Performance monitoring of high-level athletes from physiological parameters

Author(s)

João Paulo Loures

• Document type: Doctoral Thesis
• Press: Ribeirão Preto.
• Institution: Universidade de São Paulo (USP). Faculdade de Medicina de Ribeirão Preto (PCARP/BC)
• Defense date: 2019-07-22

Examining board members

Marcelo Papoti; Heros Ribeiro Ferreira

• Advisor: Marcelo Papoti

Abstract

Two perspectives of parameters used to investigate the variations of performance during the period of observation, being during Olympic cycle and another athletes submitted the Ambiental stress (altitude) , in the first we observed the modality of canoeing Slalom with the objective of identifying which effects of the training in elite athletes canoeing during cycle Olympic, on the physiological and psychological responses and their relations with performance. To this end, 23 athletes from the national Slalom kayak team were recruited and 3 workouts were made. The first investigated the effects of six weeks of training on heart rate variability (HRV) and its relationship to simulated test performance. Positive effects of the pre and post training situation were found in relation to the performance, considering or not the penalties during simulated test (95.9 ± 18.1, 93.6 ± 11.84) p = 0.027 and (94.9 ± 16, 8; 92.8; 13.55) p = 0.008, respectively. However, no changes were found in the autonomic parameters and there were no relations with the performance. The second studies had as objective to test the = ten x 10s, test used in practice and to verify the possible relations with the performance in simulated trial of Slalom canoeing. The main findings of this study were the possibility of determining the peak power (PP), mean and fatigue index, in addition the significant inverse correlations (PP, PM, velocity and routing frequency) between the test parameters with the performance, however when penalties are considered in the simulated test these correlations decrease, reinforcing the need to consider the multidisciplinary of the modality. The third studies investigated psychological parameters (state of mood) and their possible relations with performance in canoe and kayak modalities. The results showed no significant difference between the modalitiesand also that the vigor is the parameter that presents higher values and only that showed a significant relation with the performance in the canoe. Based on the results presented, it is possible to conclude that the training period was effective in improving the performance, that during a six-week training session the HRV did not significant changes, however it is an interesting evaluation tool, ten x 10s used in practice presented an evaluation tool and also able to predict performance. The results also reinforce the need for further investigations in the modality and also that success in performance is dependent on many factors. In the international perspective, we analyzed athletes from Denmark who underwent altitude exposure in addition to erythropoietin supplementation, who were evaluated for 24 weeks. The objective was to identify possible biochemical and performance changes during this period. The results presented are in the process of being analyzed together with the University of Copenhagen, but the preliminary results presented in this thesis show that altitude caused an increase in the maximum VO2 as well as PO2 and PCO2 while the other variables did not observe significant differences, it is still necessary to analyze the effect of rHuEPO on supplemented individuals and placebos. Regarding performance, we observed significant changes at 30m and 5000m after the period of exposure to hypoxia, while the performance at 400m was not altered. It is possible to affirm that the altitude influences in the performance of short and long distance (AU)

• FAPESP's process: 16/14532-2 - MONITORING THE PERFORMANCE OF HIGH LEVEL ATHLETES FROM PHYSIOLOGICAL PARAMETERS
• Grantee: João Paulo Loures
• Support Opportunities: Scholarships in Brazil - Doctorate