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. 2017 Nov 14;17(2):559–576. doi: 10.1007/s10237-017-0978-3

Table 8.

Simulated peak and average plantar pressures (MPa) and their percentage changes (%) with respect to (w.r.t.) the baseline values in response to the change in Medial Gastrocnemius muscle force in ten plantar regions

Plantar region Medial gastrocnemius muscle force in N (percentage change w.r.t. baseline)
533.11 (- 10%) 562.73 (- 5%) 592.35 (baseline) 621.97 (+ 5%) 651.58 (+ 10%)
Peak plantar pressure in MPa (percentage change % w.r.t. baseline)
Heel-medial 0.222 (+ 2.30) 0.219 (+ 0.92) 0.217 0.213 (- 1.84) 0.211 (- 2.77)
Heel-lateral 0.201 (+ 12.29) 0.189 (+ 5.59) 0.179 0.178 (- 0.56) 0.175 (- 2.23)
Mid-foot 0.076 (+ 20.63) 0.067 (+ 6.35) 0.063 0.060 (- 4.76) 0.058 (- 7.94)
Meta 5 0.075 (- 11.76) 0.082 (- 3.53) 0.085 0.092 (+ 8.24) 0.096 (+ 12.94)
Meta 4 0.062 (- 13.89) 0.069 (- 4.17) 0.072 0.073 (+ 1.39) 0.074 (+ 2.78)
Meta 3 0.052 (- 1.89) 0.053 (- 0.01) 0.053 0.054 (+ 1.89) 0.056 (+ 5.66)
Meta 2 0.041 (- 6.82) 0.042 (- 4.54) 0.044 0.049 (+ 11.36) 0.053 (+ 20.45)
Meta 1 0.038 (- 7.32) 0.039 (- 4.88) 0.041 0.042 (+ 2.44) 0.043 (+ 4.88)
Toe 2–5 0.030 (- 3.33) 0.031 (- 0.01) 0.031 0.035(+ 12.90) 0.037 (+ 19.35)
Toe 1 0.049 (- 5.77) 0.051 (- 1.92) 0.052 0.053 (+ 1.92) 0.056 (+ 7.69)
Average plantar pressure in MPa (percentage change % w.r.t. baseline)
Heel-medial 0.185 (+ 1.09) 0.184 (+ 0.55) 0.183 0.181 (- 1.09) 0.179 (- 2.18)
Heel-lateral 0.145 (+ 5.07) 0.141 (+ 2.17) 0.138 0.137 (- 0.72) 0.135 (- 2.17)
Mid-foot 0.058 (+ 9.43) 0.055 (+ 3.77) 0.053 0.051 (- 3.77) 0.050 (- 5.66)
Meta 5 0.060 (- 7.69) 0.064 (- 1.54) 0.065 0.068 (+ 4.61) 0.069 (+ 6.15)
Meta 4 0.057 (- 8.06) 0.059 (- 4.84) 0.062 0.062 (+ 0.01) 0.063 (+ 1.61)
Meta 3 0.031 (- 3.12) 0.032 (- 0.01) 0.032 0.032 (+ 0.01) 0.033 (+ 3.12)
Meta 2 0.030 (- 6.25) 0.031 (- 3.12) 0.032 0.034 (+ 6.25) 0.036 (+ 12.5)
Meta 1 0.031 (- 6.06) 0.032 (- 3.03) 0.033 0.033 (+ 0.01) 0.034 (+ 3.03)
Toe 2–5 0.021 (- 0.01) 0.021 (- 0.01) 0.021 0.021 (+ 0.01) 0.023 (+ 9.52)
Toe 1 0.031 (- 3.12) 0.032 (- 0.01) 0.032 0.032 (+ 0.01) 0.034 (+ 6.25)