Fig. 3
From: Optimizing exoskeleton assistance to improve walking speed and energy economy for older adults
Changes in self-selected walking speed, metabolic cost, and cost of transport with assistance. (A) Average increase in self-selected walking speed with assistance. (B) Average decrease in metabolic cost with assistance. (C) Average decrease in cost of transport with assistance. Comparisons across walking conditions were made using paired t-tests. Error bars show standard deviation. Statistical significance between conditions is denoted with *** for p ≤ 0.001 and ** for p ≤ 0.01. (D) Relative changes in self-selected walking speed, metabolic cost, and cost of transport with assistance. Diagonal lines indicate percent changes in cost of transport. Shaded region represents increased cost of transport with assistance. Participant numbers are ordered from greatest to least percent change in cost of transport