1. School of Engineering, University of Basque Country (UPV/EHU),Department of Electrical Engineering,Bilbao,Spain
2. University of La Rioja,Department of Mechanical Engineering,Logroño,Spain
3. Footwear Technology Center of La Rioja (CTCR),Smart Manufacturing Department,Arnedo,Spain
4. University of La Rioja,Center for Biomedical Research of La Rioja (CIBIR),Logroño,Spain