Table 3. Inter-day reliability of day one for heel impact signal and soft tissue vibration parameters. 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.
|
Variable |
Method |
Mean ± SD |
ICCmax 95%CI |
ICCmean 95%CI |
CV 95%CI |
N Step |
| INPUT |
AccPeak (m·s-2) |
177.04 ± 41.68 |
0.81[0.52;0.88] |
0.81[0.62;0.91] |
23.54[21.71;25.37] |
60 |
| iAcc (UA. s) |
4.43 ± 1.03 |
0.83[0.57;0.9] |
0.83[0.66;0.92] |
23.34[21.5;25.17] |
20 |
| MDF (Hz) |
FFT |
65.99 ± 9.78 |
0.75[0.51;0.88] |
0.74[0.5;0.88] |
14.83[12.99;16.66] |
60 |
| CWT |
78.03 ± 10.2 |
0.74[0.51;0.88] |
0.69[0.42;0.85] |
13.07[11.24;14.9] |
/ |
| MNF (Hz) |
FFT |
73.04 ± 7.52 |
0.71[0.46;0.86] |
0.69[0.42;0.85] |
10.29[8.46;12.13] |
/ |
| CWT |
82.62 ± 7.49 |
0.7[0.43;0.85] |
0.59[0.28;0.8] |
9.06[7.23;10.9] |
/ |
| MF (Hz) |
CWT |
35.35 ± 18.49 |
0.77[0.53;0.89] |
0.77[0.54;0.89] |
52.32[50.48;54.15] |
90 |
| EnergyPeak (UA) |
FFT |
3.27 ± 0.82 |
0.89[0.64;0.92] |
0.89[0.77;0.95] |
25.1[23.26;26.93] |
10 |
| CWT |
2.49 ± 0.75 |
0.9[0.6;0.91] |
0.9[0.8;0.96] |
30.03[28.2;31.86] |
10 |
| EnergyTotal (UA·s) |
FFT |
261.68 ± 78.48 |
0.82[0.56;0.89] |
0.82[0.63;0.91] |
29.99[28.15;31.82] |
60 |
| CWT |
261.11 ± 74.91 |
0.79[0.52;0.88] |
0.79[0.59;0.9] |
28.69[26.85;30.52] |
60 |
| Damp (m·s-2·s-1) |
CWT |
45.56 ± 8.77 |
0.7[0.42;0.85] |
0.7[0.42;0.85] |
19.25[17.42;21.09] |
/ |
| ST (s) |
CWT |
0.07 ± 0.01 |
0.18[;0.21;0.53] |
0.17[;0.22;0.52] |
14.28[12.45;16.12] |
/ |
| GAS |
AccPeak (m·s-2) |
72.33 ± 25.75 |
0.82[0.5;0.89] |
0.78[0.56;0.89] |
35.6[33.76;37.43] |
10 |
| iAcc (UA. s) |
4.11 ± 0.72 |
0.77[0.53;0.88] |
0.74[0.5;0.87] |
17.63[15.79;19.46] |
20 |
| MDF (Hz) |
FFT |
29.23 ± 4.38 |
0.76[0.52;0.88] |
0.76[0.54;0.89] |
14.99[13.16;16.83] |
20 |
| CWT |
38.35 ± 5.19 |
0.43[0.06;0.7] |
0.29[;0.1;0.61] |
13.52[11.69;15.36] |
/ |
| MNF (Hz) |
FFT |
39.54 ± 4.12 |
0.44[0.07;0.7] |
0.43[0.06;0.7] |
10.42[8.59;12.25] |
/ |
| CWT |
49.43 ± 5.54 |
0.25[0.14;0.42] |
0.15[0.02;0.24] |
11.21[9.38;13.04] |
/ |
| MF (Hz) |
CWT |
16.7 ± 5.63 |
0.84[0.56;0.89] |
0.84[0.68;0.93] |
33.73[31.89;35.56] |
40 |
| EnergyPeak (UA) |
FFT |
4.07 ± 0.96 |
0.72[0.46;0.86] |
0.69[0.42;0.85] |
23.56[21.73;25.39] |
/ |
| CWT |
3.03 ± 0.65 |
0.74[0.49;0.87] |
0.7[0.43;0.85] |
21.55[19.72;23.38] |
/ |
| EnergyTotal (UA·s) |
FFT |
129.06 ± 34.13 |
0.79[0.58;0.9] |
0.75[0.52;0.88] |
26.45[24.61;28.28] |
20 |
| CWT |
137.16 ± 34.15 |
0.62[0.32;0.81] |
0.59[0.27;0.79] |
24.9[23.06;26.73] |
/ |
| Damp (m·s-2·s-1) |
CWT |
16.81 ± 5.33 |
0.32[;0.11;0.65] |
0.19[;0.21;0.54] |
31.72[29.88;33.55] |
/ |
| ST (s) |
CWT |
0.15 ± 0.03 |
0.47[0.11;0.72] |
0.47[0.11;0.72] |
17.79[15.96;19.63] |
/ |
| VL |
AccPeak (m·s-2) |
76.09 ± 51.06 |
0.28[;0.11;0.6] |
0.18[;0.22;0.53] |
67.08[65.24;68.91] |
/ |
| iAcc (UA. s) |
3.93 ± 1.68 |
0.26[;0.14;0.58] |
0.17[;0.22;0.52] |
42.66[40.83;44.5] |
/ |
| MDF (Hz) |
FFT |
33.9 ± 5.75 |
0.68[0.4;0.84] |
0.68[0.4;0.84] |
16.96[15.12;18.79] |
/ |
| CWT |
42.96 ± 7 |
0.67[0.39;0.84] |
0.67[0.39;0.84] |
16.3[14.47;18.13] |
/ |
| MNF (Hz) |
FFT |
45.27 ± 6.09 |
0.6[0.28;0.8] |
0.6[0.28;0.8] |
13.45[11.62;15.29] |
/ |
| CWT |
54.35 ± 6.88 |
0.6[0.28;0.8] |
0.58[0.26;0.79] |
12.67[10.83;14.5] |
/ |
| MF (Hz) |
CWT |
18.68 ± 7 |
0.75[0.51;0.88] |
0.73[0.48;0.87] |
37.46[35.63;39.3] |
70 |
| EnergyPeak (UA) |
FFT |
3.56 ± 1.75 |
0.32[;0.07;0.63] |
0.2[;0.2;0.54] |
49.02[47.19;50.85] |
/ |
| CWT |
2.87 ± 1.45 |
0.22[;0.18;0.55] |
0.13[;0.26;0.49] |
50.7[48.87;52.53] |
/ |
| EnergyTotal (UA·s) |
FFT |
135.15 ± 73.88 |
0.23[;0.17;0.56] |
0.15[;0.24;0.51] |
54.65[52.82;56.49] |
/ |
| CWT |
148.62 ± 89.3 |
0.19[;0.23;0.55] |
0.13[;0.26;0.49] |
60.06[58.23;61.89] |
/ |
| Damp (m·s-2·s-1) |
CWT |
24.14 ± 6.52 |
0.71[0.4;0.88] |
0.52[0.11;0.78] |
26.8[24.97;28.63] |
/ |
| ST (s) |
CWT |
0.11 ± 0.03 |
0.25[;0.14;0.58] |
0.25[;0.14;0.58] |
22.89[21.06;24.73] |
/ |
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.