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Acute kinematics and kinetics changes to wearable resistance during change of direction among soccer players.
- Source :
-
Research in Sports Medicine . Mar-Apr2021, Vol. 29 Issue 2, p155-169. 15p. 1 Black and White Photograph, 2 Diagrams, 3 Charts. - Publication Year :
- 2021
-
Abstract
- This study determined the acute changes in kinematics and kinetics when an additional load equivalent to 5% body mass was attached to the torso during change of direction (COD). In this within-subject repeated measures study, 14 male soccer players (age: 18.29 ± 0.32 years) volunteered to participate. Subjects performed COD under two conditions in randomized order: (1) no WR, and (2) with WR. No significant differences between the loaded and unloaded conditions in actual COD angle, approach speed, braking time, propulsive time, contact time, COD completion time (all p > 0.05, ES = 0.05–0.11), and all measured kinematic parameters (all p > 0.05, ES = 0–0.18). Nonetheless, ankle plantar/dorsi flexion ROM had possibly small increase in the loaded condition (ES = 0.24). Kinetics analysis has shown that the loaded condition was likely to have small increase in relative peak vertical propulsive ground reaction force (GRF, p = 0.11, ES = 0.41), and possible small increases in relative peak braking GRF (vertical: p = 0.21, ES = 0.42; total: p = 0.22, ES = 0.38), relative peak total propulsive GRF (p = 0.24, ES = 0.26), and relative braking impulse (horizontal, vertical, and total; p = 0.27–0.41, ES = 0.26–0.28). WR did not significantly change the acute movement techniques, meanwhile induced small increases in important kinetic stimuli for potential adaptation in COD. [ABSTRACT FROM AUTHOR]
- Subjects :
- *LEG physiology
*SOCCER
*RANGE of motion of joints
*ANALYSIS of variance
*CROSS-sectional method
*ATHLETES
*WEARABLE technology
*DYNAMICS
*REPEATED measures design
*DESCRIPTIVE statistics
*STATISTICAL sampling
*MOTION capture (Human mechanics)
*BIOMECHANICS
*DATA analysis software
*KINEMATICS
*WEIGHT-bearing (Orthopedics)
*MOTOR ability
*CLOTHING & dress
*GROUND reaction forces (Biomechanics)
Subjects
Details
- Language :
- English
- ISSN :
- 15438627
- Volume :
- 29
- Issue :
- 2
- Database :
- Academic Search Index
- Journal :
- Research in Sports Medicine
- Publication Type :
- Academic Journal
- Accession number :
- 149092474
- Full Text :
- https://doi.org/10.1080/15438627.2020.1770761