What is the formula to calculate caloric needs?
What is the formula to calculate caloric needs?
To determine your total daily calorie needs, multiply your BMR by the appropriate activity factor, as follows:
- If you are sedentary (little or no exercise) : Calorie-Calculation = BMR x 1.2.
- If you are lightly active (light exercise/sports 1-3 days/week) : Calorie-Calculation = BMR x 1.375.
How many calories should I eat a day Harris Benedict?
The original Harris–Benedict equations published in 1918 and 1919. The Harris–Benedict equations revised by Roza and Shizgal in 1984. The 95% confidence range for men is ±213.0 kcal/day, and ±201.0 kcal/day for women.
How do I calculate my basal calorie needs?
Your basal metabolism rate is produced through the following basal metablic rate formula:
- Men: BMR = 88.362 + (13.397 x weight in kg) + (4.799 x height in cm) – (5.677 x age in years)
- Women: BMR = 447.593 + (9.247 x weight in kg) + (3.098 x height in cm) – (4.330 x age in years)
How accurate is the Harris Benedict formula?
Of the predictive equations tested, the Harris-Benedict equation (mean difference: -14.8 kcal/day, RMSPE: 195.8 kcal/day, mean % difference: 0.1%) was the most accurate and precise, but accuracy in prediction of the equation were only 35.7%.
How do you calculate vo2 caloric expenditure?
Your client is exercising at a VO2 of 2 L/min. Multiply 2 L/min by 5 kcal/L. Your client is burning 10 kcal/min. To get total kcal burned during exercise, simply multiply 10 by the total number of minutes of exercise.
How do you calculate your basal metabolic rate?
BMR = 655 + (9.6 X weight in kilos) + (1.8 X height in cm) – (4.7 x age in years).
- Notes: 1 inch = 2.54 cm. 1 kilogram = 2.2 lbs.
- Example of BMR: You are 32 years old. You are 5 feet 4 inches tall (162.5 cm)
- Notes: 1 inch = 2.54 cm. 1 kilogram = 2.2 lbs.
- Example of BMR: You are 25 years old. You are 6 feet tall.
What calorie formula is the most accurate?
The Harris-Benedict Formula The Harris Benedict equation is a calorie formula using the variables of height, weight, age, and gender to calculate basal metabolic rate (BMR). This is more accurate than calculating calorie needs based on total body weight alone.
Which calorie equation is most accurate?
Mifflin-St Jeor equation
Nowadays, the Mifflin-St Jeor equation is believed to give the most accurate result and, is therefore what we used in this calculator. This BMR formula is as follows: BMR (kcal / day) = 10 * weight (kg) + 6.25 * height (cm) – 5 * age (y) + s (kcal / day) , where s is +5 for males and -161 for females.
How do you calculate calories of heat absorbed by water?
The heat absorbed is calculated by using the specific heat of water and the equation ΔH=cp×m×ΔT. 4. Water is vaporized to steam at 100oC. The heat absorbed is calculated by multiplying the moles of water by the molar heat of vaporization.
