[1] Western Univ, Epidemiol & Biostat, London, ON, Canada
[2] Western Univ, Lawson Res Inst, Gait & Brain Lab, Med, London, ON, Canada
[3] Univ Sao Paulo, Fac Med Ribeirao Preto, Med, Ribeirao Preto, Brazil
[4] Western Univ, Physiotherapy, London, ON, Canada