Chapter 6 - Analysis Of Movement

Question 1

What are articulations?

Answer 1

Joints

Question 2

Define the agnostic muscle

Answer 2

the muscle/muscle group who are mainly responsible for the action

Question 3

What isometric contraction?

Answer 3

muscle contraction but not movement occurs

Question 4

What isotonic contraction?

Answer 4

muscle changes length when contracting

Question 5

What is a concentric contraction?

Answer 5

A muscle shortening as it contracts

Question 6

What is eccentric contraction

Answer 6

A muscle lengthening as it contracts

Question 7

What is the sagittal plane?

Answer 7

the plane the splits the body into left and right

Question 8

What is the frontal plane?

Answer 8

the plane that splits the body into front and back

Question 9

What is the transverse plane?

Answer 9

The plane that splits the body into top and bottom

Question 10

What is the frontal axis?

Answer 10

The axis that passes from from front to back

Question 11

What is the transverse axis?

Answer 11

The axis that passes from side to side

Question 12

What is the longitudinal axis ?

Answer 12

The axis that passes from top to bottom

Question 13

What are the pairs of planes and axis?

Answer 13

Sagittal plane and transverse axis Frontal plane and frontal axis Transverse plane and longitudinal axis

Question 14

What movements do each pair of planes and axis make?

Answer 14

Sagittal plane and transverse axis - flextion and extension movements. forward and backwards movements. Frontal plane and frontal axis - Adduction and abduction. Side to side movements Transverse plane and longitudinal axis - rotational movements

Question 15

Name the types of joint and where to find them?

Answer 15

Hinge - Elbow, knee Ball & Socket - Shoulder, Hip

Question 16

Describe plantar and dorsiflextion

Answer 16

Plantar-flextion is point the toes towards the ground Dorsi-flextion is pointing the toes towards the sky

Question 17

Define hyper-extension

Answer 17

When the angle between the bone and the joint exceeds 180

Question 18

Define horizontal hyper extension

Answer 18

When the arm is taken back behind the shoulder but parallel to the ground. (preparing the do an overarm throw)

Question 19

Describe horizonal flextion and extension

Answer 19

Question 20

What are articulatin bones?

Answer 20

Bones that meet to form a joint

Question 21

Describe a first class lever

Answer 21

The fulcrum lies in the middle.

Question 22

Describe a second class lever

Answer 22

The resistance lies in the middle

Question 23

Describe a thrid class lever

Answer 23

The effort lies in the middle

Question 24

Describe the way to remeber what lever is working.

Answer 24

123, FRE

This tells you what factor lies in the middle of each lever.

1 is the fulcrum

2 is the resistance

3 is the effort

Question 25

What are the fulcrum, resistence and effort in a level?

Answer 25

Fulcrum - Joint

Effort - the muscle

Reistance - the weight youre moving

Question 26

Give examples of each lever.

Answer 26

1st class lever - throwing, pressups, headstand to handstand.

2nd class- only occurs at the foot/ankle , running, kicking, jumping.

3rd class- bicep curl,

Question 27

Define the force arm

Answer 27

Distance of the force/effort/muscle from the fulcrum.

Question 28

Define resistance arm

Answer 28

The distance between the resistance and the fulcrum

Question 29

Whats the mechanical advantage and disadvantage of having a short force arm but a long resistance arm?

Answer 29

A short force arm means it can apply much force to move the object, its not very strong.

A long resistance arm means that a large range of movement, an can lift object quickly

Eg) in a 3rd class lever, you can lift a lot of weight but you can do it quckly