The Gait Cycle
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| What is the hip flexion requirement for normal gait? | show 🗑
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| What is the hip extension requirement for normal gait? | show 🗑
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| show | 0-60 degrees
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| show | 0 degrees
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| show | 0-10 degrees
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| show | 0-20 degrees
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| What are the muscle activation patterns at initial contact (heel strike)? | show 🗑
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| show | pretibial eccentric contraction, , Quadriceps eccentrically to absorb the shock, Hamstrings to extend the hip, Hip ABD stabilize the pelvis in the frontal plane
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| what are the muscle activation patterns at midstance? | show 🗑
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| What are the muscle activation patterns at terminal stance (heel off)? | show 🗑
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| show | rectus fermoris acts to restrain rapid knee flexion, momentum enables the femor to fall forward aided by th adductor longus and rectus femoris
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| What are the muscle activation patterns at initial swing (acceleration)? | show 🗑
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| show | pretibial mm, Knee Ext. by momentum and gravity,hip flexors, and hamstrings begin to fire
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| What are the muscle activation patterns at terminal swing (deceleration)? | show 🗑
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| What is the average BOS of an adult? | show 🗑
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| What is the cadence for an average adult? | show 🗑
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| show | 7 degrees
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| How much does the pelvis rotate during the gait cycle? | show 🗑
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| What are the energy costs of walking? | show 🗑
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| show | age, abnormal gait, use of assistive devices
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| show | After initial contact (heel strike): Responsible for eccentric plantarflexion
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| When is the peak activity of the gastroc-soleus group during the gait cycle? | show 🗑
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| When is the peak activity of the quadriceps during the gait cycle? | show 🗑
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| show | During late swing phase: Responsible for decelerating the unsupported limb
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| How much lateral pelvic shift (PELVIS LIST) occurs during the gait cycle and which muscle group controls it? | show 🗑
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| show | shorter step length, decreased duration of double support (running occurs when double support disappears, at about 180 steps/min)
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| what mm works together to shorten the stance limb in midstance (control the rise of COG) | show 🗑
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| what mm works together to lengthen the stance limb | show 🗑
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| how much is the vertical displacement of COG | show 🗑
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| show | 2.5 - 5 cm total motion
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| show | 5 cm antrior to the S2 vertebrae
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| what is the normal stride length | show 🗑
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| show | keeps the COG from moving up and down more than 5 cm during normal gait , the High point occurs at midstance and the low point during initial contact
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| show | Ground contact posterior to the ankle joint center creates a planter flexion torque
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| show | A brief extension torque occurs
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| show | A rapid, high intensity flexion torque begins
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| Torque on ankle at loading response | show 🗑
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| show | A flexion torque is caused by the heel rocker action and the position of the body behind the foot
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| Torque on hip at loading response | show 🗑
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| Torque on ankle during mid stance | show 🗑
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| Torque on knee during mid stance | show 🗑
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| show | The contralateral swing limb moves the body past the stance limb leading to a change from a flexion to an extension torque. The adduction torque continues.
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Created by:
kaglad
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