forehand semi-open stance. forehand open stance forehand square stance
TRANSCRIPT
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FOREHAND Semi-Open Stance
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Forehand Open Stance
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Forehand Square Stance
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Forehand Square Stance
Fonte de POTÊNCIA – para frente
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Forehand Square Stance
Fonte de POTÊNCIA – para cima
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FOREHANDDiferenças entre Open Stance e Square Stance
HOFER (2004)
Tempo de Preparação (giro) para o Golpe
Open Stance Square Stance
Tempo de Preparação Curto (unidade de torque)
Longo (1 passo a mais)
Bolas Rápidas X
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FOREHANDDiferenças entre Open Stance e Square Stance
SAVIANO (2003)
Tempo de Recuperação após o Contato
Open Stance Square Stance
Tempo de Recuperação após o Contato Curto LongoBolas Rápidas X
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FOREHANDDiferenças entre Open Stance e Square Stance
KNUDSON (2006)
Precisão (Hitting Zone)
Open Stance Square Stance
Tempo de Contato com a Bola Curto LongoPrecisão X
Tempo de Contato Raquete-bola: 4 – 10 ms
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FOREHANDConclusões
Bolas rápidas...
OPEN STANCE
Bolas lentas...
SQUARE STANCE
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BACKHAND 1 Mão X 2 Mãos
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BACKHANDDiferenças entre 1 mão e 2 mãos
1 Mão 2 Mãos
Distância do pé anterior 20 a 30 cm 0Alcance X
REID & ELLIOTT (2002)
Alcance
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BACKHANDDiferenças entre 1 mão e 2 mãos
REID & ELLIOTT (2002)
Alcance – Timing
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BACKHANDDiferenças entre 1 mão e 2 mãos
1 Mão 2 Mãos
Open Stance difícil fácil Posicionamento dos Pés X
REID (2006)
Posicionamento dos Pés
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BACKHANDDiferenças entre 1 mão e 2 mãos
1 Mão 2 Mãos
Giro do Tronco limitado amploPotência X
Potência - Tronco
ELLIOTT (2000)
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BACKHANDDiferenças entre 1 mão e 2 mãos
1 Mão 2 Mãos
Disguise X
REID (2006)
Disguise (Disfarce)
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BACKHANDDiferenças entre 1 mão e 2 mãos
1 Mão 2 Mãos
Necessidade de trocar o grip para golpear:• slice• drop shot• half-volley• outros…
Sim Não
REID (2006)
Troca de Empunhadura
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BACKHANDNúmeros / Conclusões
Backhand 1 mão: 09
Backhand 2 mãos: 11
Posição Tenista Golpe
1 Federer, Roger (SUI) BK1
2 Nadal, Rafael (ESP) BK2
3 Djokovic, Novak (SRB) BK2
4 Davydenko, Nikolay (RUS) BK2
5 Ferrer, David (ESP) BK2
6 Roddick, Andy (USA) BK2
7 Nalbandian, David (ARG) BK2
8 Blake, James (USA) BK1
9 Murray, Andy (GBR) BK2
10 Wawrinka, Stanislas (SUI) BK1
11 Verdasco, Fernando (ESP) BK2
12 Gasquet, Richard (FRA) BK1
13 Almagro, Nicolas (ESP) BK1
14 Robredo, Tommy (ESP) BK1
15 Gonzalez, Fernando (CHI) BK1
16 Youzhny, Mikhail (RUS) BK1
17 Tsonga, Jo-Wilfried (FRA) BK2
18 Stepanek, Radek (CZE) BK2
19 Monaco, Juan (ARG) BK2
20 Karlovic, Ivo (CRO) BK1
Ranking ATP – Set/08
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Muito Obrigado pela Atenção, Muito Obrigado pela Atenção,
Agradeço o Convite,Agradeço o Convite,
Bom Trabalho para Todos !!!Bom Trabalho para Todos !!!
Escola de Educação Física e Esporte
Laboratório de Biomecânica