Replication Data for: Transtibial amputation increases the metabolic energy needed for stabilizing walking in the sagittal plane

Data and script for the statistical analysis of the paper: “Transtibial amputation increases the metabolic energy needed for stabilizing walking in the sagittal plane”. We assessed the metabolic cost (VCO2 and CO2 are available) of stabilizing walking against treadmill belt speed perturbations (SD=0.13 m/s) in 16 subjects with and 23 subjects without a transtibial amputation at three walking speeds between 0.6 and 1.6 m/s. In addition, we measured changes in the mean step length and step length variability. Perturbations induced 0.24 W/kg larger increases in energy consumption across walking speeds in subjects with than without a transtibial amputation. Whereas mean reductions in step length in response to perturbations were similar between groups, individuals with an amputation increased step length variability of their intact leg more, especially at low speeds, than individuals without an amputation.