Proposta metodológica para avaliação quantitativa da fase rápida da curva força-tempo na preensão manual de pacientes com doença renal crônica

Abstract

The chronic kidney disease (CKD) is characterized by lost in kidney filtration capacity. These patients with CKD have decreased levels of muscle strength, physical functioning, which is connected with daily activities and quality of life. The physical activity can be employed as a non pharmacologic procedure, but to programming a physical training is necessary evaluated the features to be work. The standard of evaluations must be observed to ensure pureness of datum collected. The evaluation of strength-time curve can be one methodology used to clarify the muscle contraction behavior. So, we proposed a methodology of curve analysis of patients with CKD, using non linear and linear mathematic parameter mode, which when evaluated allow us make correspondence with muscle contraction physiology. The sample was determined by 31 patients (51±15 years old, 69,94±13,34 kg e 1,65±0,08 meters) with CKD and 4 individuals with high blood pressure (37 ± 14 years old, 75,1 ± 16,5 kg e 1,72 ± 0,12 meters), they were evaluated by handgrip test in 2 moments with 2 different dynamometers. Significative differences were not observe between values of maximal strength, between members and parameters [b] (p=0,18), [c] (p=0,35) e [d] (p=0,05). Merely the values of preload (p = 0,00000014),, of [a] parameter (p=0,00078), and the values of patients strength between dynamometers were significant different: right (p = 0,00003) and left (p = 0,0001). Using the parameters of strength-time curve become a methodology with good price, non-invasive and could be applied easily in the evaluations. The necessity of new instigations employed the analysis methods is evident.