Fig. 3

Comparison of the net metabolic cost of walking in different walking conditions at minute 10. The amount of increase and decrease in the net metabolic costs as compared to NW and ZT is reported (blue for NW and orange for ZT). Statistically significant difference in the net metabolic cost of the walking trials as compared to NW and ZT is reported with blue and orange asterisks, respectively. * indicates p ≤0.05, ** indicates p ≤0.01, *** indicates p ≤0.001. It should be noted that the graph does not start from zero