TY - JOUR PY - 2022// TI - Safety and feasibility of a novel exoskeleton for locomotor rehabilitation of subjects with spinal cord injury: a prospective, multi-center, and cross-over clinical trial JO - Frontiers in neurorobotics A1 - Chen, Sijing A1 - Wang, Zhanbin A1 - Li, Yongqiang A1 - Tang, Jiashuai A1 - Wang, Xue A1 - Huang, Liping A1 - Fang, Zhuangwei A1 - Xu, Tao A1 - Xu, Jiang A1 - Guo, Feng A1 - Wang, Yizhao A1 - Long, Jianjun A1 - Wang, Xiaodong A1 - Liu, Fang A1 - Luo, Jianfeng A1 - Wang, Yulong A1 - Huang, Xiaolin A1 - Jia, Zishan A1 - Shuai, Mei A1 - Li, Jianan SP - e848443 EP - e848443 VL - 16 IS - N2 - OBJECTIVE: To evaluate the safety, walking efficiency, physiological cost, don and doff time cost, and user satisfaction of Ai-robot.

DESIGN: Prospective, multi-center, and cross-over trial. SUBJECTS: Paraplegic subjects (n = 40) with T6-L2 level spinal cord injury.

METHODS: Subjects who could walk independently using Aiwalker, Ailegs, and hip knee ankle foot orthosis (HKAFO) for 6 min within 30 days of training underwent 10 sets of tests. In each set, they completed three 6-min walk test (6MWT) sessions using the three aids in random order.

RESULTS: Skin lesions, pressure sores, and fractures, were the main adverse events, likely due to a lack of experience in using exoskeleton systems. The average 6MWT distances of the Aiwalker, Ailegs, and HKAFO groups were 134.20 ± 18.74, 79.71 ± 18.06, and 48.31 ± 19.87 m, respectively. The average heart rate increases in the Aiwalker (4.21 ± 8.20%) and Ailegs (41.81 ± 23.47%) groups were both significantly lower than that in the HKAFO group (62.33 ± 28.32%) (both p < 0.001). The average donning/doffing time costs for Ailegs and Aiwalker were significantly shorter than that of HKAFO (both p < 0.001). Satisfaction was higher in the Ailegs and Aiwalker groups (both p < 0.001).

CONCLUSION: Subjects with paraplegia below T6 level were able to ambulate safely and efficiently with Ai-robot. The use of Ai-robot should be learned under the guidance of experienced medical personnel.

Language: en

LA - en SN - 1662-5218 UR - http://dx.doi.org/10.3389/fnbot.2022.848443 ID - ref1 ER -