Table 2. Inter-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) 178.91 ± 38.25 0.77[0.59;0.9] 0.77[0.62;0.91] 21.38[19.55;23.21] 80 iAcc (UA. s) 4.47 ± 1.12 0.78[0.58;0.9] 0.78[0.62;0.91] 25.09[23.26;26.92] 70 MDF (Hz) FFT 65.71 ± 10.64 0.89[0.53;0.9] 0.89[0.76;0.95] 16.19[14.35;18.02] 10 CWT 77.6 ± 11.31 0.92[0.63;0.93] 0.92[0.82;0.96] 14.57[12.74;16.4] 10 MNF (Hz) FFT 72.71 ± 8.5 0.9[0.62;0.92] 0.9[0.79;0.95] 11.69[9.85;13.52] 10 CWT 82.34 ± 8.2 0.92[0.66;0.93] 0.92[0.82;0.96] 9.96[8.13;11.8] 10 MF (Hz) CWT 35.13 ± 16.9 0.8[0.53;0.88] 0.8[0.6;0.9] 48.09[46.26;49.93] 70 EnergyPeak (UA) FFT 3.28 ± 0.91 0.79[0.58;0.9] 0.79[0.64;0.92] 27.86[26.03;29.69] 50 CWT 2.5 ± 0.81 0.78[0.56;0.89] 0.78[0.61;0.91] 32.32[30.49;34.16] 70 EnergyTotal (UA·s) FFT 260.08 ± 67.38 0.67[0.47;0.87] 0.67[0.47;0.87] 25.91[24.08;27.74] / CWT 260.7 ± 66.01 0.71[0.54;0.89] 0.71[0.54;0.89] 25.32[23.49;27.15] / Damp (m·s-2·s-1) CWT 43.93 ± 9.35 0.75[0.52;0.88] 0.75[0.52;0.88] 21.29[19.45;23.12] 100 ST (s) CWT 0.07 ± 0.01 0.66[0.36;0.83] 0.66[0.36;0.83] 15.75[13.91;17.58] / GAS AccPeak (m·s-2) 64.46 ± 17.75 0.8[0.7;0.93] 0.78[0.59;0.9] 27.54[25.71;29.37] 20 iAcc (UA. s) 3.56 ± 0.63 0.81[0.62;0.91] 0.8[0.63;0.91] 17.63[15.8;19.47] 20 MDF (Hz) FFT 33.07 ± 5.39 0.75[0.5;0.88] 0.75[0.5;0.88] 16.31[14.48;18.14] 100 CWT 42.51 ± 7.82 0.85[0.54;0.9] 0.85[0.68;0.93] 18.38[16.55;20.22] 10 MNF (Hz) FFT 44.5 ± 5.23 0.86[0.49;0.89] 0.86[0.7;0.93] 11.75[9.91;13.58] 10 CWT 54.09 ± 7.04 0.85[0.52;0.9] 0.85[0.69;0.93] 13.01[11.18;14.85] 10 MF (Hz) CWT 18.47 ± 6.13 0.42[0.13;0.73] 0.42[0.13;0.73] 33.2[31.37;35.03] / EnergyPeak (UA) FFT 3.16 ± 0.78 0.82[0.51;0.89] 0.81[0.61;0.91] 24.73[22.9;26.56] 10 CWT 2.5 ± 0.52 0.78[0.6;0.91] 0.77[0.6;0.9] 20.66[18.83;22.49] 40 EnergyTotal (UA·s) FFT 118.14 ± 25.94 0.79[0.65;0.92] 0.79[0.61;0.91] 21.96[20.13;23.79] 20 CWT 128.42 ± 28.21 0.76[0.56;0.89] 0.76[0.55;0.89] 21.97[20.14;23.8] 20 Damp (m·s-2·s-1) CWT 23.41 ± 5.63 0.86[0.7;0.93] 0.86[0.68;0.93] 24.04[22.21;25.87] 20 ST (s) CWT 0.12 ± 0.02 0.55[0.21;0.77] 0.55[0.2;0.77] 16.86[15.03;18.7] / VL AccPeak (m·s-2) 68.89 ± 22.98 0.28[;0.07;0.63] 0.28[;0.07;0.63] 33.34[31.51;35.18] / iAcc (UA. s) 4 ± 0.7 0.63[0.42;0.85] 0.63[0.42;0.85] 17.42[15.58;19.25] / MDF (Hz) FFT 29.67 ± 5.27 0.73[0.48;0.87] 0.73[0.48;0.87] 17.77[15.93;19.6] / CWT 39.49 ± 5.98 0.62[0.32;0.81] 0.61[0.31;0.81] 15.15[13.31;16.98] / MNF (Hz) FFT 40.43 ± 5.41 0.57[0.23;0.78] 0.57[0.23;0.78] 13.39[11.55;15.22] / CWT 50.64 ± 6.48 0.5[0.16;0.74] 0.5[0.16;0.74] 12.8[10.96;14.63] / MF (Hz) CWT 17.3 ± 6.03 0.84[0.58;0.9] 0.84[0.67;0.92] 34.85[33.01;36.68] 20 EnergyPeak (UA) FFT 3.86 ± 0.91 0.66[0.42;0.85] 0.66[0.42;0.85] 23.53[21.7;25.37] / CWT 2.91 ± 0.59 0.56[0.28;0.8] 0.56[0.28;0.8] 20.22[18.39;22.05] / EnergyTotal (UA·s) FFT 125.56 ± 32.21 0.43[0.12;0.73] 0.43[0.12;0.73] 25.65[23.82;27.49] / CWT 133.98 ± 33.22 0.39[0.1;0.72] 0.39[0.1;0.72] 24.79[22.96;26.62] / Damp (m·s-2·s-1) CWT 17.16 ± 5.38 0.47[0.09;0.72] 0.45[0.07;0.71] 31.33[29.5;33.17] / ST (s) CWT 0.14 ± 0.02 0.57[0.24;0.78] 0.57[0.24;0.78] 17.53[15.7;19.36] / 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.