EMG analýza zádových svalů při různých variantách sedu

Abstract

Nazev: EMG analyza zadovych svalu pfi ruznych variantach sedu EMG Analysis of Back Muscles during various Types of Sitting Position Cil prace: Cilem prace je hodnoceni EMG aktivity zadovych svalu pfi sedu na zidli bez opory zad a pfi sedu na gymnastickem mici. Metoda: Povrchova elektromyografie - snimani svalove aktivity zadovych svalu 20 minut vsede na zidli a 20 minut vsede na gymnastickem mici. Vysledky: Pfi porovnani EMG aktivity zadovych svalu pfi sedu na zidli bez opory zad a pfi sedu na gymnastickem mici byla zaznamenana vyssi aktivita (v % MVC) u sedu na zidli. Vcasnejsi nastup unavy zadovych svalu je pfi sedu na mici. Klicova slova: sed, gymnasticky mic, povrchova elektromyografie,zadove svaly Key words: sitting position, gymball, surface electromyography, back muscles

Title: EMG Analysis of Back Muscles during various Types of Sitting Position Purposes: The purpose of the thesis is the assessment of EMG activity of back muscles while sitting on a chair without any back support, and while sitting on a gymball. Methods: Surface electromyography - recording EMG activity of back muscles (20 minutes sitting on a chair and 20 minutes sitting on a gymball). Results: The mean muscle activity of all probands while sitting on a chair is higher than while sitting on a gymball. Muscle fatigue of back muscles occurs faster when sitting on a gymball than when sitting on a chair. Key words: sitting position, gymball, surface electromyography, back muscles