1. Institute of Biosciences Posture and Gait Studies Laboratory (LEPLO) São Paulo State University (Unesp) Rio Claro Brazil
2. Graduate Program in Movement Sciences São Paulo State University (Unesp) Rio Claro Brazil
3. Center for Human Movement Sciences University Medical Center GroningenUniversity of Groningen Groningen The Netherlands
4. Department of Neurology Oregon Health & Science University Portland OR USA