How does dynamical systems work in the elderly

Question 1

Aging brings change

Answer 1

loss of skeletal muscle
slower response by CNS (reaction time)
often sensory decline (vision)
Disease (stroke, Parkinson’s)

Question 2

Psycho-social change

Answer 2

fear of falling
fear of loss of freedom
leads to lifestyle changes

Question 3

Walking in elderly

Answer 3

So, “growth” influences the elderly
and CNS influences the elderly
aging and gate

Question 4

degrees of freedom

Answer 4

A statistical term applied to movement
describes the number of sources of errors
at both ends of age continuum
reducing the number of “things” to control
reduces errors

Question 5

loco motor skills

Answer 5

moving from one place to another
walking
running
jumping and variations

Question 6

Running

Answer 6

non-support phase
left right left right
none support (stride) phase increases

Question 7

Longer legs
stronger legs
efficient form

Answer 7

speed increases
stride rate is relatively constant
stride length increases

Question 8

Components of Run (ARM ACTION)

Answer 8

stationary (maybe high guard)
Spine rotates arms- arms may flail
flexed arms with spinal rotation
humerus drive

Question 9

Components of Run (LEG ACTION)

Answer 9

flat footed, minimal flight
anterior-posterior motion, increased flexion
heel toe action, leg swing of 180, thigh parallel in forward swing,
heel to buttocks on backswing

Question 10

Timing

Answer 10

Running begins in 18-24 months
see none support phase
60 percent of boys (4 years) and girls (5 years) reach mature stage