About the Authors

Christopher J. Arellano

christopher_arellano@brown.edu

Current address: Ecology and Evolutionary Biology Department, Brown University, Providence, Rhode Island, United States of America

Affiliation Integrative Physiology Department, University of Colorado, Boulder, Colorado, United States of America

William J. McDermott

Affiliation Biomechanics Laboratory, The Orthopedic Specialty Hospital, Murray, Utah, United States of America

Rodger Kram

Affiliation Integrative Physiology Department, University of Colorado, Boulder, Colorado, United States of America

Alena M. Grabowski

Affiliations Integrative Physiology Department, University of Colorado, Boulder, Colorado, United States of America, Eastern Colorado Healthcare System, Denver, Colorado, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: WJM RK AMG. Performed the experiments: WJM RK AMG. Analyzed the data: CJA WJM AMG. Contributed reagents/materials/analysis tools: CJA WJM AMG. Wrote the paper: CJA WJM RK AMG.