Optimization of lower extremity kinetics during transfers using a wearable, portable robotic lower extremity orthosis: A case study

Abstract

The ability to transfer from sitting to standing (STS) is central to independent mobility and presents a significant, unique challenge to individuals post-stroke with residual unilateral lower-extremity weakness. We examined the effect of a novel, wearable robotic lower extremity orthosis on STS transfer kinetics, including paretic limb work, in a single post-stroke individual. The device appears to improve force allocation between paretic and non-paretic limbs during STS transfers, resulting in an optimal state of paretic limb engagement at a specific level of mechanical assistance from the device.