1. Ingenieria Mecanica, Universidad de Ingenieria y Tecnologia—UTEC, Lima 15063, Peru
2. CIPER, Faculdade de Motricidade Humana, Universidade de Lisboa, 1649-004 Lisboa, Portugal
3. Department of Physics and Astronomy and Center for Theoretical Physics, Seoul National University, Seoul 08826, Republic of Korea
4. Department of Mechanical Engineering, University of Alberta, Edmonton, AB T6G 2R3, Canada
5. Department of Biomedical Engineering, University of Alberta, Edmonton, AB T6G 2R3, Canada
6. Glenrose Rehabilitation Hospital, Edmonton, AB T5G 0B7, Canada