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National Repository of Grey Literature 1 records found  Search took 0.01 seconds. 
The motion pattern of abduction in the shoulder joint in overhead throwing of softball Extraliga players
 Hrdinová, Denisa ; Stupková, Michaela (advisor) ; Nováková, Tereza (referee)
Author: Bc. Denisa Hrdinová Title: The motion pattern of abduction in the shoulder joint in overhead throwing of softball Extraliga players Objectives:The aim of the thesis was to monitor and evaluate the difference in the sequence of tenses of muscle recruitment during the abduction in the shoulder joint between softball players and the general population, using surface electromyography (SEMG). A partial aim was to identify shortened muscle groups of the shoulder girdle and their influence on the timing of the abductors. Another partial aim was to evaluate the effect of shortened muscle groups on possible deficits in scapulohumeral rhythm of softball players. Methods: The experimental group (n=10) and the control group (n=10) with a total average age of 21.8 ± 1.81 (SD) participated in the kinesiological analysis with targeted examination of the shortened muscle groups and scapulohumeral rhythm. Followed by SEMG examination of muscle timing during abduction in the shoulder joint. Five muscles were monitored during 15 repetitions of motion at 70 bpm. The SEMG signal analysis was processed by rectification and smoothing in MyoResearch software by Noraxon v3.80 and statistical analysis performed in program Statistica 13.4. Results: 1. The difference in timing between the experimental and control...
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