Reliability and Validity of a New Test for Muscle Power Evaluation of Stroke Patients

抄録

[Purpose] The purpose of this study was to establish an optimal load setting method for a 9-second modified-Wingate Anaerobic Test (m-WAnT) and to examine the reliability and validity of the test. [Subjects] The subjects were 28 hemiplegic stroke patients and 18 of them were examined as to the test's validity. [Methods] The m-WAnT was performed twice on two different days to calculate the Mean Power (MP). In order to derive an optimal load setting expression, multiple regression analysis was performed using the optimal load (a value roughly 10% higher than the torque value achieved at the time-point of 6 seconds) as the dependent variable and 6 items as the independent variables. The Five-Repetition Sit-to-Stand Test (FRSST) and Maximum Walking Speed (MWS) were measured and their correlations with were examined the MP. [Results] The ICC (1,1) of the MP of the first and second values of MP was 0.982 (95% CI, 0.961-0.991). The result of multiple regression analysis showed that the unaffected side and affected side LEPT were significantly related and the coefficient of determination (R²) was 0.812. MP significantly correlated with FRSST and MWS of the 18 subjects. [Conclusion] This study confirmed the reliability and validity of m-WAnT and derived the optimal load setting equation as well.