A randomized, controlled, single-blinded, in-subject controlled (A-B type) trial will be performed in patients with SCI receiving an upper extremities non-FES assisted exercise protocol compared with patients receiving upper extremities ergometry in combination with FES. Neurological and functional outcome measures will be obtained at baseline (time 0), after 1st 4 months of intervention (4 months), after 1 month washout (5 months),after 2nd 4 months intervention (9 months), and 3 month after completing the last intervention (12 months).