The effects of anthropometry and leg muscle power on drive and transition phase of acceleration: A longitudinal study on young soccer players

TY - JOUR

T1 - The effects of anthropometry and leg muscle power on drive and transition phase of acceleration

T2 - A longitudinal study on young soccer players

AU - Nikolaidis, Pantelis T.

AU - Ingebrigtsen, Jørgen

AU - Jeffreys, Ian

N1 - CURIS 2016 NEXS 413

PY - 2016

Y1 - 2016

N2 - Background: The aim of this study was to examine the effect of anthropometry and leg muscle power on accelerative ability and its phases (drive and transition). METHODS: Thirty-six soccer players (age 12.4±1.2 years, body mass 49.9±8.9 kg and height 154.2±10.3 cm) were tested twice, in the beginning and in the end of competitive season, for anthropometric characteristics, countermovement jump and 20-meter acceleration (split 0-10 meters and 10-20 meters, indices of drive and transition, respectively). The soccer players were grouped according to seasonal changes in 20-meter acceleration (δacc) in responders (δacc=-0.10 s), control (-0.05=δacc=0.08 s) and non-responders (δacc=0.10 s). RESULTS: Compared with the non-responders at baseline, the responders were younger (-2.0 years [-2.8;-1.1]), shorter (-10.1 cm [-19.4;-0.7]), with higher body fat percentage (7.7% [2.7%;12.6%]) and fat mass (4.1 kg [0.7;7.4]), and lower performance in the countermovement jump (-8.9 cm [-13.9;-4.0]) and 20 m acceleration (0.63 s [0.39;0.87]); during the season they had smaller body mass gain (-2.8 kg [-5.4;-0.1]), decreased Body Mass Index (BMI,-1.0 kg/m2 [-1.9;0]) and greater improvement in the 20-meter acceleration (-0.33 s [-0.38;-0.28]). The effect size for these between-group differences was large (δ2=0.18). The δacc and δ10-20 were moderately correlated with body mass difference (r=0.48 and r=0.53, P<0.01, respectively) and δBMi (r=0.50 and r=0.51, P<0.01, respectively), whereas the δ0-10 was correlated with δBMi (r=0.34, P<0.05) and δcMJ (r=-0.34, P<0.05). CONCLUSIONS: The fndings indicated that the changes in body mass had the largest effect on changes in accelerative ability and on both two phases (drive and transition). On the contrary, changes in leg muscle power had impact only on the drive phase of the acceleration.

AB - Background: The aim of this study was to examine the effect of anthropometry and leg muscle power on accelerative ability and its phases (drive and transition). METHODS: Thirty-six soccer players (age 12.4±1.2 years, body mass 49.9±8.9 kg and height 154.2±10.3 cm) were tested twice, in the beginning and in the end of competitive season, for anthropometric characteristics, countermovement jump and 20-meter acceleration (split 0-10 meters and 10-20 meters, indices of drive and transition, respectively). The soccer players were grouped according to seasonal changes in 20-meter acceleration (δacc) in responders (δacc=-0.10 s), control (-0.05=δacc=0.08 s) and non-responders (δacc=0.10 s). RESULTS: Compared with the non-responders at baseline, the responders were younger (-2.0 years [-2.8;-1.1]), shorter (-10.1 cm [-19.4;-0.7]), with higher body fat percentage (7.7% [2.7%;12.6%]) and fat mass (4.1 kg [0.7;7.4]), and lower performance in the countermovement jump (-8.9 cm [-13.9;-4.0]) and 20 m acceleration (0.63 s [0.39;0.87]); during the season they had smaller body mass gain (-2.8 kg [-5.4;-0.1]), decreased Body Mass Index (BMI,-1.0 kg/m2 [-1.9;0]) and greater improvement in the 20-meter acceleration (-0.33 s [-0.38;-0.28]). The effect size for these between-group differences was large (δ2=0.18). The δacc and δ10-20 were moderately correlated with body mass difference (r=0.48 and r=0.53, P<0.01, respectively) and δBMi (r=0.50 and r=0.51, P<0.01, respectively), whereas the δ0-10 was correlated with δBMi (r=0.34, P<0.05) and δcMJ (r=-0.34, P<0.05). CONCLUSIONS: The fndings indicated that the changes in body mass had the largest effect on changes in accelerative ability and on both two phases (drive and transition). On the contrary, changes in leg muscle power had impact only on the drive phase of the acceleration.

KW - Body composition

KW - Muscle strength

KW - Plyometric exercise

KW - Soccer

UR - http://www.scopus.com/inward/record.url?scp=84994895248&partnerID=8YFLogxK

M3 - Journal article

C2 - 26398202

AN - SCOPUS:84994895248

SN - 0022-4707

VL - 56

SP - 1156

EP - 1162

JO - Journal of Sports Medicine and Physical Fitness

JF - Journal of Sports Medicine and Physical Fitness

IS - 10

ER -