Extended Data Fig. 5: Exoskeleton comparison for standardized walking conditions.
From: Personalizing exoskeleton assistance while walking in the real world
We compared the benefits of Real-world Optimized assistance from the untethered exoskeleton under standardized laboratory conditions to those of prior untethered exoskeletons10,11,12,13,14,15,16. We considered only the results of tests that: compared exoskeleton-assisted outcomes to walking in normal shoes without an exoskeleton; used standard indirect respirometry procedures; had sufficient sample sizes; and applied walking conditions within 10% of the chosen walking speeds and inclines in this study, which were chosen to allow comparison to the largest prior improvements in metabolic rate. For legibility, in this figure we depict only results within a 5% reduction in net metabolic cost of the best prior results for each category. Please see the Methods subsection “Comparison to other untethered exoskeletons” for a complete explanation of the methods used to select amongst prior exoskeleton experiments. Real-world Optimized assistance from the untethered exoskeleton resulted in large improvements in energy cost.
