Evaluación de la fuerza a través de la cinética del lactato y su correlación con el VO2max y frecuencia cardíaca en población con factores de riesgo: Implicaciones para la salud metabólica

Abstract

Purpose:to evaluate lactate kinetics through strength and determine the correlation with the VO2max test and heart rate in subjects with risk factors. Method:15 participants with an average age of 35.5/4.1. Height 1.78/0.09. Weight 72.1/12.9. They performed a maximum squat strength test and a maximum oxygen consumption test. In both cases blood lactate samples were analyzed. Results: the strength and endurance variables exhibit a significant relationship, indicating a direct connection with the energetic metabolism and applicable training parameters. A strong association was observed between maximum heart rate (FC max) in endurance and strength, with a coefficient of determination (R²) of 0.981 (p < 0.001). Furthermore, the relationship between lactate levels in endurance and strength was notable, with an R² of 0.971 (p < 0.001). The load (in kg) and speed (in K/h) demonstrated a perfect correlation, with an R² of 1.000 and p < 0.001. The repeated measures Anova test yielded a significant value of p < 0.005. These findings consistently support the interconnected influence of the measured variables, providing a deeper understanding of their connection and relevance in the training context. Conclusions: actate is shown to be a key marker in the evaluation of the physiological response during strength tests. can serve as a useful indicator to evaluate metabolic response and energy demand during strength tests. Additionally, considering its relationship with load and speed, lactate can help establish specific training zones.