diet and nutrition

Question 1

define energy balance

Answer 1

the relationship between intake or food and output of work, so calories consumed to those used.

Question 2

what is a positive energy balance score

Answer 2

when the body stores extra food as fats as more food was consumed than expended
results in weight gain

Question 3

what is a negative energy balance

Answer 3

the body draws on stored fat to provide energy as more energy is expended than food is eaten
results in weight loss

Question 4

what is energy that is balanced

Answer 4

food consumed equals amount expended
weight is maintained

Question 5

what portion of diet should be carbohydrates

Answer 5

55-60%

Question 6

what portion of diet should be fat

Answer 6

25-30%

Question 7

what portion of diet should be protein

Answer 7

15-20%

Question 8

define a balanced diet

Answer 8

eating the right amount of calories from varying sources to deal with the energy that will be needed

Question 9

what are specific needs for carbohydrates

Answer 9

• the main energy source for all types of activity
• high and low intensity exercise
• fuel for muscular contractions
• useful for 1min to 2 hours of exercise
• provided within bread, pasta, potatoes etc.

Question 10

whta are the specific needs for fats

Answer 10

• also an energy source
• required for low intensity energy and insulation
• comes in 2 forms: saturated fats (animal fats), unsaturated fats (vegetable fats/ oils)

Question 11

what are the specific needs for protein

Answer 11

• for tissue growth and repair
• small part to play in energy
• provided by food like fish, meat, eggs, dairy, nuts

Question 12

what are the specific needs for minerals in the body

Answer 12

• required for bone growth and maintenance of regular bodily fucntions
• inorganic substances e.g. calcium are good for bone formation

Question 13

what are the specific uses for water

Answer 13

• required to prevent dehydration
• approximately 8, 8oz glasses should be drunk per day

Question 14

what are carbohydrates role in physical activity

Answer 14

• consumed in large quantities before the event by endursnce athletes so it is released slowly during event and doesnt run out

Question 15

what is the role of protein in physical activity

Answer 15

consumed after training to assist in muscle repair

Question 16

what us the role of water in physical activity

Answer 16

• maintains hydration
• prevents reaction time increasing
• prevents decision making from slowing
• prevents heart rate from increasing
• however too much water (hypernatremia) is bad