HKAFO

AcronymDefinition
HKAFOHip-Knee-Ankle-Foot-Orthosis
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Abbreviations: 3-D = three-dimensional, COM = center of mass, GRF = ground reaction force, HGO = hip guidance orthosis, HKAFO = hip-knee-ankle-foot orthosis, IRGO = isocentric reciprocating gait orthosis, RGO = reciprocating gait orthosis, ROM = range of motion, VA = Department of Veterans Affairs, VACMARL = VA Chicago Motion Analysis Research Laboratory.
RGOs are HKAFOs in which the hips are coupled by a mechanical linkage so that hip flexion provides coupled contralateral hip extension while keeping the knee and ankle fixed [52].
Locomotion can not be the reason for this high rate, because only 2 of the HKAFO users used it for locomotion outside, and 1 patient used it for locomotion inside.