About the Authors

Jason J. Kutch

Affiliation Division of Biokinesiology & Physical Therapy, University of Southern California, Los Angeles, California, United States of America

Francisco J. Valero-Cuevas

valero@usc.edu

Affiliations Division of Biokinesiology & Physical Therapy, University of Southern California, Los Angeles, California, United States of America, Department of Biomedical Engineering, University of Southern California, Los Angeles, California, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: JJK FJVC. Performed the experiments: JJK FJVC. Analyzed the data: JJK FJVC. Contributed reagents/materials/analysis tools: JJK FJVC. Wrote the paper: JJK FJVC.