1.3 - The sports drink dilemma Flashcards
Why is sugar used during exercise?
- When you exercise, your muscles respire
- to release energy.
- Glucose, a sugar, is used during respiration
Why are water and mineral ions lost during exercise?
- After exercising a while, your body gets hot and sweats more to cool down
- Sweat contains water and mineral ions
What are the three things are used or lost during exercise that need to be replaced?
- Sugar
- Mineral ions
- Water
What could happen if you sweat a lot?
Your body cells could become dehydrated
What are sports drinks?
Solutions of sugar and mineral ions
How is the water in sport drinks useful?
It rehydrates body cells
What are sports drinks designed to do?
Help balance the concentration of body fluids and the concentrations inside cells
What is an isotonic sports drink?
A sports drink where the drink concentration matches the body fluids
What is an argument in favour of sports drinks?
They replace mineral ions and sugar as well as water
What is an argument against sports drinks?
Some sports scientists say it is just as good to have a drink of water for short periods of exercise
