About the Authors

Patrick D. Wettenschwiler

patrick.wettenschwiler@empa.ch

Affiliations Empa, Swiss Federal Laboratories for Materials Science and Technology, St. Gallen, Switzerland, Institute for Biomechanics, ETH Zurich, Zurich, Switzerland

Silvio Lorenzetti

Affiliation Institute for Biomechanics, ETH Zurich, Zurich, Switzerland

Rolf Stämpfli

Affiliation Empa, Swiss Federal Laboratories for Materials Science and Technology, St. Gallen, Switzerland

René M. Rossi

Affiliation Empa, Swiss Federal Laboratories for Materials Science and Technology, St. Gallen, Switzerland

Stephen J. Ferguson

Affiliation Institute for Biomechanics, ETH Zurich, Zurich, Switzerland

Simon Annaheim

Affiliation Empa, Swiss Federal Laboratories for Materials Science and Technology, St. Gallen, Switzerland

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: PDW SL RS RMR SJF SA. Performed the experiments: PDW SL. Analyzed the data: PDW SL RS RMR SJF SA. Contributed reagents/materials/analysis tools: PDW SL RS. Wrote the paper: PDW SL RS RMR SJF SA.