- AQA
Hydration
I can state the effects of dehydration and evaluate the consequences of dehydration on sport performance.
- AQA
Hydration
I can state the effects of dehydration and evaluate the consequences of dehydration on sport performance.
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Lesson details
Key learning points
- Dehydration occurs when there is an excessive loss of water which interupts body functions.
- Maintaining hydration helps prevent dehydration and its consequences.
- Dehydration thickens the blood, which slows blood flow.
- Dehydration leads to increased heart rate, overheating, slower reaction times and muscle cramps.
Keywords
Hydration - having enough water to enable normal functioning of the body
Dehydration - excessive loss of body water interrupting the function of the body
Reaction time - the time taken to initiate a response to a stimulus
Rehydration - consuming water to restore hydration
Viscosity - thickening of the blood
Common misconception
The main consequences of dehydration are headaches and dizziness.
Headaches and dizziness are likely effects of dehydration, however the GCSE specification expects students to be able to understand the physiological reasons behind these such as slow blood flow, increased heart rate and body temperature.
Equipment
Licence
Lesson video
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Prior knowledge starter quiz
6 Questions
Q1.Which of the following is the correct % of protein in a balanced diet?
Q2.Fat provides energy for intensity exercise.
Q3.Match the nutrients with their correct function.
energy source
protects vital organs
muscle growth and repair
maintain hydration
supports general health
Q4.Match the food source with the correct main nutrient.
pasta
avocado
chicken
fruit and vegetables
Q5.The average male adult requires Kcal per day
Q6.A balanced diet contains % of carbohydrate.
Assessment exit quiz
6 Questions
Q1.Which of the following are slower as a consequence of dehydration?
Q2.Which of the following are increased as a consequence of dehydration?
Q3.Hydration is having enough water to enable functioning of the body.
Q4.Which of the following terms is related to thickening of the blood?
Q5.Match the consequence of dehydration to the likely effect for a games player.
likely to mistime an interception
decreased cardiovascular endurance
lack of focus and miss a shot
lack speed when sprinting towards the ball
pass to the wrong teammate