1. Division of Physical Medicine and Rehabilitation, Department of Surgical Sciences, University of Turin, Turin, Italy
2. Division of Endocrinology, Diabetology and Metabolism, Department of Medical Sciences, University of Turin, Turin, Italy
3. Biolab, Department of Electronics and Telecommunications, Politecnico di Torino, Turin, Italy
4. Neuromuscular Research Laboratory, Schulthess Clinic, Zurich, Switzerland