Motor control Flashcards
alignment
relationship of body segments to one another, as well as to the position of the body with reference to gravity and the base of support.
COM
point at center of the total body mass
COG
vertical projection of COM
COP(center of pressure)
center of distribution of total force applied to supporting surface
posture
the biomechanical alignment of the body and the orientation of the body in the environment.
Postural Control
control of the body’s position in space for orientation and stability
Postural Tone
activity increases in antigravity muscle, which keeps the body from collapsing in response to the pull of gravity during quiet stance
Postural Orientation
ability to maintain an appropriate relationship between body segments, and between the body and the environment for a specific task
Postural Stability/ Balance
ability to control the center of mass in relationship to the base of support
movement strategies
Control body sway Feedback control Feedforward Anteroposterior stability (hip, ankle, Stepping) Lateral stability Medial stability
Feedback
postural control that occurs in response to sensory feedback (somatosensory, visual or vestibular) from an unexpected perturbation
feedforward
postural responses that are made in anticipation of a voluntary movement potentially destabilizing in order to maintain stability during movement
Synergy
the functional coupling of groups of muscles that are constrained to ACT TEGETHER as a unit.
Cerebellum
in control of adaptation – the ability to modify postural muscle amplitude in response to changing tasks and environmental conditions
Basal Ganglia
in control of postural set – the ability to quickly change muscle patterns in response to changing tasks and environmental conditions.
