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Title: GCSE Muscles & Movement (HIGH LEVEL)
Description: This is high level of detail for GCSE, if you understand these main roles of muscles for GCSE level you'll be looking up to a B for GCSE Level or higher.
Description: This is high level of detail for GCSE, if you understand these main roles of muscles for GCSE level you'll be looking up to a B for GCSE Level or higher.
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GCSE PE Muscle & Movement
Contract - A muscle tenses as fibres
shorten
The body's involunta1 muscles work our
ry
internal organs
...
Voluntary muscles make the body move
...
Voluntary muscles have fast twitch and
slow twitch fibres
...
Slow twitch fibres
contract slowly, but use oxygen well and
keep going for a long time
...
Endurance
athletes tend to have more 'slow twitch'
fibres
...
Muscles contract when they work
...
An isotonic contraction can be
concentric, which is where the muscle
shortens as the fibres contract or
eccentric, where the fibres contract as
the muscle lengthens
...
Antagonistic pairs of muscles create
m1
ovement when one (the prime mover)
contracts and the other (the antagonist)
relaxes
...
,
working are:
•
the quadriceps and hamstrings
in the leg
•
the biceps and triceps in the
arm
Muscle tone and posture
Muscle tone can be seen when muscles
are in a state of slight tension and they are
ready for action
...
In addition, muscles will
hypertrophy (increase in size) and
develop better endurance
...
Good posture helps with sporting
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develop better endurance
...
Good posture helps with sporting
performance as special positions are often
crucial to success, eg the position
throughout the golf swing
...
An upright body
position is often a sign of self confidence
...
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Title: GCSE Muscles & Movement (HIGH LEVEL)
Description: This is high level of detail for GCSE, if you understand these main roles of muscles for GCSE level you'll be looking up to a B for GCSE Level or higher.
Description: This is high level of detail for GCSE, if you understand these main roles of muscles for GCSE level you'll be looking up to a B for GCSE Level or higher.