Study design: Cross-sectional. Objective: To analyze the relationships between functional tests, arm strength and root mean square of surface electromyography (EMG). Setting: Sao Paulo, Brazil. Methods: Twenty-four individuals with chronic tetraplegia participated. Upper extremity motor score (UEMS), functional independence measure (FIM) motor score, spinal cord independence measure III and capabilities of upper extremity (CUE) were performed. Muscle strength of the right elbow flexors-extensors was assessed using dynamometry and manual muscle test (MMT) and EMG of right biceps and triceps brachii were performed. Spearman's rank correlation coefficients and Mann-Whitney's U-test were used. Results: Functional tests and UEMS correlated strongly among them. UEMS highly correlated with triceps dynamometry and EMG. The dynamometry showed a very high correlation with MMT on the extensor group and a moderate correlation with flexor group. Triceps EMG showed moderate correlation with FIM and CUE. High correlations between triceps EMG and elbow extensors dynamometry and MMT were observed. A significant better performance on functional tests was observed on lower ASIA motor levels. The low-tetraplegia group showed a significant higher score on triceps EMG and dynamometry. Conclusion: Arm strength and EMG seem to be related to functional capabilities and independence in chronic tetraplegia.
A minha mãe, por ser a pessoa mais valiosa da minha vida. Meu eterno agradecimento pelo seu amor incondicional.Aos meus irmãos, Juliana e Felipe, por me apoiarem durante toda a vida. À Maria Victória, por me mostrar o que é a coragem. Vocês são meu orgulho.Para minhas queridas Lesocas, por serem o verdadeiro significado da palavra amizade. E especialmente à Eula, por saber que a distância não existe.A minha avó materna, por me fazer sorrir toda semana e ao meu avô (in memorian), por fazer parte das melhores lembranças da minha infância. Ao meu pai e meus avós paternos, por compreenderem minha ausência e me receberem sempre com um sorriso.Para toda minha família por acreditarem em mim. Meu singelo obrigado. À Nina, Chico, Bombril e Filó, meu amor por vocês é enorme e não menos importante.
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