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ENERGY (WHAT DETERMINES YOUR BMR? (ACTIVITY/ OCCUPATION (The more active a…
ENERGY
BASAL METABOLIC RATE (BMR)
Metabolism refers to the sum of al chemical reactions happening in the body.
The basal metabolic rate is the least amount of energy required to keep your body functioning when resting e.g. heart, lungs, brain.
Each person's BMR is different, depending on age, size and gender
WHAT DETERMINES YOUR BMR?
ACTIVITY/ OCCUPATION
The more active a person is, then more energy is required
PREGNANCY/ LACTATION
More energy is needed for the developing foetus and breast-feeding.
GENDER
Males have higher energy requirements than females.
CLIMATE
A warm climate requires less energy than a cold climate.
SIZE
The larger a person is, the greater the energy requirements.
STATE OF HEALTH
Due to a reduction of activity, less energy is required when ill.
AGE
Babies and young children need more energy than adults.
HOW TO BALANCE ENERGY INTAKE AND OUTPUT
To maintain your current body weight, the quantity of kilocalories you take in food must equal what you use in activity and body function.
If your intake of kilocalories is greater than your output, you gain weight, which can lead to obesity.
To lose weight, energy output should be greater than energy intake.
This is achieved by extra physical activity, e.g. one hour of cycling= the energy supplied by a quarter pound hamburger.