**9. Orthotic gait training protocol**

The training approach announced different among the studies on SCI population [51]. Training protocol has been performed different for powered and mechanical orthoses. Based on the time of the training program, five studies had a shorter training period [26, 45, 52–55], while several weeks to months were reported in other studies [32, 51]. Training protocol was being done on the different surfaces including sidewalk, grass, or stairs [56–58]. Yong et al. used the training protocol with powered gait orthosis on the treadmill to increase confidence of SCI subjects and improvement of the walking speed on them [59]. While in using powered gait orthosis, Arazpour et al*.* [60] performed upper extremity strengthening and lower extremity stretching as the main section of the training during orthotic gait rehabilitation. Further study on how different training programs affected the walking ability outcomes in the SCI patients will be beneficial in this field.

Orthotic training in SCI subjects can be reduced fatigue and fear of falling and increased the stepping [61]. It was announced that after training program, SCI subjects had walking ability and performance of activity of daily living. The SCI subjects may have less energy demand during walking with orthoses compared to without orthotic gait training condition [32].
