movement analysis

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Fulcrum
The part of a lever system that pivots
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Resistance
The load to be moved by a lever system
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Effort
force applaied to move the resistance or weight
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first class lever
found at the elbow joint
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second class lever
found at the ankle
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third class lever
most common the biceps acting at the elbow to cause flexion
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mechanical advantage
the benefit to a lever system of having either a short effort arm- giving rapid movements over a large range of movement. or a short resistance arm- giving the advantage of moving a heavy weight
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isotonic
muscle changes length
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isometric
muscle stays the same length
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concentric
isotonic contraction where muslce shortens
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eccentric
isotonic contraction where muscle lengthens
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agonist
muscle that causes movement
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antagonist
muscle that relaxes to allow the agonist to contract
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tendons
attach muscles to bones
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sagittal plane and transverse axis
plane and axis for foward and backward movements- direction for extension and flexion
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frontal plane and sagittal axis
for side to side movements- directions for abduction and adduction
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transverse plane and longitudinal axis
rotating movemements- direction for rotations and spins
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deltoid
muscl causing flexion at the shoulder
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latissimus dorsi
muscle causing extension at the shoulder
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biceps
causing flexion at the elbow
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triceps
causing extension at the elbow
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hamstrings
causing flexion at the knee
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quads
causing extension at the knee
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hip flexors
main agonist at the hip during flexion
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tibialis anterior
causing dorsiflexion at the ankle
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gastrocnemius
causing plantar flexion at the ankle
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Other cards in this set

Card 2

Front

The load to be moved by a lever system

Back

Resistance

Card 3

Front

force applaied to move the resistance or weight

Back

Preview of the back of card 3

Card 4

Front

found at the elbow joint

Back

Preview of the back of card 4

Card 5

Front

found at the ankle

Back

Preview of the back of card 5
View more cards

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