Abstract
Introduction: Transfemoral amputation causes cardiopulmonary, muscular and biomechanical changes that affect the physiology of physical exercise. The anaerobic threshold is one of the main indicators of the cardiopulmonary test (CPET), since it is the determinant of the balance between production and lactate removal, that is, the maximum intensity of exercise, thus determining the physical performance and ventilatory performance. The present study aims to analyze the Anaerobic Threshold (LA) of transfemoral amputees under different methods of analysis. Methodology: CPET was performed in seven unilateral transfemoral amputees using prosthesis (age 30 years ±4.89). The tests were performed in a cycle ergometer, with ramp protocol with effort measurement by the Borg Subjective Perceive Perception Scale, using the Vmax ergospirometer (CareFusion). The descriptive analysis of the data was performed by SPSS software. Results: The methods of visual graphical analysis and the method of automatic linear ventilation presented similar values in relation to the ventilatory variables, and the mathematical model and the visual graph obtained similar measures in the respiratory and cardiovascular aspects, determining the LA almost at the same time, being the Transfemoral amputee threshold is lower than predicted for age group. Conclusion: Thus, it is confirmed that the methods of graphical visual analysis and the heteroscedastic mathematical model are presented as gold standard for determination of LA, due to its sensitivity and reliability. Therefore, further studies on the determination of the anaerobic threshold in transfemoral amputees are required in order to compare with the findings in this study.
Description
This study analyzes the anaerobic threshold in transfemoral amputees using various methods.