9/11d Gait/Locomotion/Balance Lab Flashcards
Arcadia Movement System
CASSS
Ornament - Activity, Environment, Personal Factors, Motion, Force, Energy, Motor Control
Gait Cycle
initiated as soon as the foot contacts the ground, ends when the same foot once again makes contact with the ground.
2 steps, a left and a right and should take 1 second to complete
stride length
measured from the distance between 2 successive heel contacts of the same foot
step length
distance measured from successive heel contacts of two different feet
foot angle
the degree of toe-out, angle between line of progression of the body and the long axis of the foot
cadence
most basic temporal descriptor of gait and it’s the number of steps per minute
normal cadence for adults
young adults - 84 meters per minute (1.4 m/s)
older adults - 60 meters per minute (1 m/s)
stride/step time
temporal descriptors of gate that calculate the amount of time per stride and step
walking speed
combines spatial and temporal measures by providing distance in a given time
1.4 m/s for young adult, 1 m/s for older adult
Foot flat
the instant the entire plantar surface of the foto comes in contact with the ground, at approximately 8% of the cycle
Mid stance of gait
when the body’s weight passes directly over the lower extremity. Time when the foot that is in the swing phase passes the lower extremity in stance phase
Heel off
occurs approximately at 40% of the gait cycle
Toe off
occurs the instant the toe comes off the ground at approx 60% of the gait cycle
double support
both feet in contact with ground simultaneously
single limb support
only one foot is on the ground
usual stride single vs double support
more double support
slow as possible walking speed support
even more double support than the usual stride speed and smaller strides
fast as possible walking speed support
stride gets larger and there is much longer single support than double support
what does lower back pain yield in steps?
shorter step length, slower speed, and less amount of speed
Right knee pain causes what in steps?
a lot less motion and some asymmetry
what does hemiparesis do to ambulation?
develops asymmetrical gait pattern
postural control
act of maintaining, achieving or restoring a state of balance during any posture or activity. Postural control strategies may be either predictive or reactive, and may involve either a fixed-support or a change-in-support response.