My Journey- Good and Bad!

Various stuff

December 18th, 2007

DAILY CALORIC NEEDS

Knowing your Daily Calorie Needs is more than knowing how many calories your body needs for its basic physiologic functions (known as your Resting Metabolic Rate).It’s also important to know how many calories your body needs to maintain certain daily activities. By combining your resting metabolic rate and your daily activity level, you will get the total number of calories your body needs during the day.

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RESTING METOBOLIC RATE (RMR)

How many calories does your body use when you’re doing absolutely nothing?Your Resting Metabolic Rate (RMR) is the minimum number of calories your body needs to support its basic physiological functions, including breathing, circulating blood and all of the numerous biochemical reactions required to keep you alive. Your RMR is generally 60-75% of your total daily caloric expenditure.

Knowing the minimum number of calories your body needs is important if you’re trying to lose, gain or maintain your current weight. To calculate the number of calories your body uses during an average day by applying an activity level…try our Daily Calorie Needs calculator.

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BODY MASS INDEX (BMI)

Body Mass Index (BMI) is an index used to estimate one’s body fat.BMI indicates your health risks by comparing your height and weight. Males with a BMI above 27.8 and women over 27.3 are considered overweight. Males with a BMI less than 20.7 and women below 19.1 are classified as underweight.

There are limitations to BMI so it’s important to realize that it is only an estimation of body fat. People who have valid reasons for maintaining weight outside of normal ranges (pregnant or breast feeding women, competitive athletes, body builders and people who are chronically ill) may experience inaccurate BMI values. People with a high percentage of muscle mass may appear overweight using BMI because muscle weighs more than fat. 24 Hour Fitness® club members can get a more accurate measurement by asking a Personal Trainer to schedule a fitness assessment, which includes measuring your BMI.

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http://www.nbc.com/The_Biggest_Loser/dietcenter/24_hour_fitness/BMI.shtml