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An illustration of how lower limb muscles are controlled by central nervous system during the gait cycle. Reprinted with permission from Ref. (Al-Shuka et al., 2019). The figure illustrates the two walking phases: The stance and Swing phases. Sub-phases of the Stance phase are indicated in the figure: initial contact IC, opposite toe off OT, heel rise HR, and opposite initial contact OI. Sub-phases of the Swing phase are toe-off TO, feet adjacent FA, and tibia vertical TV.
