Deck 7: Trunk Control: Supporting Functional Independence

Question 1

The type of muscle contraction that rights the trunk after functional activities is:

A) concentric.
B) eccentric.
C) isometric.
D) none of the above.

Answer 1

A
When the trunk moves in a direction opposite to gravitational pull,the muscles on the uppermost side of the trunk contract concentrically.

Question 2

Assuming an anterior pelvic tilt results in:

A) spinal extension.
B) an anterior weight shift.
C) an accentuation of the lumbar lordosis.
D) all of the above.

Answer 2

D
The patient initiates the movement with the lower trunk and pelvis and assumes an extended spine posture with a neutral to slight anterior tilt,which accentuates the lumbar curve.The patient completes the movement pattern by a concentric contraction of the trunk extensors.

Question 3

Reaching across the midline requires control of what specific movement patterns?

A) Flexion
B) Extension
C) Rotation
D) Lateral flexion

Answer 3

C
Rotational trunk responses result from reaching across the midline or for objects posterior to the shoulders or hips.

Question 4

The section of the spine that permits the greatest range of trunk flexion is the _____ spine.

A) cervical
B) thoracic
C) lumbar
D) sacral

Question 5

Bridging is primarily controlled by the:

A) rectus abdominis.
B) obliques.
C) hip and back extensors.
D) hamstrings.

Question 6

Trunk rotation toward the left is controlled by the:

A) rectus abdominis.
B) left external oblique and right internal oblique.
C) right external oblique and left internal oblique.
D) right and left external oblique.

Question 7

Lifting a hip while seated to perform lower extremity dressing requires:

A) a balance of flexion and extension control.
B) concentric shortening of the trunk.
C) lateral weight shifting ability.
D) all of the above.

Question 8

Movements that result in the shoulders moving posterior to the hips are primarily controlled by:

A) abdominals.
B) extensors.
C) lateral flexors.
D) obliques.

Question 9

Reaching down to pick up an object from the floor requires which type of contraction of the extensors?

A) Concentric
B) Eccentric
C) Isometric
D) Isotonic

Question 10

Crossing the involved leg during lower extremity dressing predominately requires control of the back extensors to prevent posterior falls.