文献类型： 会议论文

第一作者： Rafael Escamilla-Nunez

作者： Rafael Escamilla-Nunez ¹ ; Alexandria Michelini ¹ ; Jan Andrysek ¹ ;

作者机构： 1.Institute of Biomaterials and Biomedical Engineering at University of Toronto

会议名称： Annual International Conference of the IEEE Engineering in Medicine and Biology Society

主办单位：

页码： 3281-3284

摘要： Lower limb prosthetic users exhibit gait deviations, which include asymmetrical stance time (ST), leading to secondary musculoskeletal problems. Biofeedback (BFB) systems have the potential to provide gait training to correct gait deviations. In this work, we describe a wearable BFB system that delivers vibrotactile feedback via two tactors (located at the anterior and posterior side of the residual limb of prosthetic users) to correct asymmetrical ST (%) using two strategies - single threshold feedback (SF) and bandwidth threshold feedback (BF). Validation of the system involved a sample of five lower limb amputees to examine the effectiveness of each strategy when compared to no feedback (NF) gait trials. Significant differences were found between no feedback and feedback trials. Although no significant differences were found between SF and BF, there are small but evident trends indicating that BF encourages ST (%) that is closest to the target with less error.

分类号： Q81-53