About the Authors

Susan A. Novotny

golne003@umn.edu

Affiliation Program in Physical Therapy and Rehabilitation Sciences, University of Minnesota, Minneapolis, Minnesota, United States of America

Tara L. Mader

Affiliation Program in Physical Therapy and Rehabilitation Sciences, University of Minnesota, Minneapolis, Minnesota, United States of America

Angela G. Greising

Affiliation Program in Physical Therapy and Rehabilitation Sciences, University of Minnesota, Minneapolis, Minnesota, United States of America

Angela S. Lin

Affiliation Institute for Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, Georgia, United States of America

Robert E. Guldberg

Affiliation Institute for Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, Georgia, United States of America

Gordon L. Warren

Affiliation Department of Physical Therapy, Georgia State University, Atlanta, Georgia, United States of America

Dawn A. Lowe

Affiliation Program in Physical Therapy and Rehabilitation Sciences, University of Minnesota, Minneapolis, Minnesota, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: SAN GLW DAL. Performed the experiments: SAN GLW DAL TLM AGG ASL REG. Analyzed the data: SAN GLW DAL TLM AGG ASL REG. Contributed reagents/materials/analysis tools: GLW DAL ASL REG. Wrote the paper: SAN GLW DAL.