ALENICE ROSA FERREIRA

Abstract:

Chronic Kidney Disease (CKD) is considered a social and economic problem worldwide, associated with numerous comorbidities. As a consequence of this disease, patients with CKD undergoing hemodialysis (HD) become more susceptible to changes in the musculoskeletal system, affecting the quality of life, general well-being and social life of these individuals. Among the most common alterations is the progressive loss of muscle strength and muscle mass, factors that predispose to the loss of functionality of these patients. The loss of strength may interfere with muscle functions that may influence the electromyographic activity of the muscles, however, this relationship is not yet fully elucidated. OBJECTIVE: The aim of this study is to establish a comparison between isometric muscle strength and electromyographic activity in dialytic patients and healthy individuals. METHODOLOGY: A cross-sectional study was conducted with dialysis patients of both sexes, compared to a control group, aged 30 to 59 years. The strength and the concomitant electrical activity of the dominant Tibial Anterior (TA), Lateral Gastrocnemius (GL), Medial Gastrocnemius (GM) and Soleus (SOL) muscles of the dominant limb were evaluated by dynamometry and electromyography (EMG), respectively. RESULTS: There was no statistical difference regarding the electromyographic activity of the plantar flexor and dorsiflexor muscles between the study groups. However, lower TA muscle strength was observed in dialysis patients when compared to the control group, as well as the positive association of strength with the electrical activity of these muscles and the inverse relationship with dialysis time. CONCLUSION: Patients with CKD in HD have reduced TA muscle strength, related to reduced TA muscle electrical activity and dialysis time.

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