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Unit 4: The Sports Performer in Action

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Casey Bailey

on 2 October 2014

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Transcript of Unit 4: The Sports Performer in Action

The Sports Performer in Action
Unit 4:
Use any reasoning to argue for or against the subject.
Argue For
or Against It
BRAINSTORM
ELEMENTS
copy and paste as needed to add notes to your brainstorm
Cubing is a brainstorming strategy outlined in the book, Writing, by Gregory Cowan and Elizabeth Cowan (New York: Wiley, 1980). With cubing, like with other brainstorming methods, you start with one topic, challenge or issue. Then, you apply six points of view (like the six sides of a cube) to the issue.
Unit Learning Aims
Learning Aim A:
Know about the short
term responses and
long term adaptations
of the body systems
to exercise
Learning Aim B:
Know about the
different energy
systems used during
sports performance
Short Term Response of
Musculoskeletal System
to Exercise
Learning Aims:
2A.P1 – Describe ways in which the musculoskeletal system responds to short term exercise.

2A.M1 – Explain responses of the musculoskeletal system to short term exercise

Bell Work
What is the musculoskeletal system?

Using your book or resources provided answer this question on the board.
Short Term Response of the Cardiorespiratory System to Exercise
Learning Aims:
2A.P2 – Describe ways in which the cardiorespiratory system responds to short-term exercise.

2A.M2 – Explain responses of the cardiorespiratory system to short-term exercise


Bell Work
Take out your homework and discuss in pairs.

Some of you will be picked at random to present your work to the group... So use this time well!
Long Term Adaptations of the Musculosketal System to Exercise
Learning Aims:
1A.3 – Summarise two long term adaptations of the musculoskeletal system resulting from exercise.
2A.P3 – Summarise, using relevant examples, long term adaptations of the musculoskeletal system to exercise.
2A.M3 – Explain long-term adaptations of the musculoskeletal system to exercise.

Bell Work
Organise the list into:
- Short term effects on musculoskeletal
- Short term effects on Cardiovascular.
- Long term effects Musculoskeletal.
Increased Heart Rate
Increased Joint Stability
Micro-tears in Muscle Fibres
Increased Movement Around Joints
Hypertrophy
New Bone Formation
Lactic Acid in Blood
Increased Tidal Volume
Increased Mitochondria
Long Term Adaptations of the Cardiorespiratory System to Exercise
Learning Aims:
1A.4 – Summarise two long term adaptations of the cardiorespiratory system resulting from exercise.
2A.P4 – Summarise, using relevant examples, long term adaptations of the cardiorespiratory system resulting from exercise.
2A.M4 – Explain long-term adaptations of the cardiorespiratory system to exercise.



Bell Work
With the person next to you, discuss: -
What does this show?
Why am I here?
How could I move up/down the line?

Take your pulse and line yourselves up in order of highest HR to lowest HR.
Energy Systems in Sport
Learning Aims:
1B. 5 – Describe the two main energy systems. Including examples of sports which use this system.

2B. P5 – Describe the function of the three energy systems in the production of energy for sports performance.

2B. M5 – Using two selected sports, explain how the body uses both the anaerobic and aerobic energy systems.



Bell Work
In pairs – Can you come up with a definition of Aerobic activities and Anaerobic activities?
How does exercise make your muscles feel?
What makes them feel like
this?
Muscle Micro Tears
Resistance exercise can cause the muscles to tear slightly.

These tears repair to make the muscles bigger and stronger over time.

If your muscles feel sore, this will be why.
Increased Range of Movement and Heat.
During exercise muscles become warmer as more blood flows to the area.

This makes it possible for greater range of movement around joints.

This is why warming up is key to avoid pulling your muscles.
Research and Teach Task
Split into 3 groups - you will use the research materials to find out about one of these subjects: -
Synovial Fluid and Joint Lubrication

Bone Formation

Metabolic Activity
In ten minutes you will have a lesson ready to teach this to one of your peers without the research you used to learn it. They will need to know: -
What is it? What happens during exercise? Why?
Question Time?
Show what you know
Recap
Synovial Fluid and Joint Lubrication
Lubricates and nourishes joint
Gets thinner and warmer in exercise
This makes movement easier
Bone Formation
When bones are put under stress new bone can be formed.
Proteins, mainly collagen, are released to strengthen the bone.
This occurs mainly from high impact activity.
Metabolic Activity
The creation of energy from food and drink.
Enzymes are used in this process.
This is essential to keep exercising for long periods.
Outline two ways in which musculoskeletal systems responds to short term exercise.
Expand by describing in more depth and again by explaining.

