Nutrition

Question 1

What is Force?

Answer 1

Mass x acceleration = Nm

Question 2

What is power?

Answer 2

Application of force over time- Units: J/s (Joules per second), or W (Whatts); note
o 1Nm = 1K

Power: lifting 1kg up 1m in 1 second
o = 1kg x 1m x 9.8m/s^2 / 1s
o 10 Nm/1s = 10 W

Question 3

What happens in the body when we exercise

Answer 3

o Muscle cells produce more energy (ATP) > increased use of oxygen > more blood is pumped around the body (to provide O2) > heart rate increases + breathing rate increases

o Increased metabolic heat production > sweating (evaporative heat loss) + redness in skin (radiant heat loss)

Question 4

What are the micronutrients and what are they made of

Answer 4

o Protein: Amino acids
o Fat: Saturated, monosaturated, polyunsaturated (omega 3, omega 6, omega-9)
o Carbohydrate: Glucose, fructose, galactose, monosaccharides, disaccharides, oligosaccharides, polysaccharides

Question 5

How is energy produced in the body?

Answer 5

REVIEW ENERGY PRODUCTION TABLE

Question 6

What are the energy systems required for sprints?

Answer 6

• Anaerobic +/- some CHO

Question 7

What are energy systems for Middle distance?

Answer 7

: Anaerobic + aerobic (CHO +/- some fat)

o Nutritional goals: body composition (reduce fat mass/dead weight), optimise lean mass (not too bulky, powerful), CHO availability

Question 8

What are energy systems for long distance events?

Answer 8

o Energy systems: aerobic (CHO + fat)

o Nutritional goals: body composition (reduce fat, optimise body weight), endurance ability, CHO availability, CHO intake during event, fuel use programming, fluid intake during event

Question 9

What are some nutritional tools for sports performance?

Answer 9

• CHO intake
• Caffeine
• Supplements (vitamins etc)
• SPorts drinks, fluids, electrolytes
• Gels