Screening and prevention of ACL injuries

Question 1

Four ligaments across the knee

Answer 1

Anterior cruciate ligament
Posterior cruciate ligament
lateral collateral ligament
medial collateral ligament

Question 2

Knee ACL injuries - how many are non contact

Answer 2

70%

Question 3

How can non-contact ACL injuries be prevented?

Answer 3

• Reducing frontal knee joint angle
• Reducing frontal plane knee loading
• Increasing sagital plane knee joint angles
• Reducing sagital plane knee loading

Question 4

Q-angle

Answer 4

Line drawn from the ASIS to central patella and second line drawn from central patella to tibial tubercle

Question 5

ASIS

Answer 5

Anterior superior iliac spine

Question 6

Normal Q-angle

Answer 6

• 14 degrees MALE

- 17 degrees FEMALE

Question 7

Increase Q-angle can cause what injury

Answer 7

Dislocation of the patella

Question 8

Single and double leg jumps

Answer 8

Double-leg sagital plane jump landing tasks may not adequately represent single-leg lower extremity biomechanics

Question 9

Knee valgus can be restricted by

Answer 9

Strengthening glutes and hamstrings

Question 10

Alpha motor neurons are in charge of

Answer 10

In charge of muscular system

Question 11

Gamma motor neurons are in charge of

Answer 11

Tendon

Question 12

What occurs due to reduction in drop height (Hip and ankle)

Answer 12

Reduction in contribution at hip and increase from ankle during energy absorption phase as drop height reduces

Question 13

Core stability training - aim

Answer 13

to increase muscle activation

Question 14

Limitations to Unstable training research

Answer 14

• Little consideration to adaptations
• No familiarity to unique demands
• Subsequent effects (stable surface)
• Experience levels of participants

Question 15

What is believed to result in ACL injuries?

Answer 15

High internal hip & knee abduction torques are

believed to result in ACL injuries