Kinetics of Muscle Contraction

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What is the term for the force exerted on the body that translates a body segment?

Moment arm

Torque (correct)

Linear force

External load

What type of muscle contraction occurs when the muscle produces a pulling force while maintaining a constant length?

Isometric (correct)

Eccentric

Isotonic

Concentric

What is the role of an agonist muscle?

To cooperate during the execution of a particular movement

To execute a particular movement (correct)

To oppose the action of a particular movement

To elongate a muscle during contraction

What is the term for the distance between the axis of rotation and the force?

Moment arm Signup and view all the answers

What type of muscle contraction occurs when the muscle produces a pulling force as it is being elongated by another more dominant force?

Eccentric Signup and view all the answers

What is the role of an antagonist muscle?

To oppose the action of a particular movement Signup and view all the answers

What is the term for the internal forces generated by tension in stretched periarticular connective tissues?

Passive force Signup and view all the answers

What type of muscle contraction occurs when the muscle produces a pulling force as it contracts (shortens)?

Concentric Signup and view all the answers

What is the primary source of internal forces within the body?

Stimulated muscle Signup and view all the answers

What is the result of the product of a force and its moment arm?

Torque Signup and view all the answers

Which type of muscle contraction occurs when the muscle torque is equal to the external load?

Isometric Signup and view all the answers

What is the role of synergistic muscles during movement?

To cooperate during the movement Signup and view all the answers

What is the term for the muscle group that is most directly related to the execution of a particular movement?

Agonist Signup and view all the answers

What is the primary difference between active and passive internal forces?

Source of the force Signup and view all the answers

What determines the direction of muscle torque?

Moment arm Signup and view all the answers

What is the relationship between muscle torque and external load in concentric muscle contraction?

Muscle torque is greater than the external load Signup and view all the answers

Kinetics of Muscle Contraction

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