Dynamics of the support leg in soccer instep kicking

Abstract

We aimed to illustrate support leg dynamics during instep kicking to evaluate the role of the support leg action in performance. Twelve male soccer players performed maximal instep kicks. Their motions and ground reaction forces were recorded by a motion capture system and a force platform. Moments and angular velocities of the support leg and pelvis were computed using inverse dynamics. In most joints of the support leg, the moments were not associated with or counteracting the joint motions except for the knee joint. It can be interpreted that the initial knee flexion motion counteracting the extension joint moment has a role to attenuate the shock of landing and the following knee extension motion associated with the extension joint moment indirectly contributes to accelerate the swing of kicking leg. Also, appreciable horizontal rotation of the pelvis coincided with increase of the interaction moment due to the hip joint reaction force on the support leg side. It can be assumed that the interaction moment was the main factor causing the pelvis counter-clockwise rotation within the horizontal plane from the overhead view that precedes a proximal-to-distal sequence of segmental action of the swing leg.

Intervenção comportamental para melhorar a precisão do “chute no gol” em jogadores de futebol

“…Alguns estudos observacionais usaram dispositivos e recursos tecnológicos para analisar o chute, enfocando variáveis como velocidade da bola (Markovic, Dizdar & Jaric, 2006;Van den Tilaar & Ulvik, 2014), os movimentos oculares dos jogadores (Giagazoglou, Katis, Kellis & Natsikas, 2011;Peiyong & Inomata, 2012), a potência e a posição do pé durante as repetições do movimento do chute (Shan & Westerhoff, 2005;Inoue, Nunome, Sterzing, Shinkai & Ikegami, 2014), tanto em condições estáticas, realizando os chutes com a bola parada (Wilson, Wood & Vine 2009;Button, Dicks, Haines, Barker & Davids, 2011), como em condições dinâmicas, executando o chute com a bola em movimento (Shinkai, Nunome, Isokawa & Ikegami, 2009). Os dados tem apontado que as atividades musculares de outras partes do corpo (tronco, abdômen, ombros e braços), bem como os movimentos oculares do batedor, influenciam na velocidade e na potência do chute (Markovic, Dizdar & Jaric, 2006;Van den Tilaar & Ulvik, 2014;Giagazoglou et als, 2011).…”

“…Os dados tem apontado que as atividades musculares de outras partes do corpo (tronco, abdômen, ombros e braços), bem como os movimentos oculares do batedor, influenciam na velocidade e na potência do chute (Markovic, Dizdar & Jaric, 2006;Van den Tilaar & Ulvik, 2014;Giagazoglou et als, 2011). Os chutes precisos (aqueles que atingem o alvo) são, geralmente, mais lentos que os chutes imprecisos (Shan & Westerhoff, 2005;Inoue et al, 2014;Wilson, Wood & Vine, 2009;Button et al, 2011;Shinkai et al, 2009) Navarro, Van der Kamp, Ranvaud e Savelsberg 2013 A Análise do Comportamento tem acumulado evidências de que quando certos eventos ambientais seguem imediatamente alguma ação, essa ação torna-se mais provável de acontecer novamente no futuro (Skinner, 1938). O procedimento que fortalece a resposta dos indivíduos ao oferecer um estímulo como consequência da ocorrência daquela resposta é denominado reforçamento positivo e o evento que seguiu esta ação, reforço positivo.…”

Compression and texture in socks enhance football kicking performance

“…Kinematic data were captured by eight infrared cameras (Hawk Digital Camera, Motion Analysis Corporation) and recorded at 200Hz on the Cortex software (Motion Analysis Corporation, Santa Rosa, CA, USA). Before kicking trials, a static posture of each participant was captured to record the relative position between each marker (Inoue, Nunome, Sterzing, Shinkai, & Ikegami, 2014) and the same procedures were followed for marker positions on the ball.…”

Effectiveness of Special Strength Training on Some Physical and Kinetic Parameters Affecting Instep Kick for Soccer Juniors

“…One of the most important skills in soccer is the instep kick, it constitutes a basic element of a soccer game when a faster and more powerful ball needs to be generated (Inoue et.al. 2012).…”