Exam 3 Flashcards
Define the gait cycle
From initial heel contact of one foot to heel contact of the same foot
- has 2 steps (L and R step)
gait cycle can also be called what?
stride
define stride length
distance between 2 successive heel contacts of the same foot
what is normal stride length for males?
1.52 m
what is normal stride length for females?
1.32 m
define step length
distance between successive heel contacts of 2 different feet
define degree of toe-out
angle between line of progression of the body and a line intersecting the center of the heel and second toe
what is a normal degree of toe out
5-7 degrees
define step width
lateral distance between heel centers of 2 consecutive foot contacts
what is average step width
7-10 cm
define stride time
time for a full gait cycle
define step time
time for completion of a R or L step
define cadence
- number of steps per min
- also describes as step rate
what is normal cadence for males
108 steps/min
what is normal cadence for females
118 steps/min
how do you define walking speed
- distance covered in a given amount of time
- about 3 mph
what is the best and most functional measurement of individuals walking ability?
walking speed
what is normal walking speed in males
1.37 m/sec
what is normal walking speed in females
1.30 m/sec
what % of the walking gait cycle is stance phase
60%
what % of the walking gait cycle is swing phase
40%
what % of the walking gait cycle is single-limb support
80%
what % of the walking gait cycle is double-limb support
20%
what % of the running gait cycle is stance phase
30%
what % of the running gait cycle is swing phase
70%
what % of the running gait cycle is single support phase
60%
what % of the running gait cycle is a float period
40%
what is the Rancho Los Amigos Terminology
- initial contact
- loading response
- midstance
- terminal stance
- pre swing
- initial swing
- mid swing
- terminal swing
what are the 3 functional tasks of gait
- weight acceptance
- single limb support
- swing limb advancement
what makes up the weight acceptance functional task of gait
- initial contact
- loading response
what makes up the single-limb support functional task of gait
- mid stance
- terminal stance
what makes up the swing limb advancement functional task of gait
- pre swing
- initial swing
- mid swing
- terminal swing
what does weight acceptance of gait do functionally
- forward progression
- stability
- shock absorption
what does single limb support of gait do functionally
- stability
- forward clearance
what does swing limb advancement of gait do functionally
- foot clearance
- limb advancement
during gait, in what ways is CoM displaced
- forward direction
- vertical direction
- side-to-side direction
what is the total vertical displacement during gait
about 5 cm