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. Author manuscript; available in PMC: 2010 Jan 1.
Published in final edited form as: Exp Brain Res. 2008 Nov 5;192(2):293–298. doi: 10.1007/s00221-008-1615-2

Appendix 1.

a) Coefficients of Correlation – Averaged Across Subjects and Trials
IF% MVC) FI (%MVC) I/M I/R I/L M/I M/R M/L R/I RM R/L L/I L/M L/R
0 10 0.420 0.228 0.491 0.420 0.668 −0.602 0.392 0.687 0.367 0.903 0.414 0.959
0 20 0.904 0.871 0.609 0.899 0.908 0.287 0.813 0.930 0.836 0.944 0.819 0.967
0 30 0.941 0.918 0.666 0.920 0.940 0.274 0.892 0.875 0.824 0.928 0.852 0.967
0 40 0.920 0.814 0.652 0.887 0.830 −0.085 0.934 0.915 0.875 0.912 0.846 0.965
5 10 0.923 0.592 −0.002 −0.150 0.711 −0.702 0.195 0.863 0.551 0.770 0.201 0.838
5 20 0.858 0.837 0.399 0.623 0.861 −0.195 0.678 0.915 0.778 0.780 0.769 0.922
5 30 0.828 0.710 0.454 0.884 0.919 −0.095 0.847 0.908 0.877 0.807 0.740 0.951
5 40 0.919 0.591 −0.043 0.861 0.840 −0.426 0.838 0.852 0.908 0.850 0.731 0.861
10 10 0.326 0.128 −0.432 −0.245 0.622 −0.675 −0.274 0.638 0.469 0.326 0.509 0.884
10 20 0.847 0.731 0.192 0.740 0.915 −0.003 −0.211 0.506 0.752 0.629 0.753 0.883
10 30 0.782 0.696 0.044 0.742 0.853 −0.033 0.395 0.882 0.827 0.605 0.743 0.927
10 40 0.755 0.538 −0.188 0.739 0.840 −0.279 0.479 0.790 0.805 0.776 0.822 0.884
15 10 0.573 −0.152 −0.559 0.079 0.436 −0.500 −0.315 0.491 0.676 0.248 0.046 0.837
15 20 0.457 0.195 −0.225 0.333 0.547 −0.344 0.314 0.772 0.631 0.521 0.491 0.923
15 30 0.758 0.623 0.125 0.301 0.607 −0.418 0.162 0.800 0.740 0.510 0.657 0.919
15 40 0.594 0.667 0.057 0.838 0.913 0.270 0.330 0.789 0.593 0.273 0.526 0.945
20 10 0.374 −0.145 −0.462 −0.300 0.797 −0.711 0.155 0.842 0.171 −0.097 −0.229 0.706
20 20 0.799 0.689 −0.104 −0.152 0.709 −0.324 −0.064 0.641 0.592 0.350 0.331 0.862
20 30 0.347 0.144 −0.550 0.337 0.796 −0.390 0.187 0.568 0.606 0.021 0.018 0.831
20 40 0.387 0.105 −0.352 0.621 0.666 0.107 0.567 0.881 0.797 0.422 0.482 0.844
25 10 −0.580 −0.588 −0.617 −0.562 0.090 −0.873 −0.352 0.440 0.002 −0.028 0.016 0.722
25 20 −0.216 −0.409 −0.718 −0.160 0.539 −0.602 −0.160 0.580 0.378 0.075 −0.301 0.564
25 30 0.031 −0.167 −0.203 −0.290 0.343 −0.478 0.085 0.349 0.316 0.193 0.032 0.518
25 40 −0.122 −0.489 −0.784 0.085 0.385 −0.651 0.043 0.604 0.387 0.024 −0.018 0.434
b) Regression Coefficients – Averaged Across Subjects and Trials
Master/Slave Combination
IF (% MVC) FI (%MVC) I/M I/R I/L M/I M/R M/L RI R/M R/L L/I L/M L/R
0 10 0.067 0.049 0.008 0.141 0.079 −0.019 0.034 0.127 0.041 0.283 0.101 0.404
0 20 0.077 0.043 0.027 0.174 0.076 0.013 0.111 0.249 0.540 0.169 0.102 0.224
0 30 0.063 0.036 0.012 0.146 0.083 0.005 0.123 0.222 0.102 0.207 0.167 0.257
0 40 0.060 0.033 0.012 0.160 0.054 −0.006 0.184 0.315 0.138 0.143 0.143 0.362
5 10 0.161 0.073 0.045 −0.040 0.080 −0.073 0.016 0.208 0.047 0.169 0.057 0.178
5 20 0.071 0.028 0.006 0.056 0.074 −0.006 0.083 0.235 0.097 0.118 0.164 0.409
5 30 0.057 0.024 0.009 0.140 0.097 −0.005 0.160 0.342 0.126 0.308 0.299 0.371
5 40 0.074 0.024 −0.002 0.102 0.056 −0.026 0.051 0.278 0.157 0.132 0.137 0.221
10 10 0.036 0.003 −0.038 −0.103 0.045 −0.056 −0.082 0.218 0.062 0.071 0.108 0.214
10 20 0.045 0.008 −0.035 0.135 0.093 −0.003 −0.075 0.168 0.152 0.027 0.056 0.204
10 30 0.059 0.026 −0.001 0.129 0.092 −0.009 0.055 0.289 0.141 −0.016 0.034 0.188
10 40 0.045 0.017 −0.008 0.127 0.102 −0.018 0.064 0.328 0.205 0.181 0.214 0.370
15 10 0.023 −0.021 −0.044 −0.108 −0.031 −0.130 −0.087 0.097 0.121 0.043 −0.035 0.220
15 20 0.027 −0.002 −0.012 0.016 0.050 −0.025 −0.017 0.231 0.094 −0.034 0.075 0.287
15 30 0.061 0.026 −0.003 −0.016 0.059 −0.044 −0.017 0.304 0.106 0.016 0.122 0.232
15 40 0.061 0.017 −0.017 0.169 0.126 0.000 0.016 0.285 0.103 0.023 0.094 0.284
20 10 0.040 −0.031 −0.053 −0.150 0.156 −0.090 0.393 0.857 −0.030 −0.165 0.094 0.506
20 20 0.051 0.024 −0.053 −0.186 0.024 −0.085 −0.151 0.124 0.116 0.012 0.049 0.246
20 30 0.007 0.004 −0.036 −0.022 0.092 −0.061 −0.090 0.217 0.125 −0.062 0.054 0.278
20 40 0.019 0.005 −0.031 0.182 0.135 −0.014 0.129 0.360 0.166 0.059 0.147 0.285
25 10 −0.142 −0.083 −0.072 −0.196 −0.032 −0.154 −0.172 0.177 −0.020 −0.129 −0.038 0.273
25 20 −0.062 −0.100 −0.092 −0.047 0.032 −0.063 −0.013 0.318 0.055 −0.166 −0.134 0.098
25 30 −0.027 −0.098 −0.030 −0.132 −0.042 −0.143 −0.059 0.153 0.074 −0.137 0.015 0.124
25 40 −0.027 −0.053 −0.076 −0.106 −0.028 −0.117 −0.005 0.238 0.141 −0.097 0.022 0.262