**Author details**

Weilue He1 \*, Maria Paula Kwesiga1 , Eyerusalem Gebreyesus1 and Sijia Liu<sup>2</sup>

1 Department of Biomedical Engineering, Michigan Technological University, Houghton, MI, USA

2 Rehabilitation Medicine Center, West China Hospital, Sichuan University, Chengdu, China

\*Address all correspondence to: weilueh@mtu.edu

© 2019 The Author(s). Licensee IntechOpen. This chapter is distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/ by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
