Akademik Veri Yönetim Sistemi
cilt.2, sa.25, ss.14-18, 2023 (Hakemli Dergi)
ABSTRACT
This study was conducted to investigate the relationship between vertical jump height and negative block
performance of elite male volleyball players in the positions of spiker and middle player. Twenty-two
players, 10 middle players and 12 spikers, aged 25-30 years, playing in professional volleyball league in
Turkey participated in the study. During 15 training matches, vertical jump distances were recorded with
VERT belt and negative block performances (-) ineffective block and (=) erroneous block percentages)
were recorded with Data Volley4 software. Since the data did not show normal distribution as a result of
normality analysis performed in SPSS 25 program, the relationship between the variables was determined
by Spearman correlation analysis. As a result of the analysis, there was no correlation between the average
jump height of the middle players and their block error percentages, while there was a strong positive
significant correlation in ineffective block percentages. There was a strong positive correlation between
the vertical jump height of the spikers and their ineffective block percentage, while there was a strong
negative correlation in their block error percentage. As the vertical jump height of the middle players and
spikers increased, ineffective block percentage increased. It can be said that as the vertical jump height
of the spikers increases, the block error percentage decreases, while the vertical jump height of the middle
players does not affect the block error percentage.
Keywords: Spiker, middle player, vertical jump, negative block