KPE160H1 Lecture Notes - Lecture 9: Hip, Anatomical Terms Of Location, Varus Deformity
9 Mar 2019
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Definitions: recall definitions for, centre-of-gravity/mass, base-of-support, centre-of-pressure, forces and moments of forces, stance = position and manner in which a person stands, single stance = standing on one foot/lower extremity, double stance = standing on two feet/lower extremities. Review: 4-segment uniped: consider a 4-segment uniped in the sagittal plane, 3 le segments foot, leg, thigh, hat segment for head-arms-trunk , 3 joints ankle, knee, hip. Little evidence: performance reduced power if no glutes, ankle pfs contributing, isometric bi- articular muscles only transfer power. It is easiest for muscles to produce force when they are. Coronal plane moments of gravity: consider coronal plane moments on gravity in a biped. Kpe160: double stance, moments of gravity typically cancel left-to-right, little or no muscular activation required to balance, single stance, no left-to-right cancellation, gravity tries to push out (adduct) the hip pronates the foot. Coronal plane moments at rearfoot: depends on relative locations of cog/cop vs bos, can be varus, zero, or valgus.
