Effects of energy intake and expenditure on performance

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Task 1

Energy Intake is the amount of energy you take in during a certain period e.g. the recommended daily energy intake for men is 2500 kcal and for women is 2000 kcal. This energy is then expended during exercise or any physical activity.

Energy is needed for respiration- breathing, keeping your heart beating, keeping the body warm and all other bodily functions needed for survival. It is also needed for physical activity with relation to muscle contraction. Finally energy is needed for growth and repair of body tissue.

Metabolism is the rate at which chemical reactions occur within the body to keep the body health and in working order. Basal metabolic rate is the minimum level of energy intake needed to keep essential bodily functions working and to keep our organs and tissues in working order. Resting metabolic rate is all the energy you have used in a day other than that for physical activity.

The higher the level of activity, then the more energy is burnt off. E.g. if an average adult male weighing 155 pounds plays badminton for 30 minutes they will burn off approximately 205 calories where as if the same person