Movement

Question 1

Kinesiology

Answer 1

The study of movement

Question 2

Biomechanics

Answer 2

Principles of physics to quantitively study how forces interact with the body

Question 3

Kinetics

Answer 3

Effects of forces on bodies at rest (static) and bodies in motion (dynamics)

Question 4

Kinematics

Answer 4

Study of motion of a body

Question 5

1st newtons law

Answer 5

A body remains at rest or at a constant linear acceleration except when an external force changes it state

Question 6

2nd newtons law

Answer 6

Linear acceleration is directly proportional to the force causing it, takes place in the same direction in which the force acts, inversely proportional to the mass of the body

Question 7

3rd newtons law

Answer 7

For every force there is an equal an opposite reaction

Question 8

Translation

Answer 8

Linear movement e.g Patella movement during knee flexion final stages

Question 9

Rotation

Answer 9

Angular movement where a body moves around a pivot/axis of rotation e.g tibial movement during knee flexion

Question 10

Internal force

Answer 10

Force acting between segments of body parts e.g tendon force (acting over tibia)

Question 11

External force

Answer 11

Force between environment and human body e.g ground reaction force (like when running)

Question 12

Muscle strength

Answer 12

Ability to produce tension and resultant force based on the demands placed on the muscle

Question 13

Muscle power

Answer 13

Work produced by a muscle per unit of time

Question 14

Muscle endurance

Answer 14

Muscle ability to contract repeatedly against a load, generate and sustain tension and resist fatigue over an extended period of time

Question 15

Isometric contraction

Answer 15

Muscle length remains constant as tension is produced

Question 16

Concentric contraction

Answer 16

Muscle length shortens as tension is produced

Question 17

Eccentric contraction

Answer 17

Muscle length increases as tension is produced

Question 18

Length-tension relationship optimal area

Answer 18

Optimal force is near the mid muscle length/range

Question 19

Agonist/prime movers

Answer 19

Contract to directly produce the desired joint movement

Question 20

Antagonist

Answer 20

Opposes or produced opposite joint movement to the agonist

Question 21

Synergist

Answer 21

Stabilizes a joint around which movement is occurring, minimizes unwanted action of agonists

Question 22

Fixator

Answer 22

Stabilizes the origin of the agonist and the joint around which movement occurs to help agonist function most effectively