Balance and Exercise Testing Flashcards
Momentum
m x V= M
BOS
Perimeter of contact w the ground
Includes AD
COG
Vertical projection of the center of mass to the ground
Balance control
A complex motor task involving detection & integration of sensory info to assess position and motion of body in space and execute musculoskeletal responses to control body position.
- requires interaction of nervous system and musculoskeletal
3 key sensory components of balance
Visual: gaze, speed, direction of movement
Vestibular: acceleration and head position
Somatosensory: pressure, orientation, and movement of body parts, skin, muscles and joints, proprioception
Types of balance control
Static
Dynamic
Automatic
Static
Sit, stand
Dynamic balance control
Move on steady surface or steady on moving surface
Automatic postural reaction (balance control)
An unexpected external push (perturbation)
Motor strategies (distal to proximal)
Ankle Weight shift, frontal plane Suspension( lower COM) Hip Stepping( limit of stability over reached) Combined
Who should be tested for balance
Elderly Weak Recent surgery Neuro impairments Amputees Kids Ppl taking more than 4 prescriptions
TUG test
Timed up and go
Chair height:44-47 cm
Stand, walk 3m, go back and sit down
Timed!
4 square step test
Measure by time not quality
Both feet must touch each square
10m walk test
2m to get going Walk 10m 2 m to slow down Only time 10 m .8m/sec is normal in community
Single limb support norms
60: 22sec
70s: 15 sec
20-50: 30sec