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Table 2 Comparison of ankle dorsiflexor strength, RMSE scores, and GFA values between baseline and retention tests

From: Brain white matter correlates of learning ankle tracking using a wearable device: importance of the superior longitudinal fasciculus II

   Baseline test Retention test Sex main effect Time main effect Time*Sex Interaction
  Male Female Male Female
Ankle dorsiflexor strengtha 27.714 ± 7.064 19.805 ± 3.866 26.967 ± 4.770 21.097 ± 2.958 0.111 0.008* 0.111
RMSE
 Repeated sequence 0.058 ± 0.013 0.060 ± 0.014 0.036 ± 0.008 0.036 ± 0.007 0.753 0.000* 0.656
 Random sequence 0.056 ± 0.012 0.059 ± 0.017 0.037 ± 0.008 0.035 ± 0.008 0.882 0.000* 0.324
GFA of association fibers
 R ILF 0.409 ± 0.051 0.386 ± 0.038 0.418 ± 0.057 0.387 ± 0.033 0.145 0.182 0.298
 R SLF I 0.513 ± 0.037 0.507 ± 0.026 0.513 ± 0.040 0.501 ± 0.023 0.466 0.293 0.359
 R SLF II 0.432 ± 0.044 0.434 ± 0.025 0.435 ± 0.042 0.438 ± 0.022 0.874 0.039* 0.756
 R SLF III 0.406 ± 0.059 0.401 ± 0.031 0.408 ± 0.054 0.402 ± 0.033 0.747 0.599 0.777
GFA of projection fibers
 R CST-toe 0.596 ± 0.031 0.575 ± 0.027 0.609 ± 0.027 0.578 ± 0.030 0.046* 0.011* 0.120
 R FS-DLPFCa 0.484 ± 0.037 0.476 ± 0.021 0.478 ± 0.038 0.472 ± 0.021 0.561 0.005* 0.481
 R FS-precentral 0.481 ± 0.029 0.446 ± 0.024 0.480 ± 0.042 0.442 ± 0.028 0.831 0.443 0.831
 R TR-DLPFC 0.520 ± 0.033 0.509 ± 0.020 0.515 ± 0.034 0.504 ± 0.017 0.272 0.021* 0.919
  1. aBaseline value was used as covariate because of baseline sex differences. Data are presented as mean ± SD
  2. *p < 0.05
  3. CST: corticospinal tract; DLPFC: dorsolateral prefrontal cortex; FS: frontal-striatum; GFA: general fractional anisotropy; ILF: inferior longitudinal fasciculus; R: right; RMSE: root-mean-squared-error; SLF: superior longitudinal fasciculus; TR, thalamic radiation