Table 1. Intra-trial reliability of day one for heel impact signal and soft tissue vibration parameters. Variable Method Mean ± SD ICCmax 95%CI ICCmean 95%CI CV 95%CI N Step INPUT AccPeak (m·s-2) 184.01 ± 46.87 0.72[0.59;0.84] 0.7[0.58;0.83] 25.47[23.8;27.15] / iAcc (UA. s) 4.66 ± 1.23 0.93[0.88;0.96] 0.88[0.81;0.93] 26.3[24.63;27.98] 10 MDF (Hz) FFT 66.5 ± 11.78 0.8[0.63;0.87] 0.74[0.63;0.86] 17.72[16.04;19.4] 10 CWT 78.68 ± 11.72 0.85[0.73;0.91] 0.82[0.73;0.9] 14.89[13.22;16.57] 10 MNF (Hz) FFT 73.17 ± 8.95 0.86[0.76;0.92] 0.82[0.73;0.9] 12.24[10.56;13.91] 10 CWT 83.03 ± 8.36 0.88[0.78;0.93] 0.85[0.76;0.92] 10.07[8.39;11.74] 10 MF (Hz) CWT 37.79 ± 25.5 0.51[0.38;0.68] 0.46[0.34;0.64] 67.49[65.81;69.16] / EnergyPeak (UA) FFT 3.42 ± 1.02 0.91[0.85;0.95] 0.85[0.77;0.92] 29.79[28.11;31.46] 10 CWT 2.63 ± 0.93 0.91[0.85;0.95] 0.85[0.77;0.92] 35.33[33.66;37.01] 10 EnergyTotal (UA·s) FFT 274.31 ± 82.65 0.88[0.81;0.94] 0.84[0.75;0.91] 30.13[28.45;31.8] 10 CWT 276.88 ± 79.68 0.89[0.82;0.94] 0.84[0.76;0.92] 28.77[27.1;30.45] 10 Damp (m·s-2·s-1) CWT 44.84 ± 12.02 0.64[0.5;0.79] 0.51[0.37;0.68] 26.8[25.12;28.47] / ST (s) CWT 0.07 ± 0.01 0.59[0.43;0.75] 0.39[0.27;0.57] 21.15[19.48;22.83] / GAS AccPeak (m·s-2) 73.92 ± 29.51 0.85[0.76;0.92] 0.78[0.68;0.88] 39.91[38.24;41.59] 10 iAcc (UA. s) 4.19 ± 0.88 0.8[0.69;0.89] 0.8[0.69;0.89] 20.94[19.26;22.62] 10 MDF (Hz) FFT 29.69 ± 4.87 0.84[0.71;0.9] 0.82[0.73;0.9] 16.4[14.73;18.08] 10 CWT 39.86 ± 6.1 0.81[0.67;0.88] 0.81[0.71;0.9] 15.31[13.64;16.99] 10 MNF (Hz) FFT 40.72 ± 5.21 0.84[0.7;0.9] 0.83[0.74;0.91] 12.8[11.13;14.48] 10 CWT 51.39 ± 7.25 0.89[0.75;0.92] 0.88[0.82;0.94] 14.11[12.43;15.79] 10 MF (Hz) CWT 16.94 ± 6.67 0.67[0.53;0.82] 0.59[0.45;0.74] 39.39[37.72;41.07] / EnergyPeak (UA) FFT 4.08 ± 1.18 0.86[0.78;0.93] 0.83[0.74;0.91] 28.81[27.14;30.49] 10 CWT 3.06 ± 0.77 0.81[0.7;0.9] 0.78[0.68;0.88] 25.02[23.35;26.7] 10 EnergyTotal (UA·s) FFT 132.65 ± 38.46 0.83[0.73;0.91] 0.79[0.68;0.88] 28.99[27.31;30.67] 10 CWT 142.74 ± 39.05 0.81[0.7;0.9] 0.76[0.65;0.87] 27.36[25.68;29.03] 10 Damp (m·s-2·s-1) CWT 17.77 ± 8.34 0.6[0.47;0.76] 0.56[0.43;0.73] 46.95[45.27;48.63] / ST (s) CWT 0.14 ± 0.03 0.53[0.39;0.71] 0.49[0.36;0.67] 24.58[22.91;26.26] / VL AccPeak (m·s-2) 67.1 ± 22.91 0.64[0.48;0.78] 0.58[0.45;0.74] 34.14[32.47;35.82] / iAcc (UA. s) 3.68 ± 0.77 0.7[0.57;0.82] 0.67[0.55;0.81] 20.96[19.29;22.64] / MDF (Hz) FFT 32.35 ± 5.47 0.77[0.66;0.88] 0.75[0.64;0.86] 16.91[15.24;18.59] 10 CWT 41.36 ± 6.94 0.8[0.69;0.89] 0.8[0.71;0.89] 16.78[15.11;18.46] 10 MNF (Hz) FFT 43.94 ± 5.41 0.8[0.7;0.9] 0.77[0.67;0.87] 12.3[10.63;13.98] 10 CWT 53.06 ± 6.42 0.84[0.76;0.92] 0.84[0.75;0.91] 12.1[10.42;13.78] 10 MF (Hz) CWT 18.89 ± 8.44 0.6[0.44;0.76] 0.51[0.38;0.69] 44.7[43.02;46.37] / EnergyPeak (UA) FFT 3.28 ± 0.96 0.69[0.56;0.82] 0.69[0.56;0.82] 29.2[27.53;30.88] / CWT 2.61 ± 0.6 0.66[0.52;0.8] 0.62[0.49;0.77] 22.95[21.28;24.63] / EnergyTotal (UA·s) FFT 121.13 ± 30.83 0.71[0.58;0.83] 0.68[0.55;0.81] 25.45[23.77;27.13] / CWT 130.11 ± 32.11 0.71[0.58;0.83] 0.67[0.54;0.8] 24.68[23;26.36] / Damp (m·s-2·s-1) CWT 22.91 ± 6.4 0.57[0.4;0.74] 0.5[0.36;0.68] 27.93[26.26;29.61] / ST (s) CWT 0.12 ± 0.03 0.47[0.32;0.67] 0.32[0.22;0.5] 26.33[24.65;28] / INPUT: heel impact signal; GAS: gastrocnemius medialis; VL: vastus lateralis; AccPeak: peak acceleration; iAcc: integrated acceleration; MDF: median frequency; MNF: mean frequency; MF: median frequency; ST: setting time. Damp: damping coefficient. /: never reach ICC at 0.75 within 100-steps.