step 3: Calculate Deficit Calories:
Calorie Deficit = 2,614 maintenance calories - 500 calories
Calorie Deficit = 2,114 calories should be consumed per day to lose 1lb. of weight per week.
References:
Disclaimer: All information presented and written within this article are intended for informational purposes only. You should not rely on this information as a substitute for, nor does it replace, professional medical advice, diagnosis, or treatment. If you should choose to follow or participate in any workout, program or practice, you do so voluntarily and do not hold Initial Mile and it's founder responsible for any cause of injury or death. If you have any concerns or questions about your health, you should always consult with a physician or other health-care professional.
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