gait extra help

fulcrum for first rocker

calcaneus

first rocker

heel

second rocker

ankle

third rocker

forefoot

fourth rocker

toe rocker

what phase is 1st rocker in

IC LR

what phase is 2nd rocker in

MSt

what phase is 3rd rocker in

TMt

what phase is 4th rocker in

PSw

what force provides 15 degree of PF in the 4th rocker

passive elastic recoil (achilles tendon)

what position is the ankle in for toe clearance

neutral

motion of body without regard to the forces that it produces

kinematics

perpendicular distance between the axis of rotation and the line of force

moment arm

tissue property where stiffness increase as the speed of loading increase

rate sensitivity (viscoelasticity)

ratio of the internal moment arm to the external moment arm

mechanical advantage

a progressive strain of a material when exposed to a constant load over time

creep

at IC, the GRF is posterior to the ankle creating what

PF

during LR a posterior GRF created this kind of torque

flexion