requires an eccentric muscle action immediately followed by a concentric muscle
action
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stretch shortening cycle
Four Muscle Characteristics
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Excitability
Contractility
Extensibility
Elasticity
,Power equation
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P=W/t (the rate of work)
Which of the changes will increase concentric force production?
1. decreased rate coding
2. decreased leverage over the joint range of motion
3. increased contraction velocity
4. increased physiological cross-sectional area
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4. increased physiological cross-sectional area
proximal end of the "chain" of joints is fixed; distal extremity is moveable; one joint can
act independently of other joints
ex. leg press
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Open Kinetic Chain
the oxygen uptake above resting values used to restore the body to the preexercise
condition
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, Excess Postexercise Oxygen Consumption (EPOC)
Angular Kinetic Energy equation
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AKE=0.5 x I x w(angular velocity)squared
end product of glycolysis; most common marker of increased anaerobic metabolism
during exercise; can be converted into lactic acid
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lactate
(increase/decrease) in pH level (more acid) inhibits energy levels in muscles during
exercise
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decrease
control of motor unit firing rate (faster the firing rate, more force is produced)
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action
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stretch shortening cycle
Four Muscle Characteristics
Give this one a try later!
Excitability
Contractility
Extensibility
Elasticity
,Power equation
Give this one a try later!
P=W/t (the rate of work)
Which of the changes will increase concentric force production?
1. decreased rate coding
2. decreased leverage over the joint range of motion
3. increased contraction velocity
4. increased physiological cross-sectional area
Give this one a try later!
4. increased physiological cross-sectional area
proximal end of the "chain" of joints is fixed; distal extremity is moveable; one joint can
act independently of other joints
ex. leg press
Give this one a try later!
Open Kinetic Chain
the oxygen uptake above resting values used to restore the body to the preexercise
condition
Give this one a try later!
, Excess Postexercise Oxygen Consumption (EPOC)
Angular Kinetic Energy equation
Give this one a try later!
AKE=0.5 x I x w(angular velocity)squared
end product of glycolysis; most common marker of increased anaerobic metabolism
during exercise; can be converted into lactic acid
Give this one a try later!
lactate
(increase/decrease) in pH level (more acid) inhibits energy levels in muscles during
exercise
Give this one a try later!
decrease
control of motor unit firing rate (faster the firing rate, more force is produced)
Give this one a try later!
