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Effects of Unstable Conditions on Kinematics and Performance Variables in Young Handball Players.

Urbán T, Gutiérrez Ó, Moreno FJ - J Hum Kinet (2015)

Bottom Line: The execution variability and outcomes found in throwing actions have received special attention in numerous studies in recent years.Results showed significant decreases in throwing velocity in unstable conditions, but these did not significantly affect the accuracy achieved in performance.Differences were also found in movement kinematics between the two throwing conditions and relationships were found between kinematics, velocity and accuracy.

View Article: PubMed Central - PubMed

Affiliation: Sport Research Center. Miguel Hernández University of Elche, Elche-Alicante (Spain).

ABSTRACT
The execution variability and outcomes found in throwing actions have received special attention in numerous studies in recent years. The aim of this study was to analyze the effect of an unstable condition on velocity, accuracy and kinematics of movement in the seven metres throw in handball. Twenty-five young handball players took part in an experiment, throwing towards a target on a stable and an unstable surface. Each participant performed 32 throws, 16 for each situation. Linear variability of the dominant hand was assessed by 3D Motion Tracking. A radar sports gun was used to record the velocity of the ball and the throws were video recorded to establish their accuracy. Results showed significant decreases in throwing velocity in unstable conditions, but these did not significantly affect the accuracy achieved in performance. Differences were also found in movement kinematics between the two throwing conditions and relationships were found between kinematics, velocity and accuracy.

No MeSH data available.


Comparison of the range of movement in all three axes in both throwing conditions.* Significant difference between conditions (p <0.01).
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f3-jhk-46-39: Comparison of the range of movement in all three axes in both throwing conditions.* Significant difference between conditions (p <0.01).

Mentions: The results obtained by the effect of the unstable condition on the kinematic variables of the throwing movement showed a significant decrease in the range of movement in the anterior-posterior axis (t 18.1 = 4.020; p<0.01; d −.41) and a significant increase in the range of movement in the vertical axis (t 18.1 = −4.723; p<0.01; d .41) in the unstable condition. Also, significant and longer movement durations were found in the unstable condition (t 18.1 = −2.361; p<0.05; d .42) (Figure 3).


Effects of Unstable Conditions on Kinematics and Performance Variables in Young Handball Players.

Urbán T, Gutiérrez Ó, Moreno FJ - J Hum Kinet (2015)

Comparison of the range of movement in all three axes in both throwing conditions.* Significant difference between conditions (p <0.01).
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4519220&req=5

f3-jhk-46-39: Comparison of the range of movement in all three axes in both throwing conditions.* Significant difference between conditions (p <0.01).
Mentions: The results obtained by the effect of the unstable condition on the kinematic variables of the throwing movement showed a significant decrease in the range of movement in the anterior-posterior axis (t 18.1 = 4.020; p<0.01; d −.41) and a significant increase in the range of movement in the vertical axis (t 18.1 = −4.723; p<0.01; d .41) in the unstable condition. Also, significant and longer movement durations were found in the unstable condition (t 18.1 = −2.361; p<0.05; d .42) (Figure 3).

Bottom Line: The execution variability and outcomes found in throwing actions have received special attention in numerous studies in recent years.Results showed significant decreases in throwing velocity in unstable conditions, but these did not significantly affect the accuracy achieved in performance.Differences were also found in movement kinematics between the two throwing conditions and relationships were found between kinematics, velocity and accuracy.

View Article: PubMed Central - PubMed

Affiliation: Sport Research Center. Miguel Hernández University of Elche, Elche-Alicante (Spain).

ABSTRACT
The execution variability and outcomes found in throwing actions have received special attention in numerous studies in recent years. The aim of this study was to analyze the effect of an unstable condition on velocity, accuracy and kinematics of movement in the seven metres throw in handball. Twenty-five young handball players took part in an experiment, throwing towards a target on a stable and an unstable surface. Each participant performed 32 throws, 16 for each situation. Linear variability of the dominant hand was assessed by 3D Motion Tracking. A radar sports gun was used to record the velocity of the ball and the throws were video recorded to establish their accuracy. Results showed significant decreases in throwing velocity in unstable conditions, but these did not significantly affect the accuracy achieved in performance. Differences were also found in movement kinematics between the two throwing conditions and relationships were found between kinematics, velocity and accuracy.

No MeSH data available.