Banca de DEFESA: LUHANE SILVA DE MORAIS

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
DISCENTE : LUHANE SILVA DE MORAIS
DATA : 17/05/2019
HORA: 09:00
LOCAL: Departamento de Educação Física
TÍTULO:

SPECIALIZED TRAINING IN FOOTBALL: MORPHOLOGICAL ASPECTS RELATED TO YOUNG ATHLETES

PALAVRAS-CHAVES:

Bone tissue; Muscle tissue; Growth; Training Load and Adolescent.

PÁGINAS: 46
GRANDE ÁREA: Ciências da Saúde
ÁREA: Educação Física
RESUMO:

INTRODUCTION: The maturational process generates morphological changes in bone and muscle tissue which can be influenced by sports training. These changes in turn, depending on the external load of training or competition that the young athletes are submitted. Excessive loads may decrease the athletic performance and impair the athletes' health parameters. OBJECTIVE: To demonstrate the process of morphological adaptation during a season of training and competition in young athletes of the Sub-15 category. METHODS: Participants were 17 athletes [14.8 ± 0.4 years; 61.0 ± 9.6 kg; 171.2 ± 5.5 m; -0.2 (-0.4; 0.5) years from peak height velocity - YPHV monitored during 14 weeks of training (3 to 4 times per week / 120 min day). Internal training load (session PSE); the anthropometric measures for the evaluation of the peak of growth velocity (PVC); bone mineral density (BMD), bone mineral content (BMD), and muscle mass through DXA were analyzed. The monitoring was carried out in three moments: initial (pre-season - PS), preparation period (PP) and end of the competitive period (CP). Furthermore, the average intake of calcium through the Food Recall (R24h) and the level of physical activity by accelerometry were investigated. The paired Student's t-test was used to compare the average internal load between the Preparation Period and the Competitive Period; the repeated measures ANOVA followed by the Bonferroni post hoc to compare BMC and BMD over the three months and the linear correlation of Person to verify the association between PVC with BMD and BMC. RESULTS: The average internal load of the Periods of Preparation (PP) and Competitive Period (CP) were similar [1493.0 ± 148.5 vs. 1344.7 ± 311.9 u.a., t (16) = 2.109; p = 0.051]. The participants' caloric intake of calcium was 515.4 g (429.6 to 617.4 g). The level of physical activity was: sedentary (501.1 ± 91.4), mild (267.6 ± 50.5) and moderate-vigorous (54.2 ± 9.6) min / day. The CMO of the leg and trunk were higher in the competitive period compared to the preseason (p = 0.001) and (p = 0.011), respectively. The BMC of the whole body was higher in the competitive period compared to pre-season (p = 0.001) and the preparation period (p = 0.003). There was an increase in muscle mass from PT to PP (p = 0.021). There were no significant changes in BMD over the analyzed period (p = 0.174). There was a significant correlation between PVC and BMD values in the whole body, legs and trunk (r = 0.81, p <0.001, r = 0.81, p <0.001, r = 0.78, p <0.001) respectively between PVC and BMD (r = 0.59, p = 0.013). CONCLUSION: During the training and competition season an increase in BMC and muscle mass was observed, as expected by the maturational process, as seen by PVC. Although there were no changes in training load during the season, the training applied does not seem to have negatively influenced the process of bone mineralization, even in the presence of a low calcium intake presented by the players.

MEMBROS DA BANCA:
Interno - 1793257 - ARNALDO LUIS MORTATTI
Interno - 2627140 - BRENO GUILHERME DE ARAUJO TINOCO CABRAL
Interno - 2626634 - PAULO MOREIRA SILVA DANTAS
Externo à Instituição - ENIO RICARDO VAZ RONQUE - UEL
Externo à Instituição - LEONARDO DE SOUSA FORTES - UFPE