Review Question - QID 816

Action	Numeric Key	Letter Key	Function Key
Choose 1	1
Choose 2	2
Choose 3	3
Choose 4	4
Choose 5	5
Submit Response			Enter
Previous Question			Left Arrow
Next Question		N	Right Arrow
Open/Close Bookmode		C
Open Image			Spacebar

ACL Tear Rehabilitation Injury prevention QID: 816 (OBQ07.155)

QID 816 (Type "816" in App Search)

Increased ACL injury rates in women athletes compared to male athletes may be due to muscular imbalance and relative weakness in which of the following muscle groups?

Type & Select Correct Answer

Type in at least one full word to see suggestions list

Quadriceps

37%

592/1608

Hamstrings

60%

961/1608

Gluteus muscles

20/1608

Adductors

19/1608

Abdominals

4/1608

Select Answer to see Preferred Response

Review TC In New Tab

Imbalanced or excessive knee extensor power causes abnormal tension on the ACL. Strengthening and proprioreceptive control of the knee flexors/hamstrings protects against excessive or unopposed knee extensors which protect the ACL from excessive tensioning.

The Ahmad reference states that "female athletes after menarche increase their quadriceps strength greater than their hamstring strength, putting them at risk for anterior cruciate ligament injury. Anterior cruciate ligament-prevention programs based on improving dynamic control of the knee by emphasizing hamstring strengthening should be instituted for girls after menarche."

The Vescovi paper examines the effects of such a program on athletic performance. The Baratta paper looked at EMG results of quad and hamstrings and suggested exercise of the antagonist muscle to add to dynamic stability.