Calibration of a Tibia-Based Phase Variable for Control of Robotic Transtibial Prostheses
Ryan R. Posh,Jonathan A. Tittle,James P. Schmiedeler,Patrick M. Wensing,Ryan R. Posh,Jonathan A. Tittle,James P. Schmiedeler,Patrick M. Wensing
Phase variable control based on global tibia kinematics holds promise for predicting gait cycle progression to continuously control robotic transtibial prostheses. Calibration of the phase variable is critical to ensure its monotonic behavior, to approach a linear relationship with gait percentage, and to accurately predict the percentage of gait. This paper compares four calibration approaches us...