About the Authors

James Y. Liao

Affiliations Department of Biomedical Engineering, Case Western Reserve University, Cleveland, Ohio, United States of America, Cleveland Functional Electrical Stimulation Center, Cleveland, Ohio, United States of America

Robert F. Kirsch

rfk3@case.edu

Affiliations Department of Biomedical Engineering, Case Western Reserve University, Cleveland, Ohio, United States of America, Cleveland Functional Electrical Stimulation Center, Cleveland, Ohio, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: JL RK. Performed the experiments: JL. Analyzed the data: JL. Contributed reagents/materials/analysis tools: JL. Contributed to the writing of the manuscript: JL RK.