About the Authors

David M. Kietrys

Affiliation Department of Rehabilitation and Movement Sciences, University of Medicine and Dentistry of New Jersey, School of Health Related Professions, Stratford, New Jersey, United States of America

Ann E. Barr-Gillespie

Affiliation College of Health Professions, Pacific University, Hillsboro, Oregon, United States of America

Mamta Amin

Affiliation Department of Anatomy and Cell Biology, Temple University School of Medicine, Philadelphia, Pennsylvania, United States of America

Christine K. Wade

Affiliation Department of Physical Therapy, Thomas Jefferson University, Philadelphia, Pennsylvania, United States of America

Steve N. Popoff

Affiliation Department of Anatomy and Cell Biology, Temple University School of Medicine, Philadelphia, Pennsylvania, United States of America

Mary F. Barbe

mary.barbe@temple.edu

Affiliation Department of Anatomy and Cell Biology, Temple University School of Medicine, Philadelphia, Pennsylvania, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: DMK MFB AEBG. Performed the experiments: DMK MFB AEBG MA CKW. Analyzed the data: DMK MFB AEBG MA. Contributed reagents/materials/analysis tools: SNP. Wrote the paper: DMK MFB AEBG CKW SNP.