Teodiano Freire Bastos-Filho received his degree in electrical engineering from the Universidade Federal do Espírito Santo, Vitória, Brazil, in 1987, and his Ph.D. in physical sciences from the Universidad Complutense de Madrid, Madrid, Spain, in 1994. He is with the Department of Electrical Engineering, Universidade Federal do Espírito Santo, Vitória, Brazil, and the Brazilian National Council for Scientific and Technological Development (CNPq). His research interests include signal processing, rehabilitation robotics, and assistive technologies. Dinesh K Kumar received his PhD from IIT Madras, and his PhD in biomedical engineering from IIT Delhi and AIIMS, Delhi. He is professor and leader of biomedical engineering at RMIT University, Melbourne, Australia. He has published over 330 refereed papers in the field, and his interests include muscle control, affordable diagnostics, and human computer interface. He is an editor of multiple journals, chairs a range of conferences related to biomedical engineering, and in his spare time enjoys walking in nature. Sridhar Poosapadi Arjunan received his B.Engg degree in electronics and communication from University of Madras, India in 2000; M.Engg degree in communication systems from Madurai Kamaraj University, India in 2002; and his PhD in biomedical signal processing from RMIT University, Australia in 2009. He is currently a post-doctoral research fellow with Biosignals Lab at RMIT University. He is a recipient of RMIT SECE Research Scholarship (2006-08), CASS Australian Early Career Researcher grant (2010), and Australia-India ECR fellowship (2013). His major research interests include biomedical signal processing, rehabilitation study, fractal theory, and human computer interface applications.