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Table 4 Mean, standard deviation, effect size measure and correlation coefficient values with SARA scores of the extracted features from CA subjects and controls

From: A comprehensive scheme for the objective upper body assessments of subjects with cerebellar ataxia

Test Feature name Unit Subjects with CA \(n = 41\) Controls \(n = 14\) ES and p-value CA vs HC CC and p-value SARA-Total CC and p-value SARA-UL
FCT \(KiDe^{(L)}\) bits/s 2.683 ± 0.511 3.494 ± 0.431 1.646 (< 0.001*) − 0.572 (0.003*) − 0.663 (< 0.001*)
\(KiDe^{(R)}\) bits/s 2.517 ± 0.553 3.575 ± 0.352 2.070 (< 0.001*) − 0.504 (0.010*) − 0.380 (0.061)
\(ReTi^{X(L)}\) ms 1074 ± 292 761 ± 83 1.217 (< 0.001*) 0.610 (0.001*) 0.659 (< 0.001*)
\(ReTi^{X(R)}\) ms 1166 ± 332 740 ± 84 1.462 (< 0.001*) 0.358 (0.079) 0.223 (0.284)
\(ReTi^{Y(L)}\) ms 1076 ± 294 762 ± 85 1.211 (< 0.001*) 0.595 (0.002*) 0.641 (< 0.001*)
\(ReTi^{Y(R)}\) ms 1170 ± 334 743 ± 83 1.456 (< 0.001*) 0.360 (0.077) 0.228 (0.272)
\(DTWEr^{X(L)}\) px 1978 ± 648 (× 10) 1237 ± 182 (× 10) 1.299 (< 0.001*) 0.433 (0.031*) 0.394 (0.051)
\(DTWEr^{X(R)}\) px 2362 ± 853 (× 10) 1.201 ± 291 (× 10) 1.539 (< 0.001*) 0.305 (0.138) 0.086 (0.682)
\(DTWEr^{Y(L)}\) px 2277 ± 924 (× 10) 1.301 ± 253 (× 10) 1.202 (< 0.001*) 0.684 (<0.001*) 0.552 (0.004*)
\(DTWEr^{Y(R)}\) px 2705 ± 117 (× 10) 1.471 ± 250 (× 10) 1.209 (< 0.001*) 0.290 (0.159) 0.109 (0.604)
\(AcAlt^{X(L)}\) times 33.5 ± 12.5 22.1 ± 4.7 0.984 (< 0.001*) 0.522 (0.008*) 0.507 (0.010*)
\(AcAlt^{X(R)}\) times 35.7 ± 14.5 20.9 ± 2.9 1.163 (< 0.001*) 0.553 (0.004*) 0.271 (0.191)
\(AcAlt^{Y(L)}\) times 25.7 ± 11.7 16.1 ± 3.6 0.926 (< 0.001*) 0.275 (0.184) 0.317 (0.122)
\(AcAlt^{Y(R)}\) times 26.7 ± 12.1 14.1 ± 2.5 1.191 (< 0.001*) 0.202 (0.332) 0.105 (0.618)
FTT \(FuEn^{AcX(L)}\) nat 1.096 ± 0.321 1.422 ± 0.240 1.075 (< 0.001*) 0.345 (0.092) 0.117 (0.578)
\(FuEn^{AcX(R)}\) nat 1.147 ± 0.299 1.512 ± 0.348 1.175 (< 0.001*) 0.161 (0.442) − 0.043 (0.837)
\(FuEn^{AcZ(R)}\) nat 0.914 + 0.257 1.088 + 0.344 0.621 (0.049*) 0.569 (0.003*) 0.397 (0.049*)
\(FuEn^{GyX(R)}\) nat 0.107 + 0.065 0.168 + 0.098 0.824 (0.019*) 0.138 (0.509) − 0.068 (0.746)
DDKT \(RF^{AngY(R)}\) Hz 40.331 ± 15.166 23.212 ± 20.086 1.037 (0.002*) − 0.017 (0.936) − 0.033 (0.877)
\(MR^{AngX(R)}\) mV 10.945 + 10.046 6.675 + 7.174 0.453 (0.028*) 0.256 (0.216) 0.373 (0.066)
\(MR^{AngY(R)}\) mV 3.383 + 1.630 4.561 + 1.892 0.694 (0.029*) − 0.328 (0.110) − 0.292 (0.157)
\(RF^{AcZ(L)}\) Hz 1.900 + 1.245 2.187 + 1.104 0.237 (0.049*) − 0.322 (0.116) − 0.220 (0.291)
\(MR^{AcX(L)}\) mV 2.026 + 1.395 2.675 + 1.774 0.433 (0.033*) − 0.133 (0.527) − 0.068 (0.748)
\(MR^{AcX(R)}\) mV 1.965 ± 1.225 3.492 ± 2.023 1.045 (0.002*) − 0.031 (0.885) 0.104 (0.621)
\(MR^{AcZ(L)}\) mV 1.413 ± 0.441 1.892 ± 0.375 1.126 (< 0.001*) − 0.481 (0.015*) − 0.354 (0.083)
\(MR^{AcZ(R)}\) mV 1.550 ± 0.551 1.964 ± 0.399 0.800 (0.002*) − 0.345 (0.093) − 0.148 (0.481)
FNT \(RF^{AAcX(R)}\) Hz 3.289 ± 2.353 5.721 ± 3.417 0.916 (0.004*) 0.097 (0.644) 0.036 (0.866)
\(MR^{AAcX(L)}\) mV 5.151 ± 3.174 8.022 ± 3.018 0.915 (0.003*) − 0.295 (0.152) − 0.283 (0.170)
\(MR^{AAcY(L)}\) mV 7.879 ± 4.558 15.824 ± 5.116 1.690 (< 0.001*) − 0.429 (0.032*) − 0.483 (0.015*)
\(MR^{AAcY(R)}\) mV 8.809 + 5.296 12.805 + 5.122 0.761 (0.014*) − 0.369 (0.069) − 0.344 (0.092)
\(MR^{AAcZ(L)}\) mV 3.729 + 2.417 5.646 + 3.215 0.727 (0.028*) − 0.359 (0.078) − 0.467 (0.022*)
  1. Data are shown in mean ± standard deviation
  2. CA subjects with cerebellar ataxia, HC controls, ES effect size, CC correlation coefficient (Spearman)
  3. *p-value < 0.05