Banca de DEFESA: JULIO CESAR BARBOSA DE LIMA PINTO

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
DISCENTE : JULIO CESAR BARBOSA DE LIMA PINTO
DATA : 03/03/2017
HORA: 09:00
LOCAL: Departamento de Educação Física/UFRN
TÍTULO:

PSYCHOPHYSIOLOGICAL STRESS IN YOUNG SOCCER PLAYER DURING SUCCESSIVE MATCHES

PALAVRAS-CHAVES:

Monitoring; Hormonal response; Internal load; salivary cortisol.

PÁGINAS: 50
GRANDE ÁREA: Ciências da Saúde
ÁREA: Educação Física
RESUMO:

Objective: To analyze the psychophysiological stress resulting from successive soccer matches and the influence of field time on the internal load response (subjective perception of session effort [session RPE], salivary cortisol and stress tolerance) in young players. Methodology: A total of 20 soccer athletes (16.8 ± 0.5 years, 172.9 ± 7.7cm, 65.0 ± 7.9kg, 8.3 ± 1.8% body fat, 53.1 ± 2.0ml.kg.min-1) Successive matches (J1 and J2), with a 24-hour interval. In order to determine the competitive internal load, salivary cortisol and the session RPE were used. The Daily Analysis of Life Demands in Athletes (DALDA) questionnaire was used to determine stress tolerance (TE), while time in field (TIF) was used to determine the external load. A total of 14 athletes who completed at least 15 minutes of play were retained for analysis. ANOVA of repeated measures compared the values of salivary cortisol in the different measures; the paired t-test was used to compare session RPE, TIF, CR-10 score, and salivary cortisol variation delta between matches. The Wilcoxon test was used to compare TE between matches. In a second moment, the group of players was divided according to the median of the time in field (greater time in field [GTF], n = 8, shorter time in field [STF], n = 6). Mixed ANOVA of repeated measures, compared the effect of the condition (greater or lesser time in the field), the effect of time and interaction for the variable salivary cortisol in the different groups. T-test for independent samples was used to compare the CR-10, Session RPE, TIF and the delta variables of salivary cortisol between the different groups, and the Mann-Whitney test for ET. Results: Salivary cortisol concentrations varied between the analyzed moments (p < 0.01). No differences were found between the delta variation of salivary cortisol (p = 0.36), session RPE (p = 0.23), RPE score (p = 0.50) and TE (p = 0.64) between matches. The cortisol value according to the division of the groups had an effect on time in the group with the longest field time in J1 (GTF: p = 0.009 and STF: p = 0.216) and in both groups in J2 (GTF: p < 0.001, and STF: p = 0.02), without interaction effect (p > 0.05). For the other variables, CR-10 score (p = 0.04) and session PSE (p <0.01) were different between groups in the first match. In the second match the session RPE (p < 0.01) was different, whereas the variable RPE score was not different (p = 0.06). In both games the delta was not different between the groups (p = 0.31 and p = 0.23), differently for the stress symptoms that differed in both games (p = 0.04 and p = 0.02). Conclusion: Successful games performed in a short period of time increase salivary cortisol concentrations; however, this increase does not seem to be due to the time in field in young athletes. In addition, the other variables of internal load did not suffer cumulative effects of successive matches.

 

MEMBROS DA BANCA:
Presidente - 1793257 - ARNALDO LUIS MORTATTI
Interno - 2682821 - EDUARDO CALDAS COSTA
Interno - 1989744 - HASSAN MOHAMED ELSANGEDY
Externo à Instituição - ALEXANDRE MOREIRA - USP
Externo à Instituição - LEONARDO DE SOUSA FORTES - UFPE