Musculoskeletal System And Analysis Of Movement In Physical Activities

Question 1

What type of joints are the knee, elbow and ankles?

What movement happens at these joints?

The articulating bones in each joint?

Answer 1

• Hinge joints
• flexion and extension
• elbow: humerus, radius, ulna knee: femur, tibia ankle: talus, tibia, fibula

Question 2

What are examples at a Ball and Socket joint?

What movements happen at this joint?

What are the articulating surfaces?

Answer 2

• hip and shoulder
• flexion extension abduction adduction and rotation
• hip: femur and pelvis shoulder: humerus and scapula

Question 3

What movement happens at the Ankle?

What movement happens at the hip?

Answer 3

Plantarflexion and dorsiflexion

Roataion abduction and adduction

Question 4

Antagonistic pairs:

Answer 4

The agonist is the muscle that is working, in the arm when you do a bicep curl the bicep is working and the muscle is shortening, so this is the agonist. As after a while the muscle will be in pain. The tricep is the antagonist as its relaxing and the muscle is lengthening.

Question 5

What are the two types of isotonic

What are they?

What is isometric?

Answer 5

Concentric and eccentric

Concentric (shortens, contracts)

Eccentric (lengthen, external)

Still and balanced

Question 6

What is the agonist and antagonist at the elbow during:

Flexion

Extension

Answer 6

• agonist: biceps antagonist: triceps

- agonist: triceps antagonist: bicep

Question 7

What are the agonist and antagonist at the ankle during

Plantar-flexion

Dorsi-flexion

Answer 7

• agonist: gastroenemeous antagonist: tibial anterior

- agonist: tibilas anterior antagonist: gastroenemeous

Question 8

What is the agonist and antagonist at the knee during

Flexion

Extension

Answer 8

• agonist: hamstring antagonist: quadriceps

- agonsit: quadriceps antagonist: hamstring

Question 9

What are the agonist and antagonist in the Hip during

Flexion

Extension

Adduction

Abduction

Horizontal adduction

Horizontal abduction

Answer 9

• agonist: hip flexor antagonist: gluteus maximus
• agonist: gluteus maximus antagonist: hip flexor
• agonist: hip adductors antagonist: gluteuls
• agonist: gluteuls antagonist: hip adductors
• agonist: hip adductors antagonist: gluteuls
• agonist: gluteuls antagonist: hip adductors