As a consequence, further research is needed to determine the relationship between changes in motor performance and qualitative EMG variables due to motor practice.
Irrespective of the investigated myoelectric parameter (i.e., amplitude and duration) and muscle (i.e., agonist and antagonist), our analyses revealed small-sized correlations between changes in motor performance and muscle activity following motor practice.
Additionally, besides the mentioned changes in qualitative myoelectric parameters, adaptations in kinetic (e.g., joint torques, forces) and kinematic (e.g., joint positions, angles, angular velocity, acceleration) variables might have influenced our findings of small-sized correlations between changes in motor performance and muscle activity following practice.
Consequently, apparent effects of a slight decrease in arousal would most likely be expected in the DLPFC, hence explaining the negative correlations between changes in behavioural performance and changes in CBSI concentrations for the patients.
No significant correlation was found between the changes in performance on the WISC-III (including 13 subtests, VCI, POI, FDI, PSI, FIQ, VIQ, and PIQ) and the severity of ADHD symptoms as measured by the ADHD-Rating scale and CGI-S (Table 5).
There was no clear correlation between changes in Yo-YoIR2 performance and either PV, Hbmass or BV (figure 5).
Further, a significant relationship between changes in ΔCBF/ΔCMRO2 and performance suggests that age-related ΔCBF/ΔCMRO2 changes observed at the physiological level play a central role in age-related processing efficiency reductions observed at the behavioral level.
Moderate to large effect size correlations between changes in CK and performance analysis and GPS measures from match play are displayed in Tables 2 and 3, respectively.> -wrap-foot>> -wrap-foot> Level of significance *p < 0.05; **p < 0.01.
Further, between-session learning-related changes in performance were unrelated to T levels, and circadian changes in T were unrelated to changes in spatial performance in either sex.
No correlation was found between change in cognitive performance and difference in ICP from baseline.