Assessment Question (green pen)
Homework: Complete worksheet on the cardiorespiratory and musculoskeletal system.
Some pupils will be chosen to present their work next week!
On your feet!

- Take pulse (write it down).
- Class discussion linked to homework.

- Short burst of exercise.
- Recheck pulse – What has happened? Why?
Quick on the Draw
9 Questions to answer.
One question given at a time by the teacher.
Information needed for answers given by teacher.
Extra clues can be bought.
Answers filled out on worksheet.
Assignment Guidance
Describe
A short term response to exercise is an increase in heart rate.
Explain
When you begin exercising, your active muscles require more oxygen.
To provide oxygen at a faster rate, the heart rate will increase to provide
more oxygenated blood.
Define
Heart rate is a measure of how fast your heart beats, it is measured in beats per minute (BPM).
Explain two ways in which the cardiorespiratory system responds to short term exercise.

Assessment Question (green pen)
Homework: Complete worksheet on Musculoskeletal System


Can we build a Knee Joint?
What are the strengths and weaknesses of your joint?
How could your joint be strengthened?
Long term benefits for bones

Exercise has two main benefits for bones:
increased bone density
and a
decreased risk of osteoporosis.
These benefits include
connective tissues
,
increased cartilage thickness
and
increased stability of joints.

Long-term benefits for joints
Long-term benefits for muscles
Hypertrophy
When the
muscle tears
caused by exercise (short term effect) heal, muscle fibres don't just repair,
they become bigger and stronger!
This is why people who do a lot of resistance exercise have
bigger muscles
than those who don't.
Mitochondria
Long term exercise can lead to
more mitochondria
and
bigger mitochondria.
Mitochondria can get
40% bigger
and
double in number.
Mitochondria are essential for
aerobic energy production
, so this is great for endurance, but nor for explosive athletes e.g long jumpers.
Improved posture
As
core muscles get stronger
,
They
support the spine
and
posture improves
.
This can
help prevent injuries
and improve sports performance.
Examination Question (Green Pen)
Explain how long term exercise can affect the musculoskeletal system, give 1 example for bones, 1 for joints and 1 for muscles.

Group Discussion and Presentation
In small groups discuss the following questions, make notes and be prepared to present your thoughts.
What do the lungs do during exercise?
What does the heart do during exercise?
How do the heart and lungs work together?
Long Term Adaptations of the Cardiorespiratory System
Stronger heart = More blood pumped in one beat = Less beats needed.
Lower Resting Heart Rate
Bigger, Stronger Heart
Increase in Stroke Volume
Stronger heart = More blood pumped in a beat
Decreased risk of Hypertension
(High Blood Pressure)
Increased Vital Capacity
Increased efficiency of Oxygen Delivery and removal of waste products.
Increased lung efficiency and Gaseous Exchange
Increased maximum oxygen uptake (VO2 Max)
Group discussion – Pick a sport and explain why the athlete would aim to improve the efficiency of their cardiorespiratory system.
Assessment Question (green pen)
Describe how the cardiorespiratory system responds to long term exercise.

Minimum of two examples.
Stretch by explaining the impact of these adaptations.

Homework
Create a poster explaining 3 long term adaptations of the Cardiorespiratory system, explaining what sports/ exercise activities may lead to these adaptations.

Marketplace
- The Aerobic Energy System.
- The ATP-CP/Alactic Acid Anaerobic System.
- The Glycolysis/ Lactic Acid System.

In groups you will research the following
You will create a presentation to feedback to the group
Key information
Can you explain
- Where the energy comes from?
- How long the system can provide energy for?
- An example of an activity that uses it?
- Any additional information

You will create a presentation to feedback to the group
Summary
Aerobic Energy System
ATP-CP/ Alactic Acid Anaerobic System
The Glycolysis/ Lactic Acid System
Can you come up with a sporting example
of when each energy system is used?
Can you come up with a sporting event when ALL energy systems are used?
Full transcript