The study protocol consisted of 3-dimension (3D) gait analysis for 3 walking conditions: barefoot, in MBFT shoes, and in neutral shoes (Figure 1).
As expected, enrolled subjects walked faster on average with shoes than walked barefoot (walking speed (m/s): in MBFT shoe: 1.29 [+ or -] 0.11; in neutral shoe: 1.32 [+ or -] 0.13; barefoot: 1.23 [+ or -] 0.11; the difference between walking in neutral shoe and walking barefoot was significant on statistic, p < 0.05).
In most scenarios of joint angle SI analysis, though each subject's response in joint angle symmetry is quite individualized (Figure 2), the mean SI values of walking in MBFT shoe lied between those of walking barefoot and walking in neutral shoes (Table 1).
Again, in most scenarios of joint force SI analysis, walking in MBFT shoe had moderate SI values among the 3 tested conditions (Table 2).
Similarly, judging by the values of SI, walking in MBFT shoe had intermediate joint moment symmetry among the 3 tested conditions.
Furthermore, walking in MBFT shoes rate is intermediate in terms of gait symmetry tested among the 3 tested conditions in most scenarios.
Walking in the MBFT shoes has intermediate gait symmetry performance as compared to walking barefoot and walking in neutral running shoes and might be an ideal compromise for healthy adults, depending on user intentions.