[1] VA Long Beach Healthcare Syst, Orthopaed Biomech Lab, Long Beach, CA USA
[2] Univ Hosp Bern, Inselspital Bern, Freiburgstr, CH-3010 Bern, Switzerland
[3] Univ Bern, Univ Hosp Bern, Inselspital, Elbow & Orthopaed Sports Med, Bern, Switzerland
[4] Univ Zurich, Vetsuisse Fac, Musculoskeletal Res Unit, Zurich, Switzerland
[5] Congress Med Fdn, Orthopaed Biomech Lab, Pasadena, CA USA
[6] Sonnenhof Orthopaed, Elbow & Orthopaed Sports Med, Bern, Switzerland