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The Journal of Sports Medicine and Physical Fitness 2017 Apr 26

DOI: 10.23736/S0022-4707.17.06752-4

Copyright © 2017 EDIZIONI MINERVA MEDICA

lingua: Inglese

Implication of dynamic balance in change of direction performance in young elite soccer players is angle dependent?

Mehdi ROUISSI 1, Monoem HADDAD 2, Nicola L., BRAGAZZI 3, Adam L. OWEN 4, 5, Wassim MOALLA 6, Moktar CHTARA 7, Karim CHAMARI 8

1 Research Unit ”Sport Performance and Health,“ Higher Institute of Sport and Physical Education of Ksar Said, Tunis, Tunisia; 2 Sport Science Program, College of Arts and Sciences, Qatar University, Doha, Qatar; 3 School of Public Health, Department of Health Sciences (DISSAL), University of Genoa, Genoa, Italy; 4 Servette Centre for Football Research (SCFR), Servette Football Club, Geneva, Switzerland; 5 Claude Bernard University Lyon, Centre de Recherche et d’Innovation sur le Sport (CRIS), Villeurbanne, France; 6 High Institute of Sports Sciences, UR EM2S-ISSEPS, Sfax, Tunisia; 7 Tunisian Research Laboratory ‘‘Sport Performance Optimization’’, National Center of Medicine and Science in Sports, Tunis, Tunisia; 8 Athlete Health and Performance Research Centre, ASPETAR, Qatar Orthopaedic and Sports Medicine Hospital, Doha, Qatar


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BACKGROUND: Team sports require rapid whole body change of direction (COD) in order to regain, maintain possession of the ball or to avoid opponent. These actions are often performed through unilateral process, with the contralateral leg incurring no ground contact. As a result, maintaining unilateral dynamic balance remains important. The aim of this study was to examine the relationship between dynamic balance (DB) and (COD) performance in young elite soccer players.
METHODS: 20 right-footed young elite soccer players (age=16.42±0.55 year, height=176±2.5cm; leg length=95.70±3.34cm, body-mass=67.03±5.20kg) participated in this study. All players performed star excursion balance test (SEBT) with dominant (DL) and nondominant leg (NDL). 10m sprint with COD of 45°, 90°, 135° or 180° after 5m were also assessed with COD on both right and left sides.
RESULTS: Correlations analysis showed significant negative relationships (moderate to high) between COD tests (with DL and NDL) and some selected reaching directions of the SEBT. Stepwise multiple regression analysis showed that DB performance explained between 20% and 75% of the variance of COD tests. Likewise, dynamic balance contribution was dependent upon the angle of COD and the leg used to turn.
CONCLUSIONS: Some selected reaching directions of the SEBT were significantly correlated with COD’s performance in young elite soccer players which, possibly due to similarities in movement demands and muscle recruitment. Furthermore, the contribution of dynamic balance on COD performance was angle dependent and individualized specific dynamic stability exercises may be required to compensate players’ deficit in each COD angle.


KEY WORDS: Leg dominance - Cuts - Soccer - Stability - Agility

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Rouissi M, Haddad M, Nicola L, Owen AL, Moalla W, et al. Implication of dynamic balance in change of direction performance in young elite soccer players is angle dependent? J Sports Med Phys Fitness 2017 Apr 26. DOI: 10.23736/S0022-4707.17.06752-4 

Corresponding author e-mail

mehdirwissi@gmail.com