TY - JOUR
T1 - Effects of eccentric overload bout on change of direction and performance in soccer players
AU - De Hoyo, M.
AU - De La Torre, A.
AU - Pradas, F.
AU - Sañudo, B.
AU - Carrasco, L.
AU - Mateo-Cortes, J.
AU - Domínguez-Cobo, S.
AU - Fernandes, O.
AU - Gonzalo-Skok, O.
PY - 2015/4/1
Y1 - 2015/4/1
N2 - The aims of this study were to analyse the effects of eccentric overload training (EOT) on kinetic parameters during change of direction (COD) and performance related to sprinting and jumping abilities. 20 male soccer players performed 2 different protocols: 1) 5-min cycling warm-up and 2) 5-min cycling warm-up+YoYo half-squat exercise. The outcome measured included vertical ground reaction force (vGRF) and propulsive force (PvGRF), time to vGRF (T-vGRF) and propulsive force (T-PvGRF), contact time (CT), eccentric (ECC-IMP), concentric (CONC-IMP) and total (TOT-IMP) impulses and moments (Mx, My and Mz) during 2 COD tasks. Additionally, subjects performed a counter-movement jump (CMJ) and 20 m sprint tests. Results showed a substantial better improvement (likely to almost certainly) in vGRF (ES: 0.84), vAGRF (ES: 0.72), CT (ES: 0.48), My (ES: 0.35), Mz (ES: 0.44) and ECC-IMP (ES: 0.45) during crossover cutting maneuver, whereas during side-step cutting maneuver Time-ECC (ES: 0.68), CT (ES: 0.64), vGRF (ES: 0.48) and My (ES: 0.47) were substantially enhanced (likely). Furthermore, substantial better performance was found in CMJ (ES: 0.47; very likely) and 20 m (ES: 0.20; possibly). In conclusion, EOT produced a better muscle activation during 2 different COD tasks and greater sprinting and jumping performance.
AB - The aims of this study were to analyse the effects of eccentric overload training (EOT) on kinetic parameters during change of direction (COD) and performance related to sprinting and jumping abilities. 20 male soccer players performed 2 different protocols: 1) 5-min cycling warm-up and 2) 5-min cycling warm-up+YoYo half-squat exercise. The outcome measured included vertical ground reaction force (vGRF) and propulsive force (PvGRF), time to vGRF (T-vGRF) and propulsive force (T-PvGRF), contact time (CT), eccentric (ECC-IMP), concentric (CONC-IMP) and total (TOT-IMP) impulses and moments (Mx, My and Mz) during 2 COD tasks. Additionally, subjects performed a counter-movement jump (CMJ) and 20 m sprint tests. Results showed a substantial better improvement (likely to almost certainly) in vGRF (ES: 0.84), vAGRF (ES: 0.72), CT (ES: 0.48), My (ES: 0.35), Mz (ES: 0.44) and ECC-IMP (ES: 0.45) during crossover cutting maneuver, whereas during side-step cutting maneuver Time-ECC (ES: 0.68), CT (ES: 0.64), vGRF (ES: 0.48) and My (ES: 0.47) were substantially enhanced (likely). Furthermore, substantial better performance was found in CMJ (ES: 0.47; very likely) and 20 m (ES: 0.20; possibly). In conclusion, EOT produced a better muscle activation during 2 different COD tasks and greater sprinting and jumping performance.
KW - crossover cutting
KW - eccentric overload training
KW - maximal power output
KW - muscle performance
KW - side-step cutting
UR - http://www.scopus.com/inward/record.url?scp=84925881237&partnerID=8YFLogxK
U2 - 10.1055/s-0034-1395521
DO - 10.1055/s-0034-1395521
M3 - Article
C2 - 25525954
AN - SCOPUS:84925881237
SN - 0172-4622
VL - 36
SP - 308
EP - 314
JO - International Journal of Sports Medicine
JF - International Journal of Sports Medicine
IS - 4
ER -