Comparing Running-Specific and Traditional Prostheses During Running: Assessing Performance and Risk

The purpose of this research is to provide clinically, administratively, and field-relevant objective running outcomes by directly comparing running biomechanics of individuals with lower extremity amputation (ILEA) using RSPs (Running Specific Prostheses) and traditional prostheses. Within this purpose, the project has two specific aims: Specific Aim 1: To compare RSPs and traditional prostheses with respect to running ability and performance Specific Aim 2: To compare RSPs and traditional prostheses with respect to injury risks associated with running Hypothesis 1a: RSPs will outperform traditional prostheses at all velocities as measured by kinetic data (ground reaction forces, joint powers, joint and limb work) and 50m dash time. Hypothesis 1b: ILEA intact limbs and able-bodied control limbs will outperform residual limbs with RSPs and traditional prostheses at all velocities as measured by kinetic data. Hypothesis 2: Running with RSPs will show reduced acute and chronic injury risks compared to traditional prostheses at all velocities as measured by loading rates, EMG amplitudes, lumbopelvic kinematics, and modeled joint loads.