Motion recognition for paraplegic patients wearing a powered lower limb orthosis in ascending and descending

We present the ascending and descending gait cycle of spinal cord injured(SCI) patients´ lower limb activities, an algorithm is proposed to estimate SCI patients´ motion intention incorporated with an active powered lower-limb orthoses to assist SCI patients to walk up and down stairs. Several sensor signals are measured and sent to trained artificial neural networks to recognize user´s motion and trigger the corresponding gait trajectory. Experiments are performed to verify its feasibility.