Magnitudes de impacto e cinemática dos membros inferiores no arremesso em suspensão no handebol

Santos, Saray Giovana dos; Detanico, Daniele; Cunha, Diogo

doi:10.5007/1980-0037.2009v11n3p326

Cited by 5 publications

(4 citation statements)

References 9 publications

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“…In order to obtain signals from the accelerometer we used the model MMA7340 of Freescale semiconductors. This system is formed by microelectronics mechanisms (MEMS), which explore the mechanical proprieties of silicone to create movable structures and to detect distinct movement directions [18] , [19] , [20] . The capture of movements was conducted in actual time system with the interaction of EEG software signal acquisition.…”

Section: Methodsmentioning

confidence: 99%

Cortical Reorganization after Hand Immobilization: The beta qEEG Spectral Coherence Evidences

et al. 2013

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There is increasing evidence that hand immobilization is associated with various changes in the brain. Indeed, beta band coherence is strongly related to motor act and sensitive stimuli. In this study we investigate the electrophysiological and cortical changes that occur when subjects are submitted to hand immobilization. We hypothesized that beta coherence oscillations act as a mechanism underlying inter- and intra-hemispheric changes. As a methodology for our study fifteen healthy individuals between the ages of 20 and 30 years were subjected to a right index finger task before and after hand immobilization while their brain activity pattern was recorded using quantitative electroencephalography. This analysis revealed that hand immobilization caused changes in frontal, central and parietal areas of the brain. The main findings showed a lower beta-2 band in frontal regions and greater cortical activity in central and parietal areas. In summary, the coherence increased in the frontal, central and parietal cortex, due to hand immobilization and it adjusted the brains functioning, which had been disrupted by the procedure. Moreover, the brain adaptation upon hand immobilization of the subjects involved inter- and intra-hemispheric changes.

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Section: Methodsmentioning

confidence: 99%

Cortical Reorganization after Hand Immobilization: The beta qEEG Spectral Coherence Evidences

et al. 2013

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“…Em atletas praticantes de basquetebol e voleibol, ao realizar os treinos e partidas de competição, estão sempre sujeitos a lesões devido a biomecânica dos saltos para os arremessos e as defesas; que na verdade são uma sequência de movimentos repetitivos e recorrentes que levam ao acometimento de lesões; principalmente nos movimentos de saltos durante aterrissagem que podem ocasionar lesões nos joelhos e tornozelos, regiões que sofrem mais com os impactos (PIUCCO et al, 2007;SANTOS et al, 2009;SANTOS et al, 2007).…”

Section: O Efeito Do Impacto Repetitivo Com O Solo Em Práticas Esport...unclassified

Dispositivo para a Medição de Intensidade e Acúmulo de Impactos para a Prática Esportiva

Wiltgen,

Sousa

2023

REVTEC

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Atividades esportivas praticadas por atletas amadores ou profissionais estão sempre sujeitas aos impactos e, podem com o tempo, ou com a intensidade ocasionar lesões. Existem modalidades esportivas mais susceptíveis a impactos, principalmente nos membros inferiores. Movimentos repetitivos, de qualquer natureza, propiciam o surgimento de lesões ocasionadas por impacto que podem afastar atletas de suas atividades por longos períodos, prejudicando muito seu rendimento e condicionamento físico. Este artigo tem como objetivo apresentar um dispositivo portátil microcontrolado de baixo custo e baixo consumo de energia, capaz de medir e armazenar parâmetros ambientais e dados de impacto, referente às forças de reação do solo com os membros inferiores de atletas durante as práticas esportivas. A pesquisa evidencia a importância de que obter informação de impacto durante a prática esportiva pode prevenir que as lesões ou que as mesmas sejam agravadas. A coleta de parâmetros é importante para determinar as condições ideais de treinamento, e estratégias de execução nas atividades esportivas. Por fim, tem-se a análise prévia do comportamento do dispositivo e o planejamento das novas etapas da pesquisa.

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“…However, it is reported that when handball players perform a jump from the dominant leg, the jumping distance was approximately 5% larger than executing the jump with the non-dominant leg [44]. This can be attributed to the fact that the execution of the jump shot subjects the contralateral to the throwing arm leg to considerable mechanical loading [45][46][47][48]. Furthermore, long-term submission to systematic training results in sportspecific adaptations in strength and conditioning features [49], as well as to the factors that define handball performance [44].…”

Section: Introductionmentioning

confidence: 99%

Relationship of Vertical Jump Performance and Ankle Joint Range of Motion: Effect of Knee Joint Angle and Handedness in Young Adult Handball Players

Panoutsakopoulos

Kotzamanidou

Giannakos

et al. 2022

Sports

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The purpose of the study is to examine the effect of the ankle joint range of motion (ROM) on the vertical jump (VJ) performance of adult handball players. The active (ACT) and passive (PAS) ankle joint ROM of 12 male members of the U21 National Handball Team with the knee joint at 0°, 40°, and 90° flexion (0° = fully extended knee) was evaluated using a video analysis measuring method. Participants also performed maximum VJ with (CMJ) and without (SQJ) countermovement, as well as with (AS) and without (NAS) an arm swing. Statistical analyses included 2 × 2 × 3 MANOVA, 2 × 2 repeated measures ANOVA, and Pearson’s correlation. Results reveal that PAS-ROM was larger (p < 0.05) in all knee joint flexion angles. ROM was smaller (p < 0.05) by approximately 10° at 0° compared to 90° knee flexion. No lateral effects on ROM due to the handedness of the players were observed. AS and CM resulted in increased jump height (p < 0.05). Finally, ACT-ROM when the knee joint was flexed at 40° was highly correlated (r ≥ 0.66, p < 0.05) with VJ performance except for CMJ-AS. In conclusion, the differences in the bi-articular gastrocnemius muscle flexibility due to the alteration of the angular position of the examined joints affected the ability to generate impulse during the VJ tests.

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Magnitudes de impacto e cinemática dos membros inferiores no arremesso em suspensão no handebol

Cited by 5 publications

References 9 publications

Cortical Reorganization after Hand Immobilization: The beta qEEG Spectral Coherence Evidences

Cortical Reorganization after Hand Immobilization: The beta qEEG Spectral Coherence Evidences

Dispositivo para a Medição de Intensidade e Acúmulo de Impactos para a Prática Esportiva

Relationship of Vertical Jump Performance and Ankle Joint Range of Motion: Effect of Knee Joint Angle and Handedness in Young Adult Handball Players

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