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. 2022 Aug 30;23:823. doi: 10.1186/s12891-022-05771-2

Fig. 5.

Fig. 5

Comparisons of the effect of walking durations on the PPG and PGA of the four plantar regions at three walking durations. A PPG at 1.8 mph walking speed. B PPG at 3.6 mph walking speed. C PGA at 5.4 mph walking speed. D PGA at 1.8 mph walking speed. E PGA at 3.6 mph walking speed. F PGA at 5.4 mph walking speed. Data are shown as mean ± standard errors. PPG, peak pressure gradient; PGA, pressure gradient angle; T1, first toe; M1, first metatarsal head; M2, second metatarsal head; and HL, heel