Chapter 5 - Human Movement Science - Muscle Actions

Question 1

Concentric

Answer 1

A concentric muscle action: happens when the contraction is accompanied by the shortening of the muscle tissue.

Question 2

Eccentric

Answer 2

An eccentric muscle action: is accompanied by the lengthening of the muscle tissue.

Question 3

Isometric

Answer 3

In isometric muscle action is when no change in the length of the muscle happens.

Question 4

Isokinetic

Answer 4

in isokinetic muscle, action is when the contraction speed of a muscle is constant.

Question 5

Force

Answer 5

Any movement that results in the speeding up or slowing down of an object.

Question 6

Length-tension relationships

Answer 6

This is the perfect length of a muscle that will result in the most force produced. The ability of a muscle to produce force at its current range.

Question 7

Torque

Answer 7

Something that tends to produce rotation or torsion. The movement of a system or force that typically leads to a rotation.

Question 8

Rotary motion

Answer 8

This is rotational movements from the joints.

Question 9

Force Couple

Answer 9

Groups of muscles that work with one another in order to produce a force on a joint.