Lecture 11 Flashcards
1
Q
What are some factors influencing postural synergies
A
- Pertubation stimulus parameters:
*direction
*magnitude
*location
*predictability - Initial posture
- instructions
- sensory information
2
Q
Synergies are ____ _____
A
Context specific
3
Q
Synergies change depending on the ____ __ __ ___
A
Postural orientation and context
4
Q
Synergies differ across ___ ___
A
pertubation type
5
Q
compare and contrast synergies seen in translation vs rotation
A
Center of mass moves in different directions
different link movements
different muscles contribute to balance correcting response
6
Q
Postural synergies can involve early activation of ___ and ____ muscles
A
distal, proximal
7
Q
Muscle response amplitudes increase with velocity in terms of
A
stretch reflexes
balance correcting responses
8
Q
Muscle response amplitudes decrease with predictability both for
A
de-stabilizing stretch responses
balance correcting responses
