LOPES. The work from R. Ronsse et al. [57] is the first application of
adaptive oscillators on a lower-limb assistive exoskeleton, LOPES.
LOPES is a THK frame-based treadmill-mounted exoskeletons with
actuated hip f/e, a/a and knee f/e [5]. It is put in the single-joint
system section, because the adaptive oscillators-based assistive
protocol tested with this exoskeleton is only applied to the hip,
without any influence from the other lower-limb joints, nor with
the help of ground reaction forces sensors.