P-A Instability Flashcards
1
Q
What is the purpose?
A
Testing for unstable lumbar segments due to pain.
2
Q
Proper instructions?
A
Patient rests prone thorax on table and raises legs, activating lumbar extensors. P-A pressure at each lumbar spinous process.
3
Q
Findings?
A
If pain at spinous, weak core stabilizers.
If pain lessens with muscle activation, it indicates benefit for core stabilization.
4
Q
Normal sequence of muscle contraction.
A
Hamstrings, glutes and paraspinal extensors.
5
Q
Facilitated muscles
A
We don’t know.
6
Q
Inhibited muscles
A
Lumbar extensors
7
Q
Beginner exercise
A
Bird-dog
