Artur Struzik1, Grzegorz Konieczny2, Kamila Grzesik3, Mateusz Stawarz3, Sławomir Winiarski4, Andrzej Rokita1. 1. Department of Team Sport Games, University School of Physical Education, Wrocław, Poland. 2. Faculty of Health Sciences and Physical Education, Witelon State University of Applied Sciences in Legnica, Poland. 3. University School of Physical Education, Wrocław, Poland. 4. Department of Biomechanics, University School of Physical Education, Wrocław, Poland.
Abstract
PURPOSE: The aim of the study was to determine the relationships between time of running over a 15-25 m section of a 30-meter run along a straight line and changes in the angle and angular velocity observed in ankle, knee and hip joints. Therefore, the authors attempted to answer the question of whether a technique of lower limbs movement during the phase of sprint maximum velocity significantly correlates with the time of running over this section. METHODS: A group of 14 young people from the Lower Silesia Voivodeship Team participated in the experiment. A Fusion Smart Speed System was employed for running time measurements. The kinematic data were recorded using Noraxon MyoMotion system. RESULTS: There were observed statistically significant relationships between sprint time over a section from 15 to 25 m and left hip rotation (positive) and between this time and left and right ankle joint dorsi-plantar flexion (negative). CONCLUSIONS: During the maximum velocity phase of a 30 m sprint, the effect of dorsi-plantar flexion performed in the whole range of motion was found to be beneficial. This can be attributed to the use of elastic energy released in the stride cycle. Further, hip rotation should be minimized, which makes the stride aligned more along a line of running (a straight line) instead of from side to side.
PURPOSE: The aim of the study was to determine the relationships between time of running over a 15-25 m section of a 30-meter run along a straight line and changes in the angle and angular velocity observed in ankle, knee and hip joints. Therefore, the authors attempted to answer the question of whether a technique of lower limbs movement during the phase of sprint maximum velocity significantly correlates with the time of running over this section. METHODS: A group of 14 young people from the Lower Silesia Voivodeship Team participated in the experiment. A Fusion Smart Speed System was employed for running time measurements. The kinematic data were recorded using Noraxon MyoMotion system. RESULTS: There were observed statistically significant relationships between sprint time over a section from 15 to 25 m and left hip rotation (positive) and between this time and left and right ankle joint dorsi-plantar flexion (negative). CONCLUSIONS: During the maximum velocity phase of a 30 m sprint, the effect of dorsi-plantar flexion performed in the whole range of motion was found to be beneficial. This can be attributed to the use of elastic energy released in the stride cycle. Further, hip rotation should be minimized, which makes the stride aligned more along a line of running (a straight line) instead of from side to side.
Authors: Gabriel Gijon-Nogueron; Francisco Jose Soler-Crespo; Raquel Sanchez-Rodriguez; David Cabello-Marique; Eva Lopezosa-Reca; Ana Belen Ortega-Avila Journal: Medicine (Baltimore) Date: 2019-05 Impact factor: 1.817
Authors: Jakub Baron; Anna Bieniec; Andrzej S Swinarew; Tomasz Gabryś; Arkadiusz Stanula Journal: Int J Environ Res Public Health Date: 2019-12-24 Impact factor: 3.390