7. Lower limb wearable devicesMost of the wearable exoskeleton technologies for the lower limbs have their genesis in the spinal cord injury population, where the devices were intended to restore ambulation to individuals with paraplegia. The Re Walk is a wearable exoskeleton that integrates a lightweight frame actuated at the hip and knee.The device offers variable assistance and initiates ambulation by a tilt sensor, which senses forward motion at the trunk. Another commercial device intended for individuals with spinal cord injury is the Indego (Parker Hannifin), which uses a modular design for easy setup and breakdown.