Banca de DEFESA: Hiury Caio Pinheiro Brandão

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : Hiury Caio Pinheiro Brandão
DATE: 31/07/2023
TIME: 14:00
LOCAL: Sala 47 FEF/UnB
TITLE:

The correlation between Rate of Force Development Maximal Strength and Electromyographic Variables in Basketball Athletes.

KEY WORDS:

Maximal Strength, Explosive Strength, Electromyograph, Basketball

PAGES: 57
BIG AREA: Ciências da Saúde
AREA: Educação Física
SUMMARY:

The explosive strength, presented by the rate force development (RFD), is seen as a determining characteristic in fast actions present in basketball. However, we observed different relationships between RFD and maximum strength, as well as different relationships between RFD and neuromuscular variables according to the evaluated population. The aim of the present study is to evaluate the degree of determination of maximum strength (Tmax) and neuromuscular recruitment variables (RMS), Absolute Energy (AE) and the frequency of firing of motor units (MPF) in explosive force (RFD) for basketball athletes. Nine basketball athletes from the same team (mean ± SD; age: 20.8 ± 2.08 years; body mass: 84.33 ± 8.80kg; height: 1.86 ± 0.095 meters; practice time: 11.67 ± 1.65 years) were evaluated through maximal isometric contraction with highest value of maximum force among 3 attempts. The RFD were evaluated and correlated with the RMS and AE values and the MPF values of the electromyographic signal at instants 0-50; 50-100, 100-150 and 150-200 milliseconds. The results show a reduction in RFD and MPF over the evaluated time windows and also a correlation between MPF and TDF in the 0-50ms time window (R2 0.67 p<0.05). The results show no relationship between RFD and RMS and AE, in addition to these variables not showing significant reductions in the evaluated time windows. The levels of RFD show to be more related to the firing frequency of the motor units than the maximum force and the level of recruitment of the motor units. 

COMMITTEE MEMBERS:
Externo à Instituição - BERNARDO NEME IDE - UNICAMP
Presidente - 404987 - JAKE CARVALHO DO CARMO
Interno - 2157174 - LEONARDO LAMAS LEANDRO RIBEIRO
Interno - 1979784 - RINALDO ANDRE MEZZARANE