Wearable Robotics: Challenges and Trends Proceedings of the 2nd International Symposium on Wearable Robotics, WeRob2016, October 18-21, 2016, Segovia, Spain - González-Vargas, José; Ibáñez, Jaime; Contreras-Vidal, Jose L.; van der Kooij, Herman; Pons, José Luis (Springer International Publishing : Imprint: Springer, 2017)