About the Authors

Michael Sherback, Raffaello D'Andrea
Institute for Dynamic Systems and Control, ETH-Zurich, Zurich, Switzerland

Francisco J. Valero-Cuevas
Department of Biokinesiology and Physical Therapy, University of Southern California, Los Angeles, California, United States of America

Francisco J. Valero-Cuevas
Department of Biomedical Engineering, University of Southern California, Los Angeles, California, United States of America

Corresponding Author

sherback@idsc.mavt.ethz.ch

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

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