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We are able to offer you a fantastic online student revision workshop that can best prepare your learners for the PHED 1 Examination in January 2012.The workshop will allow your learners to get some superb top tips from a Chief Examiner. The workshop will cover all of the key revision points and will be an invaluable revision tool. The workshop will allow your learners to be equipped with vital knowledge that can be used to help with how they can improve their grades. Participating centres will require just one log-in, you can get all of your learners to listen and view the workshop at the same time using one projector screen and speakers, and you will also be able to interact with the session using our online programme.Participating centres will also be able to access the recording of the session so that learners can watch and listen to the session again after the session has taken place.
Citation preview
1
Upward and Downward movements No movement • Type of contrac6on -‐ • Muscle stays same length Upward movement • Type of contrac6on -‐ • Muscle shortens Downward movement • Type of contrac6on -‐ • Muscle lengthens
Concentric
Isometric
Eccentric
2
Press ups – A-‐B
Pressing up
Joint – elbow
Joint action =
Muscle action -
Agonist =
Plane/axis =
Extension Concentric
Triceps
Sagittal/transverse
3
Press ups – B-‐A
Lowering down
Joint action =
Muscle action –
Agonist =
Flexion Eccentric
Triceps
Control of heart rate – Typical ques6ons
Jan 10 Qu 2. (c) During a game, a player’s work rate will vary. Describe how the
parasympathe*c and the sympathe*c nerve pathways control heart rate during a game. (4 marks)
May 10 Qu 1 (b) (ii) Explain how rising levels of carbon dioxide cause an increase in cardiac
output. (4 marks)
5
Changing heart rate
• SAN sets heart rate - • Nerves act as • Vagus/parasympathetic nerve • Sympathetic nerve
intrinsic brake and accelerator
slows heart speeds up heart
6
Cause of change in heart rate
• Exercise – • Increased • Detected by • Impulses to • Changes to heart rate via
chemoreceptors medulla
vagus / parasympathetic – reduced effect
acidity / (lower pH) more CO2 in blood
and sympathetic nerves – speeds up
