Abstract
We proved a lot of measurements at upper and lower limbs (UL, LL) which verify and refine our knowledge about lateral manifestation of cerebellar functions.The aim of this paper is to review and assess the previously used statistical tools to purpose of objective summary of results and comparison of methods. Objective basis for comparison is a definition of lateral groups (right-handed, left-handed and ambidextrous, respectively); such that is sufficiently sensitive for the representative collection of school children (N = 366) from primary schools in Prague and also for clinical collection of adults (N = 69) subjected to all types of measurements.
Unlike the previously used classification based on "100%” right-handed or left-handed (by concordant answers to 6 questions of E-questionnaire the most significant for “handedness”), we had used the symmetric definition of the lateral groups based on the sum of zero-unit partial scores of "right laterality" for all 10 questions of Edinburgh questionnaire (we defined: the "left handed" if the sum is less or equal to 2.5; the "right-handed" if the sum is more or equal 7.5, the rest are the "ambidextrous"). ANOVA for repeated measures of swings and for intensity of attenuation in free fall of the limbs from extension had confirmed the following results - 1 / more muscle tone laterally on dominant limbs (e.g. right for right-handed, left for left-handed men) for the forearm (in free fall from extension) and for the leg (in free fall of extension and after patellar reflex); - 2 / greater passivity (attenuation) on the right arm (regardless of affiliation to lateral group).