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Ground Reaction Forces and Throwing Performance in Elite and Novice Players in Two Types of Handball Shot

100%

Rousanoglou E., Noutsos K., Bayios I., Boudolos K.

Journal of Human Kinetics

2014

vol. 40

issue 1

49-55

The purpose of this study was to examine the differences in the ground reaction force (GRF) patterns between elite and novice players during two types of handball shots, as well as the relationships between throwing performance and the GRF variables. Ball velocity and throwing accuracy were measured during jump shots and 3-step shots performed by 15 elite and 15 novice players. The GRF pattern was recorded for the vertical and the anterior-posterior GRF components (Kistler forceplate type-9281, 750Hz). One-way ANOVA was used for the group differences and the Pearson coefficient for the correlation between throwing performance and GRF variables (SPSS 21.0, p ≤ 0.05). The elite players performed better in both types of shot. Both groups developed consistent and similar GRF patterns, except for the novices’ inconsistent Fz pattern in the 3-step shot. The GRF variables differed significantly between groups in the 3-step shot (p ≤ 0.05). Significant correlations were found only for ball velocity and predominantly for the novice players during the 3-step shot (p ≤ 0.05). The results possibly highlight a shortage in the novice ability to effectively reduce their forward momentum so as to provide a stable base of support for the momentum transfer up the kinetic chain, a situation that may predispose athletes to injury.

Assessment of Change of Direction and Agility. Running and Dribbling among Soccer, Basketball and Handball Players: The Concept of “Agility deficit”

76%

Bekris E., Gioldasis A., Zacharakis E., Noutsos K., Meletakos P., Smirniotou A.

vol. 44

63-77

The primary objective of this study is to conduct a comparative analysis of change of direction (COD) and agility among players engaged in soccer, basketball, and handball. Additionally, the researchers introduced the novel concept of “Agility deficit”, aimed at evaluating distinctions between COD and agility during running (COD-R; Agility-R) and dribbling (COD-D; Agility-D). The participant cohort comprises 38 individuals with an average age of 20.63 years, distributed across 13 handball players, 12 soccer players, and 13 basketball players. Statistical analyses, specifically ANOVA accompanied by Tukey’s post hoc comparisons, have been employed to discern significant differences among subgroups. While no noteworthy disparities among groups were observed in both COD-D and Agility-D when participants manipulated the balls using their hands, a marked superiority in performance emerged for soccer players when the balls were manipulated with their legs. Soccer players exhibited expedited responses compared to their basketball and handball counterparts when confronted with a visual stimulus during the Agility-R test (reduced Agility-R deficit). Furthermore, the Agility-D deficit underscored the heightened visual challenge to react in visual stimuli during dribbling in soccer. Independent of the type of ball handling, soccer players consistently demonstrated a diminished Agility-D deficit, affirming their superior visual ability. The performance in Agility-D further revealed that visual ability plays a pivotal role in influencing dribbling ability. The study posits that, for a comprehensive assessment of a player’s visual ability during running or dribbling, interpretations of both Agility-R deficit and Agility-D deficit are imperative. Consequently, the proposed indexes of Agility-R deficit and Agility-D deficit present valuable tools for evaluating players’ COD and Agility abilities during running or dibbling. However, the efficacy of these assessments in real-game situations remains undetermined, requiring further investigation.

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1 Central European Journal of Sport Sciences and Medicine

1 Journal of Human Kinetics

1 2023

1 2014

2 Noutsos K.

1 Bayios I.

1 Bekris E.

1 Boudolos K.

1 Gioldasis A.

1 Meletakos P.

1 Rousanoglou E.

1 Smirniotou A.

1 Zacharakis E.

Search results

Ground Reaction Forces and Throwing Performance in Elite and Novice Players in Two Types of Handball Shot

Assessment of Change of Direction and Agility. Running and Dribbling among Soccer, Basketball and Handball Players: The Concept of “Agility deficit”